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Thorne Deep Sleep Complex Review
Tier ⓘ
Tier 4 · Rank 5
Tier 4 · Emerging. A promising mechanism or animal data, with thin human evidence so far. Rank 5 within Tier 4 for Adrenal Support; 16 of 18 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
15 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Biohacker Mentions
0 of 10
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Study, Trial or Testing Result Summary
Members Only25 human studies · 15 improved
25 human studies15 improved4 no effect2,541 people studied
Two of the three ingredients are taken at doses that worked in studies. Corn leaf extract is given at 500 milligrams. In one small placebo-controlled trial of 45 adults, 250 or 500 milligrams each night for 4 weeks lowered saliva cortisol, a stress hormone made by the adrenal glands, by up to 36 percent and improved sleep and mood [1]. This is a single short study. L-theanine is given at 200 milligrams, and its results are mixed. Single 200 milligram doses lowered cortisol or a saliva stress enzyme during stress tests in some trials [2][3][4]. Another trial found no change in saliva stress markers [5]. A month of 400 milligrams daily did not change cortisol more than placebo [6]. A pooled analysis of 31 trials found only modest stress reduction, mostly from lower-quality studies [7]. Chamomile is given at 100 milligrams, but it is unclear how that compares with studied doses. Its evidence is thin. One study with no placebo group linked improved anxiety with higher morning cortisol [8]. Another used a chamomile oil massage, not a capsule [9]. Animal and cell studies are never counted.
See all 25 studies →Hide the studies
- Across 31 placebo-controlled trials with 1168 people, a single 200 mg dose of L-theanine improved attention and reaction time, but the stress reduction was modest and mostly came from studies at high risk of bias, with no effect on fatigue and inconsistent anxiety effects.Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials.
- In a review of 22 studies with 700 people, matcha and green tea preparations with a low caffeine-and-EGCG to theanine ratio were most linked to lower stress and cortisol responses, isolated compounds were not, and certainty of evidence was low.A CE/TA-stratified systematic review and evidence map of matcha and green tea bioactives in endocrine stress regulation:…
- A review of 9 controlled trials suggested 200-400 mg per day of L-theanine may help reduce stress and anxiety in people under stressful conditions, though larger, longer trials are needed.The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systema…
- In 120 healthy young adults, a single 200 mg dose of L-theanine reduced the rise in a saliva stress enzyme after a stress test compared with placebo, and adding 50 mg arginine gave no clear extra benefit.Effect of Combined Ingestion of L-Theanine and L-Arginine for Short-Term Psychological Stress in Young Adults: A Randomi…
- In 80 young adults, a single 200 mg dose of L-theanine did not change saliva stress markers, heart rate, or anxiety during a virtual reality stress drill compared with placebo.Impact of L-theanine and L-tyrosine on markers of stress and cognitive performance in response to a virtual reality base…
- In 64 adults with poor sleep, six weeks of a combination containing L-theanine did not improve sleep more than placebo, and saliva cortisol stayed unchanged in both groups.Effect of a nutraceutical combination on sleep quality among people with impaired sleep: a randomised, placebo-controlle…
- In 45 adults aged 19 to 73, taking corn leaf extract at 250 or 500 mg daily before bed for 4 weeks lowered saliva cortisol (a stress hormone) by up to 36% and improved sleep and mood compared with placebo.UP165, A Standardized Corn Leaf Extract for Improving Sleep Quality and Mood State.
- In 40 patients with schizophrenia or schizoaffective disorder taking 400 mg of L-theanine daily for 8 weeks, changes in the cortisol-to-DHEA-sulfate ratio were linked to symptom improvement in the theanine group but not the placebo group.Serum levels of brain-derived neurotrophic factor and cortisol to sulfate of dehydroepiandrosterone molar ratio associat…
- In 39 people, matcha with a high theanine content and low caffeine ratio lowered anxiety more than placebo matcha, and in mice it reduced stress-induced adrenal enlargement.Stress-Reducing Function of Matcha Green Tea in Animal Experiments and Clinical Trials.
- In 39 working adults with poor sleep, four weeks of a casein hydrolysate and L-theanine blend improved sleep scores and lengthened sleep by 45 minutes versus placebo; cortisol was measured but no clear cortisol benefit was reported.Effect of Alpha-S1-Casein Tryptic Hydrolysate and L-Theanine on Poor Sleep Quality: A Double Blind, Randomized Placebo-C…
- In 36 people given a single 200 mg dose of L-theanine during emotional arousal, theanine changed some attention measures in the opposite direction to caffeine, and no cortisol benefit was reported.Caffeine and theanine exert opposite effects on attention under emotional arousal.
- In 34 healthy adults, a single serving of an L-theanine drink reduced stress ratings after one hour and lowered the cortisol response to a stressful task three hours later compared with placebo.Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-…
- In 30 adults with moderate stress, 400 mg of L-theanine daily for 28 days did not change salivary cortisol more than placebo, though it reduced light sleep and improved some attention scores.Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Rando…
- In 20 pharmacy students taking 200 mg of L-theanine twice daily for about two and a half weeks during a stressful placement, subjective stress was lower than with placebo and a stress-related salivary enzyme was lower.Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activ…
- In a small pilot trial of 20 students, drinking low-caffeine green tea containing about 15 mg of theanine daily for about 2 weeks lowered self-reported stress compared with placebo tea during a demanding work period, and salivary amylase (a stress marker) did not rise as it did on placebo.Anti-stress Effect of Green Tea with Lowered Caffeine on Humans: A Pilot Study.
- In 20 middle-aged adults in a double-blind crossover trial, 7 days of low-caffeine green tea lowered salivary amylase (a stress marker) compared with standard green tea, and participants reported less accumulated fatigue and better sleep quality.Reduced Stress and Improved Sleep Quality Caused by Green Tea Are Associated with a Reduced Caffeine Content.
- In 14 adults given L-theanine, caffeine or placebo on separate occasions, L-theanine blunted the blood pressure rise during mental tasks in people who responded strongly to stress and reduced tension-anxiety scores compared with placebo.Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses.
- In a small feasibility study of nine children with autism spectrum conditions, a high L-theanine tea produced only sporadic improvements compared with placebo, while a GABA oolong tea showed larger gains.A double-blind, placebo-controlled, randomised-designed GABA tea study in children diagnosed with autism spectrum condit…
- In a crossover study of healthy stressed adults, a single 200 mg dose of L-theanine lowered salivary cortisol one hour after dosing more than placebo during a mental arithmetic stress test.A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWav…
- In an 8-week placebo-controlled trial in adults with poor sleep (PSQI 7 or higher), a walnut peptide and theanine combination restored sleep duration and improved self-rated sleep quality, though the human sample size is not given in the abstract.Walnut peptide and theanine combination ameliorates sleep disorders: a multi-species study including a human trial.
- In 18 female college archers given L-theanine or placebo before a competition, cognitive anxiety, a salivary stress enzyme and salivary cortisol were lower in the L-theanine group 10 to 20 minutes before the match; the dose was not stated.Effects of supplement L-theanine on cognitive anxiety, salivary alpha-amylase, and cortisol in archery competition.
- In this study of pharmacy students, eating cookies made with matcha green tea daily for 15 days lowered a salivary stress enzyme compared with cookies made with placebo matcha; the amount of theanine itself was not stated.Stress-reducing effect of cookies containing matcha green tea: essential ratio among theanine, arginine, caffeine and ep…
- In an open-label trial with no placebo group, 45 adults with generalized anxiety disorder who improved on chamomile extract also had rises in morning salivary cortisol, a stress hormone; the abstract does not state treatment length or dose.An exploratory study of salivary cortisol changes during chamomile extract therapy of moderate to severe generalized anx…
- Mouse experiments and human trials of green tea, which contains L-theanine, suggested that green tea with a moderate ratio of caffeine and catechins to theanine and arginine reduced depressed mood and stress-related adrenal enlargement in mice.Improvement of Depressed Mood with Green Tea Intake.
- In dementia patients with insomnia, a chamomile essential oil massage raised 24-hour urinary norepinephrine, a stress-related hormone, but did not clearly improve sleep, and the abstract does not give the number of participants.Differences in Neurotransmitters Level as Biomarker on Sleep Effects in Dementia Patients with Insomnia after Essential …
Review Totals and Summary
Members OnlyWhat buyers say
No written reviews read yet.
Biohacker Summary
Members Only0 of 10 recommend it
0 of 10 biohackers on our panel recommend it
Theanine is the main ingredient here, and the panel is strongly in favor of it: nearly all ten recommend or use it, and the rest are neutral. Most of the panel take it before bed for sleep, and the dose they name most often is 200 mg, with a few taking 100 mg and one taking 300 mg. Others use it in the morning or pair it with coffee, usually 100 to 200 mg alongside caffeine, to get calm focus with fewer jitters and less stress. One panelist also mentioned it in connection with vivid dreams, one pairs it with other focus ingredients, and one said it may help with low mood; nobody said they stopped taking it. Chamomile is a smaller ingredient in this product and got only passing mentions from two panelists, while corn also appeared in the panel's comments but drew mostly warnings.
See all 10 biohackers →Hide the biohackers
Thomas DeLauer · Theanine · neutral
- Highlights Theanine, an amino acid in green tea, as the 'secret sauce' for creating a state of relaxed awareness without jitters by increasing alpha brain waves.
- Notes they ate a lot of corn on the cob but it wasn't a significant source of calories or nutrients, and the feed corn they grew was not for human consumption.
- Recommends Theanine at 200mg, stating it raises alpha wave activity and is best taken alongside caffeine to reduce jitters and drop cortisol.
- Recommends theanine for stress and cortisol management, citing a study where a 200-mg dose triggered a 40% decrease in cortisol within an hour.
- Recommends theanine, an amino acid found in green tea, for clearing cortisol faster than anything else seen in literature, noting a single 200 mg dose can reduce salivary cortisol by 42.4% within an hour.
- Recommends the product Evening Being from Verso, which contains clinical doses of Affron saffron, alpha wave theanine, glycine, and magnesium to improve sleep quality.
- Recommends L-theanine to smooth out the feeling of coffee, suggesting 2 to 400 mg to reduce physiological stress and promote focused energy without drowsiness, especially when caffeine causes anxiety.
- Finds L-theanine 'fun' and takes it at night for sleep, noting it helps a lot of people sleep and gives him 'crazy dreams'. He also mentions it can be taken with coffee in the morning to get rid of jitters, providing a 'calm focus' without being stimulating.
- Recommends theanine for stress or cortisol reduction, stating it increases alpha waves in the brain within 20 to 40 minutes without sedation, with most people taking 200 to 400 mg, and it's synergistic with caffeine.
- Recommends theanine as a practical tool to protect thyroid hormone conversion from the cortisol side, citing a study where a single 200 mg dose produced a significant decrease in salivary cortisol after stressful events.
- Recommends a caffeine and theanine stack for cellular cleanup, as theanine calms mTOR, taking the brakes off autophagy, and suggests taking 200-400 mg in the morning and more in the evening.
- Recommends a simple bag of chamomile tea in a nighttime drink, noting it acts as a sedative to help fall asleep.
- Recommends chamomile and lemon balm as hugely beneficial for a sedative-like effect that can make one feel calmer, especially if tart cherry juice is avoided due to sugar content.
- Explains that Masa chips use nixtamalized corn, a process used by ancient Aztecs where corn is soaked in an alkaline solution.
Dave Asprey · Theanine · recommends
- Suggests that L-theanine supports brain health, muscle function, and focus.
- Dave explains why the 1:2 ratio of caffeine to L-theanine beats coffee alone for working memory, accuracy, and calm, sustained concentration.
- Warns that corn can be a potential source of mycotoxins.
- Recommends combining L-Theanine with caffeine to calm the nervous system without making one sleepy, stripping out jitters and flattening the cortisol spike, making it a power combo for focus.
- Explains that longer shading before harvest builds more L-theanine into the matcha leaf, which is the compound that provides calm, steady focus.
- Uses L-theanine, taking one a day with his Danger Coffee, because it takes the edge off caffeine's stimulation without removing focus, providing alertness without jitters, and helps lower stress hormones for longevity.
- Dave Asprey uses L-theanine every morning because it makes his mornings better and he loves his coffee, noting it takes out the jitters from caffeine, despite limited human study data and no aging data.
- Uses L-Theanine, an amino acid found in green tea, to promote alpha brain waves, reduce cortisol and anxiety, and enhance caffeine's effects for a state of relaxed alertness and deep focus.
- Mentions theanine as one of the nootropics in MTE, describing it as a "chill out thing."
- Dave Asprey recommends adding 100 or 200 mg of L-theanine to Danger Coffee to get more incredible sharp energy from caffeine in a smooth and calm form that's better for focus and less jittery.
- Recommends L-theanine as part of a biohacking stack to recycle molecules, protect mitochondria, and maintain effortless, razor-sharp focus all day long.
- States that Dr. Kellogg made Corn Flakes to lower testosterone levels.
- Highlights why common gluten-free substitutes like corn aren't the safe havens we wish they were.
- Warns that corn contains a gluten protein called zein, which can cause inflammation in Celiac patients, and that some studies suggest it can be worse than wheat gluten.
Dr. Mark Hyman · Theanine · recommends
- Lists L-theanine as an amino acid in green tea that promotes relaxation and calmness, and can help lower anxiety or depression symptoms.
- Takes 200 mg of Double Wood L-Theanine before bed for sleep.
- Has been enjoying Peak's Sun Goddess Matcha for years, noting it delivers calm, sustained energy due to its natural combination of caffeine and L-theanine, supporting focus and productivity.
- Takes 300 mg of Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Recommends L-theanine as an ingredient in Besper that helps the body relax.
- Takes 100 mg of L-Theanine before bed for sleep.
- Notes that Nandaka contains L-Theanine, which delivers steady focus and clarity.
- Takes 300 mg of L-Theanine before bed for sleep.
- Takes 100 mg of L-Theanine before bed for sleep.
- Adds a little bit of corn as a topping for the burrito bowl.
- Recommends chamomile as an herbal supplement for deep sleep and relaxation, especially for those who are tired, wired, and stressed.
- States that chamomile tea helps with anxiety and is calming.
- Identifies corn as one of the most common food sensitivities that can lead to the overgrowth of bad gut bacteria.
Andrew Huberman · Theanine · neutral
- Discusses Theanine and its association with vivid dreams.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of Double Wood L-Theanine before bed for sleep.
- He takes 200 mg of L-Theanine from Double Wood before bed for sleep.
- Takes 200 mg of Double Wood L-Theanine before bed for sleep.
- Takes 200 mg of L-theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Discusses Theanine as a sleep supplement.
- Recommends Theanine as one of three main supplements for improving the ability to fall and stay asleep, suggesting 100 to 400 milligrams, taken 30 to 60 minutes before bedtime, but notes some people find it causes vivid or anxiety-ridden dreams.
- Mentions chamomile extract as one of the clinically supported ingredients that can help you fall asleep, stay asleep, and wake up feeling more refreshed, and he has worked with AG1 to create a product that includes it.
- Mentions Chamomile extract as a clinically supported ingredient that can help people fall asleep, stay asleep, and wake up feeling more refreshed.
- States that chamomile extract is a clinically supported ingredient that can help one fall asleep, stay asleep, and wake up feeling more refreshed.
- Mentions chamomile extract as one of several clinically supported ingredients that can help people fall asleep, stay asleep, and wake up feeling more refreshed.
Bryan Johnson · Theanine · uses
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 100 mg of L-Theanine before bed for sleep.
- He takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-theanine before bed for sleep.
- He takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
Ben Greenfield · Theanine · recommends
- Suggests that adding 100 mg of L-theanine to coffee makes the energy last longer with fewer jitters.
- Mentions Andrew Bustamante's recovery tools, including L-theanine.
- States that L-Theanine has become an ever-present supplement in their house, serving as a leveler for any kind of anxiety or stress.
- Notes that theanine is an ingredient in MTE.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- He takes 200 mg of L-Theanine from Double Wood before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- He takes 200 mg of L-Theanine from Double Wood before bed for sleep.
- Suggests using chamomile as a compound to help shut down hardwired dopamine firing pathways for those with ruminating thoughts at night.
- Notes that increased consumption of grain, corn, sugar, and seed oils along with fats can cause them to become more atherosclerotic.
- Ben Greenfield recommends chamomile as an herbal supplement for insomnia.
- Mentions chamomile powder as part of Dr. Mercola's autophagy tea.
Dr. Eric Berg · Corn · warns
- States that corn can contribute to gut inflammation and rheumatoid arthritis.
- Warns that veggie straws are primarily potato starch and corn flour, dyed with a dusting of spinach powder.
- Lists corn as a top food that causes inflammation.
- Dr. Eric Berg recommends Chamomile Tea to help reduce kidney and gallstones.
- Dr. Eric Berg states that L-theanine may help combat depression without the side effects that can accompany pharmaceutical drugs.
- L-theanine is an amino acid that occurs naturally in green and black tea leaves and is known for its ability to calm the mind and improve cognitive function by boosting essential chemical messengers in the brain.
- Dr. Berg discusses L-theanine as a popular drink that can support mood and mental health.
- Mentions L-Theanine in a hashtag related to cortisol.
- Notes that Wikipedia states there is insufficient evidence to recommend the use of chamomile for treating dysmenorrhea.
- Recommends chamomile tea because it contains apigenin, which decreases CD38 cells, helping to preserve NAD in mitochondria and support energy extraction.
- Advises against consuming corn to prevent problems with mold and fungus.
- Recommends chamomile tea as a great option to help wind down for sleep.
- Recommends chamomile tea for lowering cortisol and stabilizing blood sugar by directly supporting the cells in the pancreas.
- Suggests changing the types of subsidized foods, including corn, to improve America's health.
Dr. Rhonda Patrick · Theanine · recommends
- Recommends L-theanine, an amino acid found in green tea, to amplify coffee's cognitive benefits and reduce jitteriness, noting it works synergistically with caffeine to improve cognitive performance and reduce anxiety.
- Recommends adding L-theanine to coffee to enhance cognitive performance, citing studies showing improved attention, reaction time, and accuracy.
- Recommends L-theanine to amplify the cognitive benefits of coffee without as much jitteriness or anxiety, suggesting a practical dose of 100-200 mg taken at the same time as 100-150 mg of caffeine.
- Rhonda takes 200 mg of L-Theanine before bed for sleep.
- Recommends L-theanine as a better option for a sleep-promoting supplement.
- Recommends L-theanine as a sleep supplement that promotes relaxation and reduces nighttime awakenings, offering meaningful improvements to sleep quality.
- Recommends Chamomile as a sleep supplement that promotes relaxation and reduces nighttime awakenings, offering meaningful improvements to sleep quality.
- Mentions L-theanine as one of the calming things that can be helpful for people who need a little bit of calming and relaxation to promote sleep, even if it doesn't technically do anything on the sleep side.
- Mentions chamomile as one of the calming things that can be helpful for people who need a little bit of calming and relaxation to promote sleep, even if it doesn't technically do anything on the sleep side.
- Uses L-theanine, a non-sedating amino acid, at a dose of 200-400 mg, to help calm the brain and improve sleep latency and quality, especially for anxiety/insomnia.
- Discusses why one should pair L-theanine with coffee.
- Recommends pairing 100–200 mg of L-theanine with caffeine to boost focus, attention, and reduce distractibility, noting it creates a "calm yet focused" state.
- Recommends drinking chamomile tea at night before bed for sleep quality, as it is rich in apigenin and has some evidence to support its benefits.
Siim Land · Theanine · recommends
- Recommends L-theanine as a nootropic or to counteract stress and anxiety, stating that it can be taken before bed or in the morning for an anxiolytic effect, and its absorption is not reduced by food or coffee.
- Mentions getting a 'glycine + chamomile tea buzz too hard', implying a connection to sleep or relaxation.
- He takes 200 mg of L-Theanine before bed for sleep.
- Takes 200 mg of Double Wood L-Theanine before bed for sleep.
- He takes 100 mg of L-Theanine before bed for sleep.
- Takes 200 mg of L-Theanine before bed for sleep.
- Notes that Theanine, an amino acid in tea, improves sleep onset and reduces stress and anxiety, but does not have significant nootropic effects alone, working best when combined with caffeine to balance its stimulatory effect.
- Recommends having chamomile tea in the evening as it has autophagy-regulating effects and is part of his perfect evening tea.
- Finds L-theanine interesting due to its good safety profile and its ability to address anxiety caused by high caffeine intake, helping people feel calmer and sleep better.
- Warns that chamomile is ludicrous for people with severe mental health challenges, as it's not potent enough, but might be interesting for those with very low-grade anxiety.
- Notes that L-theanine shows moderate promise for subjective sleep quality, especially sleep latency and daytime function, with doses below 200 mg having the best results on sleep latency and subjective quality, and doses 200 to 400 mg improving daytime dysfunction and sleep quality.
- Drinks chamomile tea 2 hours before bed, noting its anxiolytic properties and ability to improve sleep.
- Drinks chamomile tea in the evening.
- Places Theanine in the 'good' tier, noting that this amino acid is often combined with caffeine as a nootropic and may also help with stress, anxiety, and sleep.
Peter Attia · Theanine · uses
- Uses Theanine, noting its GABAergic effect, in combination with Alpha GPC, MCT, and caffeine for cognitive performance.
- Mentions theanine as an ingredient that works well with Alpha GPC, MCT, and caffeine, noting its GABAergic effect.
- Peter Attia's group did a study comparing low-fat chips and cookies and crackers to traditional ones, and found that assuming calorie control, eating full-fat corn oil chips was better for everything.
- Peter Attia mentions corn as a commodity product driving the obesity epidemic.
- Notes that if food subsidies were removed, the price of corn would go up, according to a study by the Genie Foundation at UC Berkeley.
- Takes 200 mg of Thorne Theanine before bed for sleep.
RAL Summary
Members OnlyTier 4 for Adrenal Support
This product is rated emerging. Corn leaf extract has one small positive trial and L-theanine has mixed human evidence on stress hormones, and there are no reviews to confirm benefit.
- Emerging: not enough evidence to rank higher yet.
Where the evidence disagrees: 4 of the 25 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Endocrine system, Nervous system
Possible side effects: No major side effects reported.
Supplement Facts
Corn extract 500 mg · L-Theanine 200 mg · Chamomile extract 100 mg
Supplement Facts
Serving Size 2 Capsules
Servings Per Container 30
Amount Per Serving% Daily Value
| Corn extract (leaf) | 500 mg | † |
| L-Theanine | 200 mg | † |
| Chamomile extract (flowering top) | 100 mg | † |
† Daily Value not established.
Other ingredients: Hypromellose (derived from cellulose) capsule, Microcrystalline Cellulose, Calcium Laurate, Silicon Dioxide.
Directions: Take 2 capsules 60 minutes before bedtime daily or as recommended by your health-care practitioner.
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Graded November 5, 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.
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