Doctor Morse's Healing Herbs Ashwagandha Tincture Review

Ashwagandha Tincture by Doctor Morse's Healing Herbs is a single-ingredient botanical supplement in liquid form, listed in the NIH Dietary Supplement Label Database with a label dated August 22, 2025. Each serving of 2 dropperfuls provides 1.6 mL of ashwagandha, its one active ingredient. The other ingredients are water, distilled, and alcohol. The label reports 36 servings per container and a net content of 2 ounces (59 mL). The label's suggested use for adults is 2 dropperfuls in water or juice three times a day. The label presents the product for hormone health and states it is made in the USA with global ingredients. The FDA disclaimer appears on the label, and the product is identified as a dietary supplement. The page describes ashwagandha as an Ayurvedic herb most often taken for stress, anxiety, and sleep, and says the evidence is still limited. Research grades for its ingredient are Possibly Effective for insomnia, stress, and generalized anxiety disorder, while the evidence for the label's hormone health use is not established. Common reported side effects include upset stomach, nausea, diarrhea, drowsiness, and headache. Rare but serious effects include liver problems and possible changes in thyroid function. Pregnancy and breastfeeding are rated insufficient reliable information, and the page advises avoiding use during pregnancy and breastfeeding. The page lists possible interactions with hepatotoxic drugs, CNS depressants, meds, meds, thyroid hormone, and immunosuppressants. The label warns to consult a healthcare provider before use, not to use if pregnant or nursing, and it is not intended for anyone under 18. The manufacturer is listed as Western Botanicals FL LLC in Spanish Fork, Utah.

Product Focus: Adrenal SupportAlso covers:HormonesBrain
Tier ⓘ
Tier 4 · Rank 8
Tier 4 · Emerging. A promising mechanism or animal data, with thin human evidence so far. Rank 8 within Tier 4 for Adrenal Support; 21 of 23 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
59 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
90% of 952
Biohacker Mentions
9 of 10

Study, Trial or Testing Result Summary

Members Only28 human studies · 25 improved
28 human studies25 improved4,630 people studied

Ashwagandha has strong human study support for lowering the stress hormone cortisol. A review pooling 23 placebo-controlled trials with 1706 adults found ashwagandha lowered cortisol compared with placebo [1]. A review of nine trials with 558 people found lower cortisol, stress and anxiety [2]. Another review of 488 people found cortisol fell, but stress scores did not change significantly [3]. In one trial, 141 stressed adults taking 600 mg a day for 8 weeks had lower cortisol, stress and anxiety than those on placebo [4]. In another, 130 stressed adults taking 300 mg a day for 90 days had lower stress and cortisol and better sleep [5]. Over 12 months in 191 adults, cortisol fell and no serious safety problems appeared [6]. Doses as low as 125 mg a day reduced stress in 8 to 12 week trials. One review noted that no trial directly tested adrenal gland function. This product is a liquid tincture measured in milliliters, and its ashwagandha strength is not stated, so it is unclear whether a serving matches the doses of dried extract used in these studies. Animal and cell studies are never counted.

See all 28 studies →Hide the studies

Review Totals and Summary

Members Only952 reviews · 90% positive
952 reviews · Google Shopping 952
90% positive0% neutral10% negative

I could not find a body of reviews written specifically about the Ashwagandha tincture. The reviews I could reach were brand-level, so this summary draws on those and says where it is inferring. The brand page on PureFormulas shows roughly 4.89 stars across 612 reviews for the Doctor Morse line, but that score is not specific to this product. Across Doctor Morse's tinctures, customers tend to value the idea of a whole-herb, plant-based liquid made by a long-established herbal brand. They like that it fits into a daily routine and that the drops are easy to take, and they often describe taking it with water or juice. For ashwagandha in particular, the benefits people typically report across liquid ashwagandha products are feeling calmer, handling daily stress better and sleeping more soundly. Some users say the effect builds gradually over a few weeks rather than showing up right away. Others notice little change, which is common for adaptogens, where results vary from person to person. The complaints that recur with herbal tinctures are fairly consistent. Many people find the earthy, bitter, sometimes pungent flavor hard to take. The honey and glycerin base helps, but some users dilute the drops or chase them with a drink. The price is another theme. A 2 oz bottle at about $30 is seen as costly next to ashwagandha capsules, including the brand's own $15 capsule option. Some reviewers also say a bottle runs out quickly at the dosing the label suggests, which weight-based dosing charts make more likely for larger adults. A smaller group mentions the trace alcohol, or says they feel drowsy or a bit sluggish, while others worry about possible interactions with medication. Shoppers who value transparency also ask for clearer third-party testing and for exact ashwagandha strength on the label. Overall, satisfied customers praise the gentle, gradual calming effect and the convenience of a liquid format. Critics point to the taste, the price per serving and inconsistent results. Because product-level review volume is thin, treat these themes as indicative rather than definitive. Check the retailer's own product page for current verified reviews before buying.

Biohacker Summary

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

Most of the panel recommends or uses ashwagandha, with five recommending it, three staying neutral, and one saying he uses it, mainly to lower stress hormone levels, improve sleep, and ease anxiety. Several also mention raising testosterone, and a few prefer standardized extracts such as patented, withanolide-standardized forms. Doses mentioned are 250 mg a day, 400 to 600 mg, and a wider range of 120 to 1,000 mg taken for at least six weeks, and some take it at night or late in the day. Several advise cycling it, including a two-week break after two weeks of use, and cautions include emotional numbing, feeling weird, irritability in women, avoiding it with low cortisol, and one person who called the data weak. One panelist stopped after it caused a mouth sore.

See all 10 biohackers →Hide the biohackers
  • Dr. Mark Hyman · Ashwagandha · recommends
    • 23 Oct 2026 · recommends · Facebook ↗
      Lists ashwagandha as an herb that can help lower anxiety or depression symptoms.
    • 11 Mar 2026 · neutral · YouTube ↗
      Notes that there was a recent study on ashwagandha for sperm health, indicating it's an evolving area of research.
    • 5 Feb 2025 · recommends · YouTube ↗
      Suggests trying ashwagandha, noting that some people respond to it, and recommends a dose of 400 to 600 mg.
    • 15 Nov 2024 · recommends · YouTube ↗
      Recommends adaptogenic herbs like ashwagandha, particularly at night, rhodiola, lemon balm, and catclaw for stress relief.
    • 1 Nov 2024 · recommends · YouTube ↗
      Recommends ashwagandha at night as an adaptogen to help with high cortisol and promote sleep for those who are tired and wired.
    • 25 Sep 2024 · recommends · YouTube ↗
      Recommends ashwagandha, stating it can help convert T4 to T3, but advises ensuring a clear source and monitoring liver enzymes.
    • 26 Jul 2024 · recommends · YouTube ↗
      Suggests adaptogens like rhodiola, ashwagandha, ginseng, and Siberian ginseng can be helpful for actively managing stress.
    • 12 Jun 2024 · uses · YouTube ↗
      States that Mosh protein bars contain ashwagandha to support a healthy brain.
    • 1 Mar 2024 · recommends · YouTube ↗
      Recommends adaptogens like Ashwagandha if one has a lot of stress.
    • 21 Feb 2024 · recommends · YouTube ↗
      States that ashwagandha can stimulate osteoblasts, which helps with bone building, especially for those with a genetic predisposition to low bone density.
  • Dr. Eric Berg · Ashwagandha · recommends
    • 8 Oct 2026 · recommends · YouTube ↗
      Recommends ashwagandha, suggesting 250 milligrams per day over time to increase stress tolerance and help the cortisol receptor.
    • 4 Sep 2026 · neutral · X ↗
      Rates Ashwagandha on a scale from 1 to 10.
    • 26 Jun 2026 · recommends · YouTube ↗
      Lists ashwagandha as one of the best ways to lower luteinizing hormone, which goes too high as people age and is related to dementia.
    • 5 May 2026 · neutral · YouTube ↗
      Notes that some people take ashwagandha or other adaptogens to help calm them down when they assume their problem is cortisol, and sometimes it works.
    • 27 Apr 2026 · recommends · YouTube ↗
      States that taking ashwagandha on a regular basis can greatly help the adrenals.
    • 12 Jan 2026 · recommends · Podcast ↗
      Recommends Ashwagandha to help make the process of quitting coffee smoother.
    • 8 Jan 2026 · recommends · YouTube ↗
      Recommends taking adaptogens like ashwagandha for super powerful and real energy inputs without artificial side effects.
    • 25 Sep 2025 · recommends · Podcast ↗
      Recommends Ashwagandha to help sleep through the night.
    • 20 Sep 2025 · recommends · YouTube ↗
      Recommends taking Ashwagandha in the evening before bed as a remedy for problems with elevated cortisol around 2 AM, when cortisol should be at its lowest point.
    • 16 May 2025 · recommends · Podcast ↗
      Recommends trying ashwagandha to lower stress levels.
  • Siim Land · Ashwagandha · recommends
    • 7 Oct 2026 · recommends · Instagram ↗
      Recommends Ashwagandha for stress, sleep and performance, based primarily on human research, especially randomized controlled trials showing measurable benefits.
    • 6 Oct 2026 · neutral · X ↗
      Lists Ashwagandha as one of 15 supplements backed by human studies.
    • 6 Sep 2026 · neutral · X ↗
      Notes that Ashwagandha is one of several supplements with human evidence.
    • 7 Jul 2026 · neutral · YouTube ↗
      States that ashwagandha, unless contaminated, is not going to raise liver enzymes.
    • 4 Jul 2026 · stopped · YouTube ↗
      Stopped taking ashwagandha because it immediately caused a mouth sore.
    • 12 Jun 2026 · recommends · YouTube ↗
      States that ashwagandha consistently reduces stress and anxiety in randomized controlled trials.
    • 5 Jun 2026 · neutral · Instagram ↗
      States that Ashwagandha helps with testosterone primarily in stressed out or poor sleeping people.
    • 30 Mar 2026 · recommends · YouTube ↗
      States that ashwagandha has strong evidence for increasing testosterone, mostly in stressed or infertile men.
    • 5 Jan 2026 · warns · YouTube ↗
      Mentions ashwagandha as an example of a testosterone-boosting supplement he has no interest in taking.
    • 28 Dec 2025 · recommends · YouTube ↗
      Places Ashwagandha, specifically the KSM66 form, in the 'god tier' due to extensive research supporting its benefits for stress, sleep, testosterone production, estrogen, and even V2 max, while personally not experiencing any negative side effects some people report.
  • Thomas DeLauer · Ashwagandha · recommends
    • 3 Oct 2026 · recommends · YouTube ↗
      Recommends ashwagandha extract, noting a study where 57 overweight men over 40 saw a 14.7% increase in testosterone and an 18% increase in DHEA over 16 weeks, suggesting it removes the cortisol block suppressing the entire hormonal cascade.
    • 2 Sep 2026 · recommends · YouTube ↗
      Mentions ashwagandha as part of a full testosterone protocol, supporting production through different pathways.
    • 14 Mar 2026 · recommends · Facebook ↗
      Recommends ashwagandha, noting it modulates the HPA axis and dropped cortisol by approximately 23% in 60 days, but advises cycling it, especially if feeling emotionally numb.
    • 14 Jan 2026 · warns · YouTube ↗
      Cautions against Ashwagandha due to its potential for emotional numbing effects.
    • 17 Sep 2025 · recommends · YouTube ↗
      Suggests ashwagandha at night to help regulate cortisol, but advises playing around with it as some people find it makes them feel weird.
    • 23 Aug 2025 · recommends · YouTube ↗
      Recommends Ashwagandha, Rhodiola, and Ginseng as adaptogens to help the body adapt to stress, bring cortisol levels back to homeostasis, and support heat shock proteins and stress chaperoning pathways, especially when in a caloric deficit.
    • 26 May 2025 · recommends · YouTube ↗
      Recommends Ashwagandha in the evening time for its anti-cortisol effect, helping to regulate cortisol for better balance in the morning.
    • 5 Apr 2025 · recommends · YouTube ↗
      Recommends ashwagandha as an adaptogen with a profound effect on cortisol, acknowledging that it can make some people feel numb but may still be helpful.
    • 28 Mar 2025 · neutral · YouTube ↗
      Discusses Ashwagandha as an adaptogen with quite a bit of evidence for various benefits like cognitive ability, stress, stamina, cardiovascular benefits, and lipid panels. He notes that long-term use might lead to a level of tolerance or an apathetic sense, suggesting it should be used when sincerely needed.
    • 23 Jan 2025 · recommends · YouTube ↗
      Recommends Ashwagandha to help regulate oxidative stress.
  • Ben Greenfield · Ashwagandha · neutral
    • 23 Sep 2026 · neutral · X ↗
      Ashwagandha, taken as 120–1,000 mg for at least 6 weeks, with most studies providing a dose of 400–600 mg/d, can lower cortisol levels, improve sleep quality, and enhance cognitive resilience for athletes during challenging phases consisting of high-volume resistance training.
    • 30 Jun 2026 · neutral · Instagram ↗
      Notes that ashwagandha is an ingredient in MTE.
    • 5 Jun 2026 · neutral · TikTok ↗
      Mentions Ashwagandha as a supplement people cycle through when still sleeping poorly, suggesting it might not be addressing the true sleep problem.
    • 23 May 2026 · neutral · YouTube ↗
      Notes that ashwagandha is a nightshade herb, but it is taken as a supplement and not used for cooking.
    • 23 Dec 2025 · recommends · Facebook ↗
      States that Ashwagandha helps regulate stress response and steady the nervous system, influencing biological systems tied to sleep quality.
    • 11 Dec 2025 · uses · YouTube ↗
      Has found that adaptogens like ashwagandha, taken about half an hour before using the Shift Wave, seem to enhance its effects on tuning up the nervous system. He also found it helped him and his co-founder achieve slower respiratory heart rate coherence.
    • 1 Oct 2025 · uses · Facebook ↗
      Uses Ashwagandha, as part of IM8 Health, to quiet the stress response for sleep.
    • 6 Sep 2025 · neutral · YouTube ↗
      Mentions ashwagandha as an herb that has more data than fruit tree leaves.
    • 6 May 2025 · neutral · YouTube ↗
      Ben Greenfield notes that IM8 contains ashwagandha, an adaptogen, to help manage stress and support the immune system.
    • 29 Mar 2025 · uses · YouTube ↗
      Sometimes takes ashwagandha to help get back to sleep if he wakes up in the middle of the night.
  • Dave Asprey · Ashwagandha · neutral
    • 29 Aug 2026 · neutral · YouTube ↗
      Dave Asprey notes that ashwagandha, when taken as a real standardized extract at a real dose, genuinely lowers cortisol and shows effects on stress and sleep quality in randomized trials, but lacks polysomnography data.
    • 25 Jun 2026 · neutral · Podcast ↗
      Dave Asprey discusses ashwagandha as part of an adaptogen trio that works together for stress response and human performance.
    • 25 Jun 2026 · neutral · YouTube ↗
      Mentions ashwagandha as an adaptogen in MTE that helps blunt the cortisol spike.
    • 27 May 2026 · warns · YouTube ↗
      Advises against ashwagandha for low cortisol, stating that salt and water are needed instead.
    • 9 Apr 2026 · warns · YouTube ↗
      Warns that ashwagandha can raise testosterone in women, causing irritability, and therefore needs to be cycled.
    • 19 Mar 2026 · neutral · Podcast ↗
      Dave Asprey mentions ashwagandha as a supplement and cofactor that supports thyroid activation.
    • 19 Mar 2026 · recommends · YouTube ↗
      Recommends ashwagandha as a cofactor that can help thyroid function, especially with conversion issues.
    • 12 Mar 2026 · neutral · Podcast ↗
      Dave Asprey lists ashwagandha as part of a supplement stack that supports healthy hormone levels.
    • 28 Aug 2025 · neutral · YouTube ↗
      Discusses ashwagandha as a common adaptogenic herb used by biohackers to deal with stress, noting it was banned in Denmark and can cause anhidonia and reduced ability to reach orgasm at higher doses.
    • 5 Aug 2025 · warns · Podcast ↗
      The episode discusses the dangers of chronic ashwagandha use.
  • Peter Attia · Ashwagandha · neutral
    • 1 Jun 2026 · neutral · Podcast ↗
      Peter reviews the evidence for select off-label medications and supplements commonly used for sleep, including glycine, magnesium, ashwagandha, and phosphatidylserine.
    • 30 Oct 2025 · uses · YouTube ↗
      Finds ashwagandha a little bit helpful for sleep, though notes it may not be for everyone.
    • 27 Oct 2025 · neutral · YouTube ↗
      Finds ashwagandha "a little bit helpful" for sleep, but notes that it may not be for everyone.
    • 30 Mar 2025 · neutral · YouTube ↗
      Finds ashwagandha a little bit helpful for sleep, but notes it may not be for everyone.
    • 23 Mar 2025 · warns · YouTube ↗
      States that the data for ashwagandha are weak.
    • 17 Mar 2025 · neutral · Instagram ↗
      Discusses the current evidence for ashwagandha's effects on sleep, stress, and anxiety.
    • 16 Mar 2025 · neutral · YouTube ↗
      Mentions ashwagandha as an evergreen shrub historically used in traditional Indian medicine for indications such as sleep, stress, and immune health.
    • 26 Feb 2024 · neutral · YouTube ↗
      Mentions ashwagandha as something that can help with sleep in the setting of chronic stress and hypercortisolemia.
    • 24 Oct 2023 · uses · YouTube ↗
      Takes 600 mg of Solgar ashwagandha at night, having recently switched to this brand and returned to taking it after a previous hiatus.
    • 23 Oct 2023 · uses · YouTube ↗
      Takes 600 milligrams of ashwagandha at night, having recently switched to the Solgar brand and having returned to taking it after a long break.
  • Andrew Huberman · Ashwagandha · recommends
    • 14 May 2026 · recommends · Podcast ↗
      He shares science-based tools for modulating aggression, including supplementation with ashwagandha.
    • 14 May 2026 · warns · YouTube ↗
      Warns that while ashwagandha is a potent inhibitor of cortisol, chronic supplementation for longer than two weeks can disrupt other hormone and neurotransmitter pathways, so it should be used with a two-week break after two weeks of use.
    • 4 Aug 2025 · recommends · Podcast ↗
      Recommends Ashwagandha as a supplement to reduce cortisol.
    • 13 Mar 2025 · recommends · Podcast ↗
      Explains how to optimize hormone levels through supplements such as ashwagandha.
    • 13 Mar 2025 · recommends · YouTube ↗
      Mentions ashwagandha as a potent commercial compound in supplement form that can be used to reduce chronic stress, especially late in the day, by significantly decreasing cortisol.
    • 16 Jan 2025 · neutral · Podcast ↗
      Discusses Ashwagandha as a supplement to better manage stress.
    • 16 Jan 2025 · uses · YouTube ↗
      Uses ashwagandha when feeling particularly stressful to lower anxiety and cortisol, but does not take it year-round or on a regular basis.
    • 29 Jul 2024 · uses · YouTube ↗
      Takes ashwagandha for sleep.
    • 22 Jul 2024 · recommends · YouTube ↗
      Recommends Ashwagandha as a good adaptogen, but advises cycling it if taking high doses due to potential issues with liver and thyroid.
    • 15 Feb 2023 · warns · YouTube ↗
      Warns that taking ashwagandha as a prophylactic or before training is counterproductive because it blunts cortisol, which can cause immunosuppression and suppress adaptation.
  • Dr. Rhonda Patrick · Ashwagandha · recommends
    • 13 Sep 2025 · recommends · Facebook ↗
      Recommends Ashwagandha supplementation, specifically standardized for withanolides (KSM-66 at 5% or Sensoril at 10%), to indirectly boost testosterone by reducing cortisol levels, and also to improve anxiety, stress resilience, and sleep quality.
    • 9 Sep 2025 · warns · YouTube ↗
      Recommends ashwagandha, specifically patented extracts like Sensoril or KSM66 standardized to sufficient quantities of withanolides, for its indirect effect on testosterone by suppressing cortisol and stress response, which can be beneficial for anxious individuals and improve sleep.
    • 27 Aug 2024 · recommends · YouTube ↗
      Is very bullish on Ashwagandha, citing meta-analyses showing improved lean mass, strength, sleep, and stress management. He notes it also raises testosterone but not enough to explain the lean mass changes.
    • 22 Aug 2024 · neutral · Podcast ↗
      Discusses ashwagandha.
    • 27 Dec 2023 · uses · YouTube ↗
      Uses ashwagandha as a supplement to help with sleep.
    • Date not recorded · neutral · Website ↗
      Dr. Rhonda Patrick discusses curcumin & ashwagandha safety.
    • Date not recorded · uses · Website ↗
      His regular sleep supplements are glycine, ashwagandha, magnesium L-threonate, and magnesium oxide.
    • Date not recorded · neutral · Website ↗
      She mentions that Peter Attia takes 600 milligrams of ashwagandha from Solgar.
  • Bryan Johnson · Ashwagandha · uses
    • 8 Jul 2025 · uses · YouTube ↗
      Drinks his Blueprint longevity mix with additional morning supplements, including ashwagandha.
    • 5 Jun 2025 · uses · YouTube ↗
      States that Blueprint Ashwagandha can be used to stabilize mood.
    • 20 Feb 2024 · uses · YouTube ↗
      Mentions that Ashwagandha is included in the LA Longevity Mix, which condenses his 100 daily pills into a drink.
    • 7 Dec 2023 · neutral · Instagram ↗
      Mentions ashwagandha as a potential therapy that could positively influence sperm health.
    • 27 Jul 2023 · uses · YouTube ↗
      Mentions ashwagandha as an ingredient in his 'bag of goodies', indicating he uses it.
    • 21 Jun 2023 · uses · YouTube ↗
      Takes ashwagandha for anti-anxiety, improved cortisol management, improved sleep, and increased testosterone.
    • Date not recorded · uses · Website ↗
      Uses Ashwagandha + Rhodiola for energy and stress support.
    • Date not recorded · warns · Website ↗
      Recommends Ashwagandha during the luteal phase to help reduce stress, balance hormones, reduce PMS related fatigue, and combat water retention and bloating, and also for stress and mood management in perimenopausal and menopausal women.
    • Date not recorded · uses · Website ↗
      Lists "Ashwagandha + Rhodiola" with "120mg" as part of his supplements, implying its use.
    • Date not recorded · recommends · Source ↗
      During menopause, Bryan Johnson recommends adding ashwagandha based on individual needs.

RAL Summary

Members OnlyTier 4 for Adrenal Support

The review summary says no reviews specific to this ashwagandha tincture were found and draws on brand-level reviews of the whole Doctor Morse line, including a honey and glycerin base this water and alcohol tincture does not list, so the reviews are not about this product. Its reviews are set aside, so it is graded on its studies alone. Human studies support Ashwagandha (25 of 28 human studies showed an improvement), but there are not yet enough reviews to confirm it (0).

  • Emerging: not enough evidence to rank higher yet.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Endocrine system, Nervous system

Combine with: Ashwagandha (Withania somnifera) is an adaptogen that has been shown in human trials to help modulate the HPA axis and lower serum cortisol and perceived stress, which makes it a logical fit for adrenal support. To build on this, consider pairing it with Rhodiola rosea for fatigue resilience, Holy Basil (Tulsi) for additional cortisol balance, and Eleuthero or Panax ginseng for daytime energy. Nutrient cofactors that support adrenal hormone synthesis and stress response include vitamin C, pantothenic acid (B5), and a B-complex with active B6 and B12, plus magnesium glycinate for nervous system calm and sleep quality. Phosphatidylserine can help blunt exaggerated evening cortisol, and L-theanine adds calm focus without sedation. Because ashwagandha can stimulate thyroid hormone output and may interact with thyroid, sedative, immunosuppressant, and meds, people with thyroid conditions or on these drugs, and those who are pregnant, should consult a healthcare provider before use. Tinctures are typically taken in the morning or split between morning and early evening, and the alcohol base should be considered by those avoiding alcohol.

Possible side effects: Mild to moderate side effects were reported in four of nine trials in one review, and a 12 month study found no clinically significant safety problems.

Supplement Facts

Ashwagandha 1.6 mL
Supplement Facts
Serving Size 2 Dropperful(s)
Servings Per Container 36
Amount Per Serving% Daily Value
Ashwagandha1.6 mL†
† Daily Value not established.

Other ingredients: Water, Distilled, Alcohol.

Directions: Suggested use: For adults, take 2 dropperfuls in water or juice 3 times a day.

Barcode (UPC) 850029293910 · Label source: NIH label database · Report a label change

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Graded November 8, 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.