Beauty Trim Liquid L-Carnitine Wild Cherry Flavor Review

Product Focus: Regularity: Long-Term ReliefAlso covers:Digestion
Tier ⓘ
Tier 3 · Rank 2
Tier 3 · Reviewed. Strong review agreement, with limited or early support from human studies. Rank 2 within Tier 3 for Regularity: Long-Term Relief; 3 of 15 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
55 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
95% of 389
Biohacker Mentions
0 of 10

Study, Trial or Testing Result Summary

Members Only21 human studies · 16 improved

1 of these 21 human studies gave the ingredient by drip, not by mouth.

21 human studies16 improved5 no effect23,740 people studied

The main ingredient, L-carnitine, is present at a full dose. In a small controlled trial of 30 children with hard-to-treat epilepsy on a high-fat diet, adding L-carnitine for 3 months sped stomach emptying and increased how often they had bowel movements [1]. In a records review of 27 people with severe disabilities, lower carnitine levels went with worse constipation, which eased after carnitine was given [2]. In 15 adults on kidney dialysis with no comparison group, 900 milligrams a day was linked to better digestive symptoms, but bowel movements barely changed [3]. No study tested healthy adults. Niacin and vitamin B6 are at full doses. People who eat more niacin have less constipation, but these were diet surveys, not supplement trials [4][5]. Vitamin B6 helped regularity only when mixed with fiber and other ingredients [6][7]. Ginger is well below the studied dose of 480 milligrams, where it eased constipation symptoms [8]. Pantothenic acid was tested only as an injection after surgery [9]. Green tea extract has no studies for this goal. Animal and cell studies are never counted.

See all 21 studies →Hide the studies

Review Totals and Summary

Members Only389 reviews · 95% positive
389 reviews · Google Shopping 389
95% positive0% neutral5% negative

Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.

Biohacker Summary

Members Only0 of 10 recommend it
0 of 10 biohackers on our panel recommend it

Niacin and L-carnitine are the two main ingredients, and the panel leans toward recommending both. For niacin, four of the ten recommend it, mainly as a raw material for NAD, with niacinamide named for morning circadian support and for skin health; two use it, one taking enough to flush before a sauna and one applying niacinamide to skin, and one panelist who used to prescribe it stopped after trials showed disappointing effects on heart events. For L-carnitine, two recommend it for fertility, one at 1 to 3 grams a day for at least 30 days before conception and one at 500 or 750 milligrams a day, while one takes the acetyl form in the morning on a ketogenic diet and another describes its role in energy and body weight. One panelist warns against injecting L-carnitine because home-brewed or compounded versions can be contaminated, so oral forms are the safer choice. Ginger and green tea are smaller ingredients in this product, and the panel mostly uses them for digestion, inflammation and focus, with one caution about very high doses of green tea extract and the liver.

See all 10 biohackers →Hide the biohackers
  • Dr. Eric Berg · Niacin · recommends
    • 19 Oct 2026 · recommends · Podcast ↗
      States that expensive NAD+ supplements only turn into $5 niacin in the body and that research has shown niacin can actually raise NAD levels in the blood 5 to 8 times their baseline levels.
    • 1 Nov 2026 · Vitamin B6 · neutral · YouTube ↗
      States that vitamin B6 is needed to absorb magnesium.
    • 1 Nov 2026 · Ginger · recommends · X ↗
      Suggests that ginger is an easy addition to a daily routine that may support digestion, inflammation, and healthy blood sugar levels.
    • 17 Oct 2026 · Green Tea · neutral · Instagram ↗
      Suggests pairing green tea with lemon for better absorption.
    • 14 Oct 2026 · Ginger · recommends · YouTube ↗
      Recommends consuming ginger every single day for its benefits on digestion, inflammation, skin, blood sugar stability, and potential fat loss.
    • 11 Oct 2026 · recommends · YouTube ↗
      Recommends cheap flush niacin, stating that it outperforms expensive NAD supplements and even IV drips in raising NAD levels in the blood.
    • 10 Oct 2026 · Vitamin B6 · warns · Podcast ↗
      Dr. Berg lists pyridoxine hydrochloride as a synthetic vitamin to avoid.
    • 4 Oct 2026 · Vitamin B6 · recommends · Facebook ↗
      Recommends taking the active form of vitamin B6, pyridoxal-5-phosphate (P5P), for its benefits to the nervous system, including building the myelin sheath and protecting sensory nerve integrity.
    • 4 Oct 2026 · Vitamin B6 · neutral · X ↗
      Notes that Vitamin B6 is intimately involved in the nervous system and may be behind sciatica and carpal tunnel syndrome.
    • 2 Oct 2026 · recommends · YouTube ↗
      States that cheap niacin, which creates a flush, ends up more in the blood than expensive NAD versions, suggesting it is more effective for unhealthy individuals.
    • 2 Oct 2026 · Ginger · neutral · YouTube ↗
      Mentions ginger as a food that black cumin seed oil outperforms in reducing inflammation.
    • 27 Sep 2026 · neutral · X ↗
      Niacin is linked to several areas of physical and mental health. Studies have looked at its effects on cholesterol, the heart, liver health, schizophrenia, depression, and bipolar disorder.
    • 18 Sep 2026 · Green Tea · recommends · Instagram ↗
      Suggests incorporating anti-cancer foods like green tea to help prevent pancreatic cancer.
    • 15 Sep 2026 · Vitamin B6 · neutral · Podcast ↗
      States that high vitamin B6 levels can be linked to peripheral neuropathy.
  • Dr. Mark Hyman · Niacin · neutral
    • 30 Sep 2026 · neutral · YouTube ↗
      Explains that pellagra, which killed 100,000 Americans, was a niacin deficiency, a B vitamin.
    • 3 Nov 2026 · Ginger · uses · Instagram ↗
      Included ginger in their chicken dish as an anti-inflammatory power couple with turmeric.
    • 5 Oct 2026 · Ginger · uses · YouTube ↗
      Uses ginger in his chicken soup and a special drink because it is anti-inflammatory and helps with symptoms when feeling sick.
    • 30 Sep 2026 · Green Tea · neutral · YouTube ↗
      Mentions that EGCG from green tea activates thermogenesis, contributing to calorie burning.
    • 14 Sep 2026 · Ginger · recommends · Facebook ↗
      Recommends ginger as an anti-inflammatory powerhouse.
    • 31 Aug 2026 · Vitamin B6 · uses · YouTube ↗
      Optimized a child's nutrient status with vitamin B6, as the child had low B6 levels.
    • 29 Jul 2026 · Green Tea · uses · YouTube ↗
      States he was using green tea to stimulate the NRF2 pathway and open up detox.
    • 21 Jul 2026 · Ginger · uses · Instagram ↗
      Dr. Mark Hyman designed 'The World's Smartest Smoothie' using organic ingredients, including Organic Ginger juice.
    • 29 Jun 2026 · Vitamin B6 · recommends · Facebook ↗
      Recommends vitamin B6 with folate and B12 as supplements with strong evidence for PMS.
    • 3 Jun 2026 · Vitamin B6 · neutral · YouTube ↗
      Believes that if functional testing is done to replete deficiencies like vitamin D and B12 before someone stops their medication, withdrawal symptoms can be completely eliminated.
    • 27 May 2026 · Ginger · neutral · YouTube ↗
      Mentions that Paleovalley's turmeric complex includes organic ginger.
    • 29 Apr 2026 · Green Tea · neutral · YouTube ↗
      Mentions that green tea has super beneficial effects on Akkermansia muciniphila, a keystone species that protects the gut lining, prevents leaky gut, reduces inflammation, and helps metabolic health.
    • 11 Apr 2026 · Ginger · uses · Facebook ↗
      Includes ginger in their smoothie for anti-inflammatory support.
    • 22 Jan 2026 · Ginger · recommends · Facebook ↗
      Recommends the Orange Ginger Salmon en Papilotte recipe, stating it is good and easy to make.
  • Ben Greenfield · L-Carnitine · recommends
    • 19 Sep 2026 · recommends · YouTube ↗
      Recommends L-carnitine for male fertility, explaining that it helps shuttle fatty acids into mitochondria, assisting with beta-oxidation, and its concentration in sperm correlates with sperm motility.
    • 29 Oct 2026 · Ginger · warns · YouTube ↗
      Advises patients to stop ginger before surgery because it can act as a med or antiplatelet agent.
    • 19 Sep 2026 · neutral · Podcast ↗
      He mentions L-carnitine as a supplement with real human data behind it for male fertility.
    • 8 Sep 2026 · recommends · X ↗
      Recommends L-carnitine at 1-3 grams per day for at least 30 days pre-conception to improve mitochondrial function tied to sperm quality.
    • 29 Aug 2026 · Niacin · neutral · YouTube ↗
      States that Nrf2 activators, when combined with something like niacin, may have a good effect on plaque progression.
    • 20 Aug 2026 · Green Tea · uses · YouTube ↗
      Drinks green tea in the morning as part of her quiet time.
    • 23 May 2026 · Ginger · recommends · YouTube ↗
      Recommends root spices like ginger for use on the AIP diet.
    • 25 Apr 2026 · Niacin · neutral · YouTube ↗
      Mentions nicotinamide as an ingredient found in many NAD products and notes that niacinamide and nicotinamide are structurally the same.
    • 25 Apr 2026 · Green Tea · uses · YouTube ↗
      States that Nuchido Time Plus includes green tea extract for its high level of EGCG, which inhibits the methylating enzyme NNMT, ensuring nicotinamide is recycled rather than excreted.
    • 18 Apr 2026 · Niacin · recommends · X ↗
      Believes the niacinamide approach, along with the NAMPT/salvage pathway angle, is underrated and deserves more attention.
    • 26 Mar 2026 · Green Tea · recommends · YouTube ↗
      Suggests that one could do a carnivore diet and still have a cup of green tea in the morning to introduce hormetic stressors.
    • 8 Jan 2026 · Niacin · neutral · YouTube ↗
      Mentions niacin as a natural approach that might be good for plaque regression.
    • 20 Nov 2025 · recommends · Facebook ↗
      Recommends MitoQ +Heart, a Mitoquinol-enhanced blend with L-Carnitine, Magnesium, and Vitamin D3 for cardiovascular and energy support.
    • 13 Nov 2025 · recommends · YouTube ↗
      States that acetyl L-carnitine is very important as a transport molecule that facilitates the entry of fatty acids into the mitochondrial chain, which can produce 100 ATP per molecule.
  • Dr. Rhonda Patrick · L-Carnitine · neutral
    • 7 Sep 2026 · neutral · YouTube ↗
      Discusses L-carnitine's role as a transporter for fatty acids into mitochondria for energy, its role in detoxifying metabolites, and its involvement in stabilizing cell membranes and ketone production. They mention studies showing it helps increase muscle mass and improve cognitive function in women, and meta-analyses showing reductions in body weight, waist size, and body fat in overweight and obese individuals.
    • 9 Jul 2026 · Ginger · uses · Instagram ↗
      Likes adding ginger to bone broth for flavor, warmth, and its anti-inflammatory compounds.
    • 12 Jun 2024 · Ginger · uses · YouTube ↗
      Takes a ginger capsule, which seems to improve his digestion.
    • 28 Apr 2022 · uses · YouTube ↗
      Takes acetyl-L-carnitine in the morning, believing it is beneficial with the ketogenic diet and can help boost ketosis, as people on a ketogenic diet can be deficient in carnitine.
    • 28 Jan 2020 · Niacin · neutral · YouTube ↗
      States that NAD can be synthesized from the three forms of niacin, also known as vitamin B3, found in foods like lean meats, legumes, and veggies.
    • 19 Mar 2015 · Vitamin B6 · recommends · YouTube ↗
      Dr. Patrick states that people with a specific gene polymorphism in the NPF3 gene, which affects vitamin B6 levels, may need to increase their dietary intake of B6 and/or supplement with vitamin B6.
    • 22 Jun 2014 · Vitamin B6 · recommends · YouTube ↗
      Vitamin B6 can suppress the production of Advanced Glycation End products.
    • 4 Sep 2013 · Green Tea · neutral · YouTube ↗
      Dr. Patrick mentions that catechins and polyphenols are found in things like green tea, dark chocolate, turmeric, blueberries, and other purple pigmented fruits and vegetables, as well as red wine.
    • Date not recorded · neutral · Website ↗
      L-carnitine is important for transporting fatty acids into the mitochondria for energy and plays a role in detoxifying potentially toxic metabolites. Supplementation in the range of 1 to 4 g a day along with carbohydrates has shown benefits in muscle mass, cognitive function, and reductions in body weight and waist size in overweight and/or obese individuals.
    • Date not recorded · neutral · Website ↗
      She thinks it would be useful to add acetyl-L-carnitine to her alpha-lipoic acid for mitochondrial benefits, but it's not high on her list because she eats a lot of meat, which is high in carnitine.
    • Date not recorded · neutral · Website ↗
      Dr. Rhonda Patrick reviews how L-carnitine affects mitochondrial energy metabolism.
    • Date not recorded · Ginger · uses · Website ↗
      Tim Ferriss consumes ginger with turmeric and black pepper in tea to counteract unnecessary inflammation.
    • Date not recorded · Vitamin B6 · neutral · Website ↗
      Dr. Rhonda Patrick explores high-dose vitamin B6.
    • Date not recorded · Vitamin B6 · neutral · Website ↗
      Notes that very high doses of vitamin B6 can overcome a specific mutation in the ornithine aminotransferase enzyme, preventing progressive blindness.
  • Thomas DeLauer · Niacin · uses
    • 5 Sep 2026 · uses · YouTube ↗
      Uses niacin as part of their detoxification protocol, taking enough to flush about half an hour before a sauna session.
    • 4 Nov 2026 · Green Tea · uses · YouTube ↗
      Or, I'll just go to something much lower caffeine. Like, I'll sip on green tea. I put a link down below for Peak Matcha. So, Peak Tea is really good quality tea.
    • 30 Oct 2026 · Green Tea · uses · YouTube ↗
      Now rotates green tea with coffee, having green tea for two days, then coffee for two days, to maintain energy and benefit from different antioxidant profiles. He previously focused too much on green tea and neglected coffee.
    • 29 Oct 2026 · Green Tea · uses · YouTube ↗
      Combines MCT oil with matcha green tea in a cognitive cocktail, finding that green tea provides more mental benefits than coffee for focus and calm energy.
    • 16 Oct 2026 · Green Tea · recommends · Facebook ↗
      Explains that green tea's catechin benefits often diminish in the intestines, with less than 20% surviving digestion, but adding citrus can reclaim these benefits by about 5x.
    • 16 Oct 2026 · Green Tea · recommends · Facebook ↗
      Recommends adding citrus, specifically lemon, to green tea to reclaim the benefits of catechins, as it can leave 80% of them intact.
    • 16 Oct 2026 · Ginger · neutral · YouTube ↗
      Mentions that Dose Daily contains organic ginger root powder.
    • 4 Oct 2026 · Ginger · uses · YouTube ↗
      Uses ginger oil, an ingredient in Curcumin Gold, stating it helps modulate inflammation within the gut.
    • 11 Sep 2026 · Green Tea · recommends · YouTube ↗
      Recommends sipping green tea while walking fasted in the morning to help extend the fat oxidation window.
    • 31 Aug 2026 · Green Tea · recommends · YouTube ↗
      Recommends one to three small cups of green tea, ideally in the morning, as consistent consumption over two to three weeks increases BDNF due to EGCG.
    • 15 Aug 2026 · Green Tea · recommends · YouTube ↗
      Recommends switching to a good quality green tea first thing in the morning because it is lower in caffeine and contains theanine, which has a cortisol-blunting effect, balancing out the stimulation.
    • 11 Aug 2026 · Green Tea · recommends · Instagram ↗
      Recommends green tea, mentioning its EGCG content.
    • 10 Aug 2026 · Green Tea · uses · Instagram ↗
      Would want green tea for its EGCG, which is a good antioxidant, especially for managing stress.
    • 9 Aug 2026 · Ginger · recommends · YouTube ↗
      Recommends ginger, explaining that it contains components that allow GLUT4 receptors to disperse more heavily throughout a cell, which helps absorb glucose and reduces blood sugar.
  • Andrew Huberman · L-Carnitine · recommends
    • 27 Jul 2026 · recommends · YouTube ↗
      Andrew Huberman, based on discussions with fertility doctors, recommends L-carnitine for patients trying to increase fertility, egg quality, or sperm quality, noting it can be taken orally in higher dosages like 500 or 750 milligrams a day, or via injectable form.
    • 28 Sep 2026 · Green Tea · uses · YouTube ↗
      Drinks green tea and believes it has very positive cognitive benefits in terms of focus.
    • 28 Sep 2026 · Ginger · neutral · YouTube ↗
      Discusses a study where people who had taken powdered ginger were less judgmental because their stomachs were calmed, noting that ginger calms the stomach.
    • 13 Jul 2026 · Green Tea · uses · X ↗
      Uses Athletic Greens AG1 in the morning for gut health.
    • 10 Jun 2026 · Ginger · neutral · Facebook ↗
      Asks if ginger can increase metabolism and states that apparently, it can.
    • 8 Jun 2026 · Ginger · neutral · YouTube ↗
      Conducted a study on ginger powder dissolved in warm water, which significantly elevated the thermic effect of food over a 6-hour period, suggesting it could boost energy expenditure.
    • 14 May 2026 · recommends · Podcast ↗
      He shares science-based tools for modulating aggression, including supplementation with acetyl-L-carnitine.
    • 14 May 2026 · neutral · YouTube ↗
      Discusses a study showing that acetyl-L-carnitine supplementation significantly improved symptoms of ADHD, including reductions in aggressive behavior, attentional problems, and delinquency.
    • 13 Apr 2026 · recommends · YouTube ↗
      Recommends L-carnitine for sperm health.
    • 23 Mar 2026 · uses · YouTube ↗
      Has started experimenting with L-carnitine in an injectable form, taking a much lower milligram count than oral doses, to avoid absorption issues and concerns about increased TMAO from oral intake. They acknowledge its benefits for mitochondrial health.
    • 19 Jun 2025 · neutral · Podcast ↗
      Mentions Acetyl-L-carnitine in the context of whole body pain.
    • 5 Jun 2025 · Ginger · recommends · YouTube ↗
      States that there are good, unbiased peer-reviewed studies showing that 1 to 3 grams of ginger can cause a notable reduction in nausea.
    • 29 Jul 2024 · Green Tea · uses · YouTube ↗
      Takes a couple of green tea capsules in the morning.
    • 29 Jul 2024 · Vitamin B6 · warns · YouTube ↗
      Does not supplement B6 due to evidence that overs-supplementing vitamin B, especially B6, is problematic because of peripheral nerve damage.
  • Dave Asprey · Niacin · recommends
    • 25 Jul 2026 · recommends · YouTube ↗
      Recommends niacin, a form of vitamin B3, as one of the two most important raw materials for NAD+ production, found in foods like beef liver, chicken, turkey, and fish, or from supplements.
    • 9 Sep 2026 · Green Tea · warns · YouTube ↗
      Warns that very high doses of EGCG or green tea extract could cause harm to the liver.
    • 6 Jul 2026 · Ginger · recommends · Instagram ↗
      Recommends ginger as a midwife remedy to help with nausea during pregnancy.
    • 30 May 2026 · recommends · YouTube ↗
      Dave Asprey recommends niacin, a form of vitamin B3, as one of the two most important raw materials for NAD+ production, found in foods like beef liver, chicken, turkey, and fish.
    • 15 May 2026 · neutral · X ↗
      Notes that niacin has been a standard longevity ingredient since the 1990s.
    • 5 May 2026 · Green Tea · neutral · YouTube ↗
      Mentions green tea as a source of EGCG but notes it also contains oxalates.
    • 17 Feb 2026 · neutral · Podcast ↗
      Dave discusses how niacinamide compares as an NAD precursor.
    • 17 Feb 2026 · neutral · YouTube ↗
      Dave explains that niacinamide is an old-school way to mildly elevate NAD levels, and it was the only way to raise NAD in the very early days.
    • 17 Feb 2026 · Green Tea · warns · YouTube ↗
      Warns that green tea depletes folic acid and may not be advisable during pregnancy, or at least should be taken with folic acid.
    • 10 Feb 2026 · stopped · YouTube ↗
      Used niacin for a while to address plaque in his arteries and high LP(a), but stopped because it caused high liver values and made him feel unwell, despite dropping his LP(a).
    • 1 Jan 2026 · Vitamin B6 · neutral · YouTube ↗
      Mentions Vitamin B6 as playing a role in methylation pathways.
    • 30 Dec 2025 · Green Tea · warns · YouTube ↗
      Mentions that green tea contains oxalate, though it is lower than black tea and matcha.
    • 16 Dec 2025 · L-Carnitine · recommends · YouTube ↗
      States that L-Carnitine shows changes happening in fertility.
    • 10 Oct 2025 · L-Carnitine · neutral · YouTube ↗
      Mentions that Acetyl-L-Carnitine is usually a good mitochondrial enhancer, but not everyone needs it.
  • Siim Land · Niacin · recommends
    • 15 Feb 2026 · recommends · TikTok ↗
      Suggests that in the mornings, NAD supplements like niacinamide can help kickstart the circadian rhythm.
    • 31 Oct 2026 · Green Tea · recommends · Instagram ↗
      States that green tea is very effective for visceral fat loss due to its polyphenol content.
    • 27 Oct 2026 · Green Tea · uses · Instagram ↗
      Personally drinks 2 cups of green tea a day and made it one of the small changes while reducing his visceral fat.
    • 19 Oct 2026 · Green Tea · neutral · YouTube ↗
      Mentions that green tea's EGCG has stimulated autophagy in cultured liver cells and mouse experiments by increasing AMPK.
    • 11 Oct 2026 · Green Tea · uses · YouTube ↗
      Consumed more polyphenol-rich foods, including green tea, to reduce visceral fat.
    • 30 Sep 2026 · Green Tea · uses · YouTube ↗
      Mentions that he drank green tea, which targets visceral fat, as one of the things he did to reduce visceral fat.
    • 26 Sep 2026 · Green Tea · uses · X ↗
      Drinks 1-3 cups of green tea a day, noting that there are multiple lines of evidence suggesting it improves various health markers and may have longevity benefits.
    • 26 Sep 2026 · Green Tea · recommends · X ↗
      States that green tea is one of the healthiest beverages in the world, improving cardiovascular disease risk factors, heart health, metabolic health markers, targeting all hallmarks of aging, reducing visceral fat, and being associated with lower mortality.
    • 25 Sep 2026 · Green Tea · uses · YouTube ↗
      When dropping his visceral fat, Siim Land drank around one to three cups of green tea per day, usually in the morning and before exercise, and believes it contributed to visceral fat loss.
    • 7 Aug 2026 · Ginger · neutral · YouTube ↗
      Mentions ginger as a compound that can increase autophagy, but notes it doesn't come close to exercise in effectiveness.
    • 30 Jul 2026 · Green Tea · uses · Instagram ↗
      Drank 2–3 cups of green tea per day to reduce visceral fat.
    • 28 Jul 2026 · Green Tea · uses · X ↗
      Reduced visceral fat by adding 2 cups of green tea per day.
    • 12 Jun 2026 · Ginger · recommends · YouTube ↗
      States that ginger lowers body weight in people who are overweight or have high inflammation.
    • 13 May 2026 · Ginger · recommends · YouTube ↗
      Recommends having ginger tea in the evening as it has autophagy-regulating effects.
  • Peter Attia · Niacin · uses
    • 29 Jun 2025 · uses · YouTube ↗
      Peter Attia's AVIA Skincare vitamin C serum also contains niacinamide, which is useful to apply to the skin right after washing.
    • 3 Mar 2024 · L-Carnitine · warns · YouTube ↗
      Discusses L-carnitine, noting that people inject it for fat loss and to get more out of testosterone input, but warns against injecting it due to potential contamination from homebrewing or even compounding pharmacies, which have had issues leading to deaths.
    • 26 Feb 2024 · L-Carnitine · warns · YouTube ↗
      Warns that injecting L-carnitine, especially if home-brewed, is a bad idea due to sterilization concerns and potential for contamination, which can lead to serious health issues.
    • 26 Feb 2024 · L-Carnitine · neutral · Podcast ↗
      Derek explores L-carnitine as a fat loss supplement.
    • 30 Jan 2023 · stopped · YouTube ↗
      Used to prescribe niacin to many patients, primarily to raise HDL, lower APO B, triglycerides, LDL, and LP(a), but stopped after clinical trials showed minimal or disappointing effects on reducing cardiovascular events.
    • 7 Nov 2022 · stopped · YouTube ↗
      Notes that niacin lowers LP little a but was not shown to have clinical benefit in outcome studies, and they are not currently using it.
    • 1 Aug 2022 · neutral · YouTube ↗
      Recalls that a flush from niacin typically occurred with doses of a few grams.
    • 13 Jun 2022 · warns · YouTube ↗
      Explains that niacin does reduce Lp(a) levels, increase HDL, and lower triglycerides, but two large cardiovascular outcome trials have shown no cardiovascular benefits and many side effects, such as flushing. He concludes that the cost-to-benefit ratio does not support its use.
    • 13 Jun 2022 · neutral · Podcast ↗
      He dives into data on the possible treatments for lowering Lp(a) such niacin, meds, and PCSK9 inhibitors.
    • 8 Feb 2021 · Green Tea · neutral · YouTube ↗
      Explains that green tea extract was tested due to popular reputation and traditional medicine claims, but it did not extend the lifespan of animals in their studies.
    • 21 Sep 2020 · warns · YouTube ↗
      States that niacin is a dead drug and is not recommended by any guidelines, though some still selectively use it for Lp(a).
    • 13 Jan 2020 · warns · YouTube ↗
      Warns against taking high doses of nicotinamide (a form of niacin/vitamin B3) because it is an effective inhibitor of sirtuins, which are enzymes one wants to keep active for the purpose of raising NAD.
    • 1 Jan 2020 · warns · YouTube ↗
      Peter Atia notes that some people still argue niacin makes sense because it lowers LP little-a, but he advises against it, stating that it has a weak lowering effect of about 20% and that he knows many lipidologists who would not use it.
    • 1 Jan 2020 · stopped · YouTube ↗
      Warns against niacin, stating that it causes acanthosis nigricans, worsens insulin resistance, and has numerous other side effects, despite lowering apoB. He recounts a patient who experienced a severe pruritic reaction, thinking he was going to die.
  • Bryan Johnson · Niacin · recommends
    • Date not recorded · recommends · Website ↗
      Recommends Niacinamide as a supplement for skin health, noting it is in the Blueprint stack.
    • 7 Mar 2026 · Green Tea · uses · X ↗
      Takes Athletic Greens AG1 in the morning for gut health.
    • 2 Jul 2024 · Ginger · uses · YouTube ↗
      Includes three capsules of Ginger in his Blueprint stack.
    • 9 Dec 2023 · Ginger · uses · YouTube ↗
      Includes 3g of ginger in his Super Veggie for a variety of benefits including liver, pancreas, artery health, and digestion.
    • 27 Jul 2023 · Ginger · uses · YouTube ↗
      Includes ginger in his Super Veggie meal, which he eats at 7 AM.
    • 25 Jan 2023 · Ginger · uses · YouTube ↗
      Includes ginger in his daily 'Super Veggie' breakfast for its nutrient density.
    • Date not recorded · uses · Website ↗
      He uses Niacinamide, found in serums or moisturizers, morning and night, and takes 15 mg in Blueprint Essential Capsules.
    • Date not recorded · Ginger · uses · Source ↗
      Uses ginger in his Super Veggies.

RAL Summary

Members OnlyTier 3 for Regularity: Long-Term Relief

The tier rests on niacin, a trace vitamin in this product, and on two diet surveys rather than supplement trials, while the main ingredient, L-carnitine, has only small studies in people with specific medical conditions. So it is graded Tier 3, lower than the rules alone gave.

Where the evidence disagrees: 5 of the 21 human studies found no effect.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Digestive system

Combine with: Combine with a healthy diet and lifestyle.

Possible side effects: Heartburn was reported in 10 of 25 people taking a drink with vitamin B6, fiber and menthol; no other major side effects were reported in the studies, and no written reviews were read.

Supplement Facts

Carbohydrates 3 g · Niacin 20 mg · Pantothenic Acid 10 mg
Supplement Facts
Serving Size 1 Tbsp
Servings Per Container 26
Amount Per Serving% Daily Value
Calories10
Carbohydrates3 g†
Niacin20 mg
Pantothenic Acid10 mg
Vitamin B62 mg
Ginger root extract100 mg†
Green Tea extract100 mg†
L-Carnitine1,000 mg†
† Daily Value not established.

Other ingredients: Purified Water, glucono-delta-lactone, Glycerin, Citric Acid, Natural flavors, Potassium Sorbate, sodium hexametaphosphate, Stevia leaf extract, Sucralose, Sodium Benzoate, Acesulfame Potassium.

Directions: Suggested Use - Take one tablespoon (15 mL) daily. May be consumed any time of the day. Shake well before using.

Barcode (UPC) 858695002706 · Label source: NIH label database · Report a label change

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The Beauty Trim Liquid L-Carnitine Wild Cherry Flavor label, 400 mL
Liquid L-Carnitine Wild Cherry Flavor, 400 mL

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Graded November 15, 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.