MBi Nutraceuticals Thymus Complex Review

This page presents MBi Nutraceuticals Thymus Complex Glandular Tissue Concentrate, sold as 180 capsules. The page heading in its description section reads Thyroid 120mg Glandular Tissue Concentrate, and the copy opens by saying it supports the thyroid gland, which the text describes as responsible for processes all over the body, from protein synthesis to metabolism and immunity. It states that Thyroid-120 provides complete nutrition for the thyroid gland, explaining that the thyroid is one of the endocrine glands that make hormones regulating physiological functions, including the thyroid hormones that regulate metabolism, energy level, and circulation. Under the heading Thymus Complex Provides a Comprehensive Blend of Immune-Enhancing Ingredients, the page says the ingredients boost the body's natural immune function and help maintain good health and prevent disease. It says Immune Plus assists in establishing the cellular immune system, activating the immune system, and making it more aggressive in defending against invading bacteria and viruses. A section on New Zealand freeze dried glandulars says these are protected by pH sensitive coatings that shield active biological components, hormones, enzymes, polypeptides, and other nutrients from gastric juices, HCL and pepsin. It notes Immune Plus is especially important for vegetarians or others lacking animal dietary protein. Another section says the product is used for glandular repair and maintenance and for hormonal imbalances, assisting blood formation, storage, circulation, filtration, and repair, improving the small intestine, and supporting cleansing and detoxification. It says Immune Plus helps the body fight stress, stabilize blood sugar patterns, increase fat mobilization, prevent cell breakdown, and reduce inflammation, and that it promotes growth and protein synthesis. The final section, Promotes Resistance, claims the product promotes resistance to disease and cancer, builds resistance in the respiratory tract, maintains healthy outer tissue layers, and keeps epithelial tissues from drying and degenerating. It says the product is effective in detoxifying small viruses, bacteria, certain fungal diseases, and heavy metal poisonings, and that its ingredients support bones, teeth, connective tissue, blood vessel walls, cartilage, joints, and intestinal walls. The page lists uses including preventing colds, hay fever, sore teeth and gums, muscle pain, poor healing, arthritis, rheumatism, cataracts, and eye infections. These are the page's own claims and have not been verified here. The page shows a price of $63.18 USD with shipping calculated at checkout, a SKU of MN-THYM, and stock status 2, with pickup available at the MHP Longmont Warehouse.

Product Focus: Immune HealthAlso covers:Breathing
Tier ⓘ
Tier 4 · Rank 30
Tier 4 · Emerging. A promising mechanism or animal data, with thin human evidence so far. Rank 30 within Tier 4 for Immune Health; 90 of 121 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
39 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
68% of 3
Biohacker Mentions
9 of 10

Study, Trial or Testing Result Summary

Members Only105 human studies · 39 improved

3 of these 105 human studies gave the ingredient by drip or injection, not by mouth.

105 human studies39 improved39 no effect135,702 people studied

Vitamin C is at a full studied dose here. Across 29 trials, at least 200 mg daily did not make colds less common in the general public, but colds were 8% shorter in adults and 14% shorter in children, and about half as common in marathon runners, skiers and soldiers [1]. A review of eight reviews concluded it does not prevent colds [2]. Zinc is also at a full dose. Large reviews found it did not prevent colds but may shorten them by about two days when taken once a cold starts [3][4]. Vitamin E is at a full dose. In older adults it improved some immune responses and vaccine reactions [5], but in nursing home residents it did not cut overall respiratory infections [6]. Copper is at a full dose, but its evidence is limited and mixed, with benefit mainly in deficient or severely ill people [7][8]. For vitamin A, the best evidence found no drop in illness or death [9]. The 460 mg proprietary blend lists no ingredient amounts, and no studies of it were given. Animal and cell studies are never counted.

See all 105 studies →Hide the studies

Review Totals and Summary

Members Only3 reviews · 68% positive
3 reviews · Google Shopping 3
68% positive0% neutral32% negative

I could not find any customer reviews of MBi Thymus Complex on the pages I could reach. The only MBi review data was for an unrelated MBi product, colloidal silver. The themes below therefore come from Nutricology Thymus reviews on iHerb, a comparable glandular thymus supplement from a different brand, and should not be treated as MBi feedback. Reviewers there mostly praise a noticeable immune benefit. Many report feeling a difference within days, including better resistance to viral infections and quicker recovery from illness. Enthusiasm is strongest among people who see themselves as immune-vulnerable. These include older adults, people undergoing chemotherapy, and people with seasonal allergies or food sensitivities. Many buyers explain their purchase by saying the thymus shrinks with age or under stress. They treat the supplement as a way to counter that decline and repair the effects of stress. Some use it as a general tonic for energy and well-being. Reviewers also like the good quality, the fast delivery and the packaging. The reviews I saw did not show consistent complaints, though the negative share was small. Most feedback is anecdotal, and nothing in it shows the benefit is clinically proven. For MBi Thymus Complex specifically, I'd suggest checking Amazon or the manufacturer's own listing for real reviews before relying on this proxy.

Biohacker Summary

Members Only9 of 10 recommend it
9 of 10 biohackers on our panel recommend it

The statements never name a main ingredient for this product, so the panel's views are spread across several smaller ingredients, and zinc and vitamin C drew the most comment. Zinc was the most discussed smaller ingredient in this product: most of the panel recommend or use it, citing testosterone, wound healing, mood, immune support and sleep, with doses of 15 milligrams in the morning for longevity and 30 milligrams for sperm health before IVF. One panelist warned that too much zinc can cause a copper shortfall, and one pairs it with vitamin C for immunity. Vitamin C, also a smaller ingredient in this product, was recommended by several for collagen, skin and joints, often taken with collagen, though one panelist stopped using a vitamin C serum because of its smell. Vitamin A, vitamin E and copper got only brief, mostly neutral mentions, and one panelist warned that generic multivitamins are often full of fillers and synthetics.

See all 10 biohackers →Hide the biohackers
  • Dr. Eric Berg · Vitamin A · neutral
    • 8 Nov 2026 · neutral · Facebook ↗
      Mentions that the body relies on healthy fats to absorb essential vitamins like A, D, E, and K, which help support skin health, moisture, and normal cell function.
    • 7 Nov 2026 · warns · Facebook ↗
      Warns against generic multivitamins, stating they are often full of fillers and synthetics.
    • 7 Nov 2026 · Vitamin E · warns · Facebook ↗
      Warns against generic multivitamins, stating they are often full of fillers and synthetics.
    • 7 Nov 2026 · Vitamin C · warns · Facebook ↗
      Warns against generic multivitamins, stating they are often full of fillers and synthetics.
    • 7 Nov 2026 · Zinc · recommends · Facebook ↗
      Recommends zinc as a trace mineral, noting that modern farming practices deplete it from the soil, leading to low levels in crops.
    • 6 Nov 2026 · Vitamin C · neutral · Instagram ↗
      Mentions that bleeding or swollen gums point to vitamin C deficiency, and sugar competes with it directly, reducing absorption.
    • 6 Nov 2026 · Zinc · neutral · Instagram ↗
      Notes that white spots on nails point to zinc deficiency, which is usually depleted by eating sugar and refined carbs.
    • 6 Nov 2026 · Zinc · recommends · YouTube ↗
      States that zinc greatly supports natural killer cells.
    • 1 Nov 2026 · Zinc · neutral · YouTube ↗
      States that zinc is needed to absorb magnesium.
    • 31 Oct 2026 · Zinc · recommends · YouTube ↗
      Recommends ensuring sufficient zinc intake because the prostate needs enough zinc for the conversion from testosterone to DHT to be smooth and optimized.
    • 26 Oct 2026 · Vitamin C · neutral · YouTube ↗
      Mentions that lemon is loaded with vitamin C, and when combined with coffee, vitamin C significantly increases the bioavailability of antioxidants in the coffee.
    • 26 Oct 2026 · Zinc · recommends · YouTube ↗
      Identifies zinc as an essential mineral for building hair, and that deficiency in it leads to a high risk for hair loss.
    • 25 Oct 2026 · Vitamin C · recommends · Facebook ↗
      Dr. Berg states that Vitamin C helps fight biofilms and is essential for making collagen in gums, teeth, and capillaries.
    • 24 Oct 2026 · neutral · YouTube ↗
      Notes that low vitamin A can lead to dry eyes, dry mouth, and night vision issues.
  • Dr. Rhonda Patrick · Zinc · neutral
    • 6 Nov 2026 · neutral · Instagram ↗
      Mentions that getting too little zinc may play a role in declining testosterone levels, and that zinc helps the body make testosterone.
    • 29 Sep 2026 · recommends · YouTube ↗
      Notes that not getting enough zinc can affect testosterone, as zinc is very important for testosterone synthesis.
    • 28 Sep 2026 · recommends · YouTube ↗
      Recommends men take a 30 milligram zinc supplement for sperm health when preparing for IVF.
    • 25 Aug 2026 · Vitamin E · neutral · Facebook ↗
      Lutein and zeaxanthin can also be obtained from certain multivitamins.
    • 25 Aug 2026 · Vitamin C · neutral · Facebook ↗
      Lutein and zeaxanthin can also be obtained from certain multivitamins.
    • 25 Aug 2026 · Vitamin A · neutral · Facebook ↗
      Lutein and zeaxanthin can also be obtained from certain multivitamins.
    • 21 Aug 2026 · neutral · Instagram ↗
      Discusses findings from a meta-analysis on zinc supplementation, noting it improved insulin resistance, inflammation, and oxidative stress in people with diabetes or prediabetes, and explains its biological role in the pancreas.
    • 5 Jun 2026 · recommends · Instagram ↗
      Recommends nutrients like zinc for men to prioritize sperm mitochondrial health.
    • 5 Jun 2026 · Vitamin C · recommends · Instagram ↗
      Recommends nutrients like vitamin C for men to prioritize sperm mitochondrial health.
    • 4 May 2026 · Vitamin C · uses · YouTube ↗
      Dr. Rhonda Patrick's daughter chugs an Emergency fizzy drink in the morning to ensure she gets some vitamin C and micronutrients before school.
    • 5 Feb 2026 · Vitamin E · recommends · Facebook ↗
      Choosing a multivitamin that includes lutein and zeaxanthin ensures you get meaningful amounts every day.
    • 5 Feb 2026 · Vitamin C · recommends · Facebook ↗
      Choosing a multivitamin that includes lutein and zeaxanthin ensures you get meaningful amounts every day.
    • 5 Feb 2026 · Vitamin A · recommends · Facebook ↗
      Choosing a multivitamin that includes lutein and zeaxanthin ensures you get meaningful amounts every day.
    • 9 Jan 2026 · Vitamin E · neutral · Facebook ↗
      Notes that ~60% of Americans are low in vitamin E.
  • Thomas DeLauer · Vitamin C · recommends
    • 6 Nov 2026 · recommends · YouTube ↗
      Recommends whole food vitamin C, found in kiwi fruit, citrus, and bell peppers, to help clear uric acid by competing at kidney transporters, preventing reabsorption.
    • 26 Oct 2026 · recommends · YouTube ↗
      Recommends taking vitamin C along with collagen about an hour before a workout for connective tissue benefits.
    • 23 Oct 2026 · uses · YouTube ↗
      Uses vitamin C as part of their immunity duo, stating it is important for boosting the immune system, especially during cold and flu season.
    • 23 Oct 2026 · Zinc · uses · YouTube ↗
      Adds zinc to their immunity duo because it helps them absorb vitamin C, considering the two together a fantastic combination for fall and winter.
    • 8 Oct 2026 · Zinc · recommends · Facebook ↗
      Recommends zinc, noting it is a cofactor for enzymes that build neurotransmitters, and deficiency can affect mood, happiness, and motivation.
    • 4 Oct 2026 · recommends · YouTube ↗
      Recommends consuming vitamin C to aid in NADPH recycling, which is necessary for glutathione to be reused after neutralizing oxidative stress.
    • 3 Oct 2026 · Zinc · neutral · YouTube ↗
      Mentions that more zinc could be beneficial for testosterone, but it's not working on the axis that most people need help with.
    • 29 Sep 2026 · uses · YouTube ↗
      Takes Purity's liquid liposomal vitamin C for immune support and overall wellness, finding it easy to add to water, juice, or take straight up due to its good taste.
    • 18 Sep 2026 · neutral · Facebook ↗
      Compares the Vitamin C content of oranges (53mg) to guava (228mg), noting guava has 4x more.
    • 18 Sep 2026 · Zinc · neutral · Facebook ↗
      Compares zinc content, noting salmon has under 1mg while oysters have 74mg per 100g, a 70x difference.
    • 6 Sep 2026 · Zinc · recommends · Instagram ↗
      Recommends keeping zinc levels topped off because it is a critical cofactor for over 300 enzymes and is important for immune cells, testosterone, and wound healing.
    • 2 Sep 2026 · Zinc · recommends · YouTube ↗
      Recommends 15 mg of supplemental zinc if oysters are not realistic, but emphasizes that food source zinc is better as it comes with natural cofactors like copper and selenium.
    • 29 Aug 2026 · neutral · Instagram ↗
      States that collagen synthesis is vitamin C dependent, in the context of glowing skin.
    • 25 Aug 2026 · recommends · YouTube ↗
      Recommends Vitamin C for sleep, noting that intake in the range of 125 to 200 mg per day is associated with a lower risk of sleep disorders and sleep apnea, with the benefit plateauing beyond this range.
  • Andrew Huberman · Zinc · neutral
    • 5 Nov 2026 · neutral · YouTube ↗
      Notes that AG1 Pro contains zinc carnosine to support and improve the lining of the gut.
    • 29 Oct 2026 · uses · YouTube ↗
      Zinc carnosine to support and improve the lining of your gut.
    • 26 Oct 2026 · uses · YouTube ↗
      Notes that AG1 Pro contains zinc carnosine to support and improve the lining of the gut.
    • 19 Oct 2026 · recommends · YouTube ↗
      States that AG1 Pro contains zinc carnosine to support and improve the lining of the gut.
    • 12 Oct 2026 · uses · YouTube ↗
      Uses AG1 Pro, which contains zinc carnosine to support and improve the lining of the gut.
    • 28 Sep 2026 · uses · YouTube ↗
      States that AG1 Pro contains zinc carnosine to support and improve the lining of the gut, and he was already taking some of these ingredients separately.
    • 21 Sep 2026 · uses · YouTube ↗
      States that AG1 Pro includes zinc carnosine, which he was already taking separately, to support and improve the lining of the gut.
    • 14 Sep 2026 · uses · YouTube ↗
      Personally takes zinc carnosine, which is included in AG1 Pro to support and improve the lining of the gut.
    • 31 Aug 2026 · uses · YouTube ↗
      AG1 Pro has zinc carnosine to support and improve the lining of your gut. Some of these ingredients I personally was already taking separate from the AG1 formula.
    • 24 Aug 2026 · recommends · YouTube ↗
      States that AG1 Pro contains zinc carnosine to support and improve the lining of your gut.
    • 17 Jun 2026 · Vitamin E · uses · X ↗
      Takes a multivitamin every day for longevity.
    • 17 Jun 2026 · Vitamin C · uses · X ↗
      Takes a multivitamin every day for longevity.
    • 17 Jun 2026 · Vitamin A · uses · X ↗
      Takes a multivitamin every day for longevity.
    • 2 Feb 2026 · Vitamin C · recommends · YouTube ↗
      Recommends AG1, a vitamin, mineral, and probiotic drink, and notes that for a limited time, a subscription comes with additional supplements.
  • Dave Asprey · Vitamin C · neutral
    • 3 Nov 2026 · neutral · YouTube ↗
      Recounts a doctor telling him in his 20s that vitamin C would kill him.
    • 24 Oct 2026 · recommends · Facebook ↗
      Recommends taking vitamin C for better skin health.
    • 7 Oct 2026 · uses · YouTube ↗
      States that currently, he is only taking vitamin C and vitamin D.
    • 7 Oct 2026 · Vitamin E · uses · YouTube ↗
      Dave Asprey's kids get a little bit of vitamin E every day, which helps to stabilize the bad oils they get when eating at restaurants.
    • 7 Oct 2026 · Zinc · uses · YouTube ↗
      Developed a nonnano zinc sunscreen over five years, stating her skin is probably better now than it's ever been.
    • 3 Sep 2026 · Zinc · recommends · YouTube ↗
      Emphasizes the importance of having enough zinc before trying advanced longevity strategies like peptides.
    • 3 Sep 2026 · Copper · recommends · YouTube ↗
      Emphasizes the importance of having enough copper before trying advanced longevity strategies like peptides.
    • 3 Sep 2026 · Vitamin A · recommends · YouTube ↗
      Recommends real vitamin A for people on the spectrum, noting that many cannot convert plant vitamin A and need the good stuff he includes in his Vitam DAKNE product.
    • 1 Sep 2026 · Zinc · recommends · YouTube ↗
      Suggests that zinc has better safety and protective data than meds for reducing cardio respiratory risk.
    • 18 Aug 2026 · Vitamin E · recommends · YouTube ↗
      Recommends Vitamin E as one of the most important supplements for overall health.
    • 14 Aug 2026 · neutral · Podcast ↗
      Dave Asprey reflects on how new research clarifies the mechanism behind IV vitamin C's anti-cancer effect, vindicating a decades-old idea that was dismissed for the wrong reasons.
    • 12 Aug 2026 · Vitamin E · uses · Facebook ↗
      Takes Vitamin DAKE from Suppgrade Labs because D3, A, K2, and E work together.
    • 12 Aug 2026 · Vitamin A · uses · Facebook ↗
      Takes Vitamin DAKE from Suppgrade Labs because D3, A, K2, and E work together.
    • 25 Jul 2026 · neutral · Facebook ↗
      Notes that plain Vitamin C isn't enough and that most people never think to check for a specific ingredient that makes it work.
  • Ben Greenfield · Copper · neutral
    • 29 Oct 2026 · neutral · YouTube ↗
      Mentions that overshooting zinc can lead to a copper deficiency, highlighting the interplay between these elements.
    • 29 Oct 2026 · Zinc · warns · YouTube ↗
      Ben Greenfield's formulation includes 30 grams of zinc a day, taken for one week before surgery and two weeks after, as it is an important cofactor for wound healing.
    • 29 Oct 2026 · Vitamin E · neutral · YouTube ↗
      Mentions a recent study showing no significant increase in bleeding for patients on Vitamin E supplementation during open heart surgery, which was interesting for him to learn.
    • 29 Oct 2026 · Vitamin C · recommends · YouTube ↗
      States that vitamin C is extremely important for collagen turnover and cites orthopedic data showing that 500 mg to 1 g of vitamin C can reduce the rate of complex regional pain in total knee replacements and wrist fractures.
    • 21 Oct 2026 · Vitamin A · neutral · Instagram ↗
      Notes that Vitamin A is a fat-soluble vitamin that supports healthy skin cell turnover.
    • 15 Oct 2026 · Vitamin C · recommends · Podcast ↗
      Mentions vitamin C as part of a bare-minimum protocol.
    • 10 Oct 2026 · Zinc · recommends · YouTube ↗
      Emphasizes that zinc sufficiency is crucial for immunity because the thymus-derived peptide thymulin, which trains lymphocytes, requires zinc to be active.
    • 24 Sep 2026 · Vitamin C · neutral · YouTube ↗
      Notes that while vitamin C has significant value, the optimal dose is a vexed question, and high doses might not always be beneficial, potentially blunting the hormetic effects of exercise.
    • 19 Sep 2026 · Zinc · recommends · YouTube ↗
      Recommends adding zinc into one's stack because it is a co-factor for enzymes involved in testosterone synthesis and sperm maturation, and zinc deficiency is a reproducible cause of low sperm count.
    • 19 Sep 2026 · Zinc · neutral · Podcast ↗
      He mentions zinc as a supplement with real human data behind it for male fertility.
    • 8 Sep 2026 · Zinc · neutral · X ↗
      Zinc may support both testosterone and sperm count.
    • 7 Sep 2026 · uses · X ↗
      Says Formula IQ CopperIQ Serum has stayed in their routine to close out summer strong.
    • 25 Aug 2026 · Vitamin C · neutral · X ↗
      Notes that IV vitamin C has been used for decades for cancer patients with almost no standardization and that he receives many questions about its effectiveness and combination with chemo.
    • 15 Aug 2026 · Zinc · warns · YouTube ↗
      Warns that he was taking so much zinc without realizing it because it was in five different things he was taking, and he couldn't pinpoint the problem.
  • Dr. Mark Hyman · Zinc · neutral
    • 29 Oct 2026 · neutral · YouTube ↗
      Explains that zinc is important for the body's repair crew, helping to heal damaged tissue, and a deficiency can lead to cuts and wounds taking longer to heal.
    • 19 Oct 2026 · Vitamin A · neutral · YouTube ↗
      Mentions that vitamin A levels can be looked at to get a deep sense of what's happening with nutrient levels.
    • 12 Oct 2026 · Vitamin C · recommends · YouTube ↗
      Recommends vitamin C as a basic supplement during detoxification to help with inflammation and detoxification.
    • 7 Oct 2026 · uses · YouTube ↗
      Gave a patient with psoriatic arthritis a little zinc, which contributed to significant improvement in her condition.
    • 7 Oct 2026 · Vitamin C · neutral · Podcast ↗
      Dr. Hyman mentions vitamin C as an advanced therapy for skin repair.
    • 7 Oct 2026 · Vitamin C · recommends · YouTube ↗
      Mentions topical vitamin C as an antioxidant that can help skin with aging.
    • 6 Oct 2026 · Vitamin C · neutral · X ↗
      Mentions that what they do when a cold comes on is not just vitamin C.
    • 5 Oct 2026 · recommends · YouTube ↗
      Recommends ensuring adequate zinc intake on a regular basis for immune support, noting some data on zinc lozenges for early cold.
    • 5 Oct 2026 · Vitamin A · recommends · YouTube ↗
      Recommends taking 50,000 units of vitamin A for three to five days right at the onset of symptoms if one feels they might be getting sick.
    • 5 Oct 2026 · Vitamin C · recommends · YouTube ↗
      Recommends ensuring adequate vitamin C intake on a regular basis for immune support, stating it's important for healthy immune function despite mixed data on its effectiveness for colds.
    • 30 Sep 2026 · Vitamin A · neutral · YouTube ↗
      Notes that night blindness is caused by vitamin A deficiency.
    • 30 Sep 2026 · Vitamin C · neutral · YouTube ↗
      Mentions that vitamin C was the very first vitamin discovered, isolated, and synthesized in 1932, and its deficiency caused scurvy.
    • 22 Sep 2026 · recommends · Instagram ↗
      Recommends correcting nutrient deficiencies with zinc.
    • 14 Sep 2026 · recommends · Facebook ↗
      Recommends nutrient-dense foods rich in zinc, such as pumpkin seeds and oysters, to reduce inflammation.
  • Siim Land · Vitamin C · recommends
    • 29 Oct 2026 · recommends · Instagram ↗
      Recommends taking vitamin C with collagen to support joint collagen synthesis.
    • 14 Oct 2026 · neutral · Instagram ↗
      States that vitamin C is needed for initiating collagen synthesis and that higher vitamin C intake appears to increase vitamin C content in the skin.
    • 14 Oct 2026 · Copper · neutral · Instagram ↗
      Mentions that copper is a mineral necessary for making collagen.
    • 30 Sep 2026 · neutral · X ↗
      Lists sauerkraut and fruit as sources of Vitamin C.
    • 30 Sep 2026 · Vitamin A · neutral · X ↗
      Lists liver and carrots as sources of Vitamin A.
    • 6 Sep 2026 · neutral · X ↗
      Notes that Vitamin C is one of several supplements with human evidence.
    • 5 Aug 2026 · Zinc · recommends · YouTube ↗
      States that deficiencies in nutrients such as zinc can impair normal immune regulation.
    • 27 Jul 2026 · neutral · X ↗
      Notes that researchers found vitamin C alleviates ferro-aging, a process of iron overload and lipid peroxidation that drives aging, and that it directly inhibited ACSL4, a protein driving ferro-aging.
    • 27 Jul 2026 · neutral · X ↗
      States that Vitamin C has a central role in aging and longevity, and that in monkeys, oral vitamin C slowed ovarian aging during a 3.3-year study.
    • 27 Jul 2026 · recommends · YouTube ↗
      States that vitamin C is one of the most important vitamins for staying healthy and aging well, and that intakes of 200 to 400 mg a day from food or supplements largely saturates plasma and neutrophils in most healthy adults. He also recommends spreading out the vitamin C across the day to avoid oversaturation.
    • 27 Jul 2026 · Vitamin E · neutral · YouTube ↗
      Notes that oral vitamin E and C supplementation has been noted to increase the dose of UVB radiation from the sun needed to cause redness of the skin, suggesting increased resilience against sun damage. He also mentions a trial where a combination of slow-release vitamin C and vitamin E decreased the progression of carotid atherosclerosis in men.
    • 9 Jul 2026 · neutral · YouTube ↗
      Mentions vitamin C in comparison to topical melatonin for oxidative defense, stating that melatonin would compete but is not as broadly validated clinically.
    • 9 Jul 2026 · Vitamin E · neutral · YouTube ↗
      Mentions vitamin E in comparison to topical melatonin for oxidative defense, stating that melatonin would compete but is not as broadly validated clinically.
    • 4 Jul 2026 · uses · YouTube ↗
      Was found to be vitamin C deficient by True Health and Mayo Clinic tests, and now addresses this by eating one extra kiwi fruit daily.
  • Bryan Johnson · Zinc · uses
    • 4 May 2026 · uses · X ↗
      Takes 15 mg of Zinc in the morning for longevity.
    • 14 Apr 2026 · uses · X ↗
      Takes 15 mg of Zinc in the morning.
    • 2 Apr 2026 · uses · X ↗
      Takes 15 mg of Zinc in the morning for longevity.
    • 2 Apr 2026 · Copper · uses · X ↗
      Takes 2 mg of Copper in the morning for longevity.
    • 3 Feb 2025 · Vitamin C · neutral · YouTube ↗
      Uses Vitamin C as an example of how it would be great if people knew that when they took it, it had a measurable amount and wasn't polluted, which is what Brian ensures with his products.
    • 8 Jan 2025 · Vitamin C · uses · YouTube ↗
      Applies vitamin C after showering.
    • 16 Dec 2023 · uses · YouTube ↗
      Bryan Johnson's baseline measurements showed low zinc, which was easy to fix by adjusting her protocol and supplements.
    • 26 Sep 2023 · Vitamin C · uses · YouTube ↗
      Takes 250 milligrams of Vitamin C.
    • Date not recorded · recommends · Website ↗
      Recommends adequate Zinc for hair health, noting it is in the Blueprint stack.
    • Date not recorded · Copper · uses · Website ↗
      Bryan uses a copper pillowcase as part of his curated sleep environment.
    • Date not recorded · Vitamin C · recommends · Website ↗
      Recommends Vitamin C for skin health, noting it's good to pair with collagen peptides and is included in the Blueprint stack.
    • Date not recorded · Vitamin C · uses · Website ↗
      Bryan Johnson takes Vitamin C daily as part of his Longevity Mix, which is an antioxidant-rich essential vitamin that supports immune function and metabolic energy.
    • Date not recorded · Vitamin C · uses · Website ↗
      He uses Vitamin C, typically in a serum, in the morning for skin health.
    • Date not recorded · Vitamin E · recommends · Website ↗
      Recommends adequate Vitamin E for hair health, noting it is in the Blueprint stack.
  • Peter Attia · Zinc · recommends
    • 4 Jan 2026 · recommends · YouTube ↗
      Suggests that zinc and magnesium could potentially help with vasodilation and sleep, particularly for women experiencing severe symptoms in the luteal phase.
    • 6 Aug 2025 · Vitamin A · neutral · YouTube ↗
      Notes that in mouse studies, there was a combined effect of alpha ketoglutarate with vitamin A for male mice.
    • 20 Jul 2025 · Vitamin A · neutral · YouTube ↗
      In mouse studies, Peter Attia's team found a combined effect of AKG with Vitamin A for male mice.
    • 3 Jul 2025 · Vitamin C · stopped · YouTube ↗
      Recommends vitamin C as an important molecule for skin, noting its role as a precursor for collagen synthesis, a powerful antioxidant, and a regulator of complexion for even skin tone.
    • 29 Jun 2025 · Vitamin C · stopped · YouTube ↗
      Tried a vitamin C serum mixed with ferulic acid but stopped using it because she hated the smell. She notes that topical application of vitamin C far exceeds the levels achievable by ingestion for skin benefits.
    • 1 Jun 2025 · Vitamin A · neutral · YouTube ↗
      Mentions that a lot of the profound transformation of a cell into a sperm, specifically the making of a tail, is vitamin A driven.
    • 6 Sep 2024 · neutral · YouTube ↗
      Discusses the AREDS formula, which initially included C and beta-carotene with zinc and copper, and later replaced beta-carotene with lutein and zeaxanthin, showing it could delay or reduce the conversion of mild to severe macular degeneration.
    • 6 Sep 2024 · Vitamin A · neutral · YouTube ↗
      Notes that antioxidants like vitamins A, C, and E have been looked at for cataract formation but have shown no effect.
    • 6 Sep 2024 · Vitamin C · neutral · YouTube ↗
      States that vitamin C deficiency is associated with an elevated risk of cataract, but supplementation to supranormal levels has not been shown to protect against cataract formation.
    • 6 Sep 2024 · Copper · neutral · YouTube ↗
      Discusses the AREDS formula, which initially included C and beta-carotene with zinc and copper, and later replaced beta-carotene with lutein and zeaxanthin, showing it could delay or reduce the conversion of mild to severe macular degeneration.
    • 19 Aug 2024 · Vitamin C · recommends · YouTube ↗
      Mentions the elimination of scurvy through the work of James Lind and the eventual understanding that it was due to vitamin C, initially thought to be just citrus.
    • 20 May 2024 · Vitamin E · warns · YouTube ↗
      Notes that there are some downsides to Vitamin E, including cardiovascular longitudinal risk and prostate cancer, and that discussions are needed with patients, especially those with diabetes or cirrhosis, due to studies indicating increased all-cause mortality depending on the dose.
    • 28 Aug 2023 · recommends · YouTube ↗
      Explains that for Wilson's syndrome, which can lead to liver failure, the treatment given to children is zinc, which is inexpensive and effective in outcompeting copper to prevent overload.
    • 2 Jul 2023 · Vitamin E · warns · YouTube ↗
      Peter Attia, involved in the American Urological Association Peyronie's guidelines, stated that vitamin E is not indicated for Peyronie's disease and should not be given.

RAL Summary

Members OnlyTier 4 for Immune Health

The review counts and themes are not from MBi Thymus Complex: the only MBi review data found was for an unrelated colloidal silver product, and the themes come from a different brand's thymus supplement. Its reviews are set aside, so it is graded on its studies alone. Human studies support Vitamin C (10 of 33 human studies showed an improvement), but there are not yet enough reviews to confirm it (0).

  • Emerging: not enough evidence to rank higher yet.

Where the evidence disagrees: 39 of the 105 human studies found no effect.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Immune system, Respiratory system

Combine with: For immune support, pair thymus extract with vitamin D3, vitamin C, zinc, and selenium, which support immune cell development and function. Elderberry, beta-glucans, or medicinal mushrooms (reishi, shiitake) can add immune modulation, and vitamin A and probiotics support mucosal immunity. If the real goal is thyroid support, consider a separate thyroid-specific formula with selenium, iodine (only if appropriate), zinc, iron if deficient, and L-tyrosine, with testing and guidance from a clinician first. Those with autoimmune conditions, such as Hashimoto's or Graves', should consult a healthcare provider before using glandular or immune-stimulating products.

Possible side effects: Zinc taken for colds brought more mild side effects in studies, and a very high dose of vitamin A raised a blood marker of fat damage. No product-specific side effects are known because no reviews of this product were found.

Supplement Facts

Vitamin A 2250 mcg · Vitamin C 250 mg · Vitamin E 75 mg
Supplement Facts
Serving Size 2-4 Capsule(s)
Servings Per Container 90
Amount Per Serving% Daily Value
Vitamin A2,250 mcg
Vitamin C250 mg
Vitamin E75 mg
Zinc22 mg
Copper2 mg
Proprietary Blend460 mg†
† Daily Value not established.

Other ingredients: Rice Flour, Magnesium Stearate, Calcium Ascorbate, Silica, Herbal activated base.

Directions: Recommendation: Take two to four capsules per day following meals or as directed by your health care professional.

Label source: NIH label database · Report a label change

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Graded November 10, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.