Compound Database

Every supplement, graded by the evidence

Search 128 compounds by topic, category, and how strong the research is. Each one tells you the dose that was studied, when to take it, and what it interacts with. You get the decision, not a wall of abstracts.

How to read this database
Outcome over hype. A grade tracks the strength of evidence for the headline benefit, not how loud the marketing is. A popular compound can still earn a C.
Dose and form matter. We list the dose and form studied in the research, because the wrong form at the wrong dose is the most common reason a supplement does nothing.
Interactions come first. Every entry surfaces interactions and cautions as plain lists. The thing that hurts you is rarely the headline, it is the stack you did not check.
128 compounds, each with mechanism, dose, and citations
20 carry Grade A evidence: trials and meta-analyses agree
8 health topics to filter by, from sleep to longevity
The grading scale

What each grade means

One letter tells you how much to trust the headline claim. It measures the weight of evidence, not whether the compound is worth taking for you.

Grade A
Strong evidence

Multiple randomized controlled trials or meta-analyses point the same way. The effect is consistent and the dose is well characterized.

20 compounds
Grade B
Moderate evidence

Promising human trials exist, but they are smaller, mixed, or limited in scope. A plausible mechanism backs the effect. Worth a careful trial.

55 compounds
Grade C
Early evidence

Evidence leans on mechanism, animal models, or a few small studies. Treat the claims as a hypothesis, not a guarantee.

53 compounds
Find your compound

Search and filter the full database

Type a name or a benefit, narrow by topic, category, or evidence grade, then sort. Tap any card to open the full entry with dose, timing, and citations.

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Showing 128 of 128 compounds

Beetroot (dietary nitrate)

Beet juice, nitrate
Grade A
Other
EnduranceBlood pressure supportExercise efficiency
Typical dose~6–13 mmol nitrate (300–600 mg), often as concentrated beet juice

Beta-alanine

Grade A
Amino acid
Muscular enduranceHigh-intensity capacityReduced fatigue
Typical dose3.2–6.4 g daily, split into smaller doses

Caffeine

Grade A
Other
AlertnessExercise performanceReaction time
Typical dose40–200 mg per serving; up to ~3–6 mg/kg before exercise

Calcium

Grade A
Mineral
Bone densityMuscle contractionNerve signaling
Typical dose1,000–1,200 mg daily total (diet plus supplement)

Creatine monohydrate

Grade A
Other
Muscle power outputStrength gainsCognitive resilience under stress
Typical dose3–5 g daily (loading phase optional)

Folate

Vitamin B9, methylfolate, folic acid
Grade A
Vitamin
DNA synthesisHomocysteine metabolismPregnancy neural support
Typical dose400 mcg DFE daily; 600 mcg in pregnancy

Iodine

Grade A
Mineral
Thyroid hormone productionMetabolic rateCognitive development
Typical dose150 mcg daily (RDA); 220 mcg in pregnancy

Iron

Ferrous bisglycinate, ferrous sulfate
Grade A
Mineral
Oxygen transportEnergy in deficiencyCognitive function
Typical dose18 mg daily (RDA for menstruating women); higher only to correct confirmed deficiency

Melatonin

Grade A
Other
Circadian phase shiftJet lagSleep onset latency
Typical dose0.3–1 mg for circadian signaling; up to 3 mg for jet lag

Niacin

Vitamin B3, nicotinic acid, niacinamide
Grade A
Vitamin
NAD+ and energy metabolismLipid supportSkin barrier
Typical dose14–16 mg (RDA); higher lipid doses only under supervision

Omega-3 (EPA/DHA)

Fish oil, marine omega-3
Grade A
Other
Cardiovascular healthInflammation reductionBrain health
Typical dose1–3 g combined EPA+DHA

Potassium

Grade A
Mineral
Blood pressure supportFluid balanceMuscle and nerve function
Typical dose2,600–3,400 mg daily from diet; supplements limited by regulation

Psyllium fiber

Psyllium husk, soluble fiber
Grade A
Other
Digestive regularityCholesterol supportBlood sugar steadiness
Typical dose5–10 g, one to three times daily

Thiamine

Vitamin B1
Grade A
Vitamin
Carbohydrate metabolismNerve functionEnergy production
Typical dose1.1–1.2 mg (RDA); higher to correct deficiency

Vitamin A

Retinol, beta-carotene
Grade A
Vitamin
Skin cell turnoverVisionImmune function
Typical dose700–900 mcg RAE (RDA); do not exceed 3,000 mcg from retinol

Vitamin B12

Cobalamin, methylcobalamin
Grade A
Vitamin
Energy metabolismNerve functionRed blood cell formation
Typical dose2.4 mcg daily (RDA); 500–1,000 mcg for correcting low levels

Vitamin C

Ascorbic acid
Grade A
Vitamin
Collagen synthesisAntioxidant supportImmune function
Typical dose75–120 mg daily (RDA); commonly supplemented at 250–1,000 mg

Vitamin D3

Cholecalciferol
Grade A
Vitamin
Bone healthImmune functionMood support
Typical dose1,000–4,000 IU daily; target serum 25(OH)D of 40–60 ng/mL

Whey protein

Whey isolate, whey concentrate
Grade A
Other
Muscle protein synthesisRecoverySatiety
Typical dose20–40 g per serving; ~1.6 g/kg total daily protein for trainees

Zinc

Grade A
Mineral
Immune functionTestosterone supportSkin health
Typical dose8–15 mg daily (RDA); short courses up to 30–40 mg for immune support

Alpha-lipoic acid

ALA, R-lipoic acid
Grade B
Other
Antioxidant recyclingBlood sugar supportNerve comfort
Typical dose300–600 mg daily (R-form better absorbed)

Ashwagandha

Withania somnifera, Indian ginseng
Grade B
Herb
Cortisol reductionStress resilienceSleep quality
Typical dose300–600 mg standardized root extract (KSM-66 or Sensoril)

Astaxanthin

Grade B
Other
Skin UV resilienceAntioxidant supportEye and recovery support
Typical dose4–12 mg daily

Bacopa monnieri

Brahmi
Grade B
Herb
Memory consolidationLearningStress resilience
Typical dose300 mg standardized extract (~50% bacosides) daily

Berberine

Berberis extract
Grade B
Herb
Blood sugar steadinessLipid supportMetabolic health
Typical dose500 mg, two to three times daily (1,000–1,500 mg/day)

Betaine anhydrous

Trimethylglycine, TMG
Grade B
Other
Power and strength outputMethylation supportHomocysteine balance
Typical dose2.5 g daily

Casein protein

Micellar casein
Grade B
Other
Slow-release amino acidsOvernight recoverySatiety
Typical dose20–40 g, often pre-sleep

Chasteberry

Vitex agnus-castus
Grade B
Herb
PMS comfortMenstrual cycle supportProlactin balance
Typical dose20–40 mg standardized extract daily

Choline bitartrate

Grade B
Other
Acetylcholine and liver supportMethylationMemory substrate
Typical dose500 mg–1 g daily (RDA-level intake ~425–550 mg)

Citicoline

CDP-choline, cytidine diphosphate-choline
Grade B
Other
AttentionMemory supportBrain phospholipid synthesis
Typical dose250–500 mg daily

Cocoa flavanols

Cacao polyphenols, epicatechin
Grade B
Other
Blood flowCognitive performanceCardiovascular support
Typical dose500–900 mg cocoa flavanols daily

Coenzyme Q10

Ubiquinone, ubiquinol
Grade B
Other
Mitochondrial energyCardiovascular supportStatin-related muscle comfort
Typical dose100–200 mg daily (ubiquinol form is better absorbed)

Collagen peptides

Hydrolyzed collagen
Grade B
Peptide
Skin elasticityJoint comfortHair and nail support
Typical dose2.5–15 g daily

Copper

Grade B
Mineral
Iron metabolismConnective tissueAntioxidant enzymes
Typical dose0.9 mg daily (RDA); ~1–2 mg when balancing high zinc intake

Creatine HCl

Creatine hydrochloride
Grade B
Other
Strength and powerLower-volume creatine dosingReduced bloating
Typical dose1–2 g daily (marketed equivalence to monohydrate is debated)

Curcumin

Turmeric extract
Grade B
Herb
Inflammation supportJoint comfortRecovery
Typical dose500–1,000 mg of a bioavailability-enhanced extract

DHA (omega-3)

Docosahexaenoic acid
Grade B
Other
Brain structureEye healthPrenatal neural development
Typical dose500 mg–1 g DHA daily; ~200–300 mg additional in pregnancy

DHEA

Dehydroepiandrosterone
Grade B
Other
Hormone precursor supportAge-related declineAdrenal support
Typical dose25–50 mg daily (under medical guidance)

Electrolytes

Sodium, potassium, chloride
Grade B
Mineral
HydrationExercise performanceCramp prevention
Typical dose300–1,000 mg sodium per liter of fluid during heavy sweating

EPA (omega-3)

Eicosapentaenoic acid
Grade B
Other
Mood supportInflammation reductionCardiovascular support
Typical dose1–2 g EPA daily for mood applications

Ginger

Zingiber officinale
Grade B
Herb
Nausea reliefDigestive comfortInflammation support
Typical dose1–1.5 g daily

Glycine

Grade B
Amino acid
Sleep qualityCore body temperature reductionCollagen synthesis
Typical dose3 g

Green tea extract (EGCG)

Epigallocatechin gallate
Grade B
Other
Antioxidant supportMetabolic supportCalm alertness with caffeine
Typical dose300–500 mg EGCG daily

Hyaluronic acid

Grade B
Other
Skin hydrationJoint comfortElasticity
Typical dose120–240 mg daily

Inositol

Myo-inositol, D-chiro-inositol
Grade B
Other
Insulin sensitivityOvarian and menstrual supportAnxiety and mood
Typical dose2–4 g myo-inositol daily (often 40:1 myo:D-chiro)

L-Carnitine

Acetyl-L-carnitine, L-carnitine L-tartrate
Grade B
Amino acid
Fatty acid metabolismExercise recoveryCellular energy
Typical dose1–3 g daily (L-carnitine L-tartrate for exercise; ALCAR for cognition)

L-Citrulline

Citrulline malate
Grade B
Amino acid
Blood flow and pumpTraining volumeReduced muscle soreness
Typical dose6–8 g citrulline malate (or ~3–4.5 g pure L-citrulline)

L-Theanine

Grade B
Amino acid
Calm focusSleep onsetCaffeine synergy
Typical dose100–200 mg

L-Tryptophan

Grade B
Amino acid
Serotonin and melatonin precursorSleep onsetMood
Typical dose1–3 g before bed

L-Tyrosine

Grade B
Amino acid
Cognitive performance under stressWorking memoryThyroid support
Typical dose500–2,000 mg

Magnesium citrate

Grade B
Mineral
Digestive regularityGeneral magnesium repletionMuscle relaxation
Typical dose200–400 mg elemental magnesium

Magnesium glycinate

Grade B
Mineral
Sleep qualityMuscle relaxationAnxiety reduction
Typical dose200–400 mg elemental magnesium

Magnesium L-threonate

Magtein
Grade B
Mineral
Cognitive functionMemoryBrain aging
Typical dose1.5–2 g (providing ~140 mg elemental magnesium)

Magnesium oxide

Grade B
Mineral
Occasional constipationInexpensive magnesiumHeartburn relief
Typical dose200–400 mg elemental magnesium

Manganese

Grade B
Mineral
Bone formationAntioxidant enzymesConnective tissue
Typical dose1.8–2.3 mg daily (adequate intake)

N-Acetylcysteine

NAC
Grade B
Amino acid
Glutathione supportAntioxidant defenseRespiratory and liver support
Typical dose600–1,200 mg daily

Panax ginseng

Korean ginseng, Asian ginseng
Grade B
Herb
Mental and physical energyCognitive performanceFatigue resistance
Typical dose200–400 mg standardized extract daily

Pantothenic acid

Vitamin B5
Grade B
Vitamin
Energy metabolismCoenzyme A synthesisSkin support
Typical dose5 mg daily (adequate intake); higher in some skin products

Peppermint oil

Enteric-coated peppermint, Mentha piperita
Grade B
Herb
IBS symptom reliefBloating and crampingDigestive comfort
Typical dose0.2–0.4 mL enteric-coated, two to three times daily

Phosphatidylserine

PS
Grade B
Other
Memory and attentionCortisol bluntingStress recovery
Typical dose100–300 mg daily

Prebiotics (inulin/FOS)

Inulin, fructooligosaccharides
Grade B
Other
Feeding beneficial bacteriaShort-chain fatty acid productionRegularity
Typical dose5–10 g daily, increased gradually

Probiotics

Grade B
Other
Gut microbiome balanceDigestive comfortImmune support
Typical dose1–50 billion CFU daily; strain matters more than total count

Pycnogenol

French maritime pine bark extract
Grade B
Other
Skin and vascular supportBlood flowAntioxidant defense
Typical dose50–150 mg daily

Rhodiola rosea

Arctic root, golden root
Grade B
Herb
Mental fatigueStress resiliencePhysical endurance
Typical dose200–400 mg standardized extract (3% rosavins, 1% salidroside)

Riboflavin

Vitamin B2
Grade B
Vitamin
Energy metabolismAntioxidant recyclingMigraine support
Typical dose1.1–1.3 mg (RDA); up to 400 mg for migraine support

Saffron

Crocus sativus
Grade B
Herb
Mood supportPMS comfortAppetite regulation
Typical dose28–30 mg standardized extract daily

Selenium

Grade B
Mineral
Thyroid hormone supportAntioxidant enzymesImmune function
Typical dose55 mcg daily (RDA); do not exceed 400 mcg

Sodium bicarbonate

Baking soda
Grade B
Other
High-intensity bufferingAnaerobic capacityReduced fatigue
Typical dose0.2–0.3 g/kg body weight

Sulforaphane

Broccoli sprout extract, glucoraphanin
Grade B
Other
Nrf2 antioxidant activationDetoxification supportCellular defense
Typical dose~10–40 mg sulforaphane equivalent (often from broccoli sprout extract)

Tart cherry

Montmorency cherry
Grade B
Other
Exercise recoverySleep qualityInflammation comfort
Typical dose480 mg powdered concentrate, or ~30 mL juice concentrate twice daily

Taurine

Grade B
Amino acid
Exercise performanceCellular hydrationCardiovascular support
Typical dose1–3 g daily

Urolithin A

Mitopure
Grade B
Other
Mitochondrial healthMuscle enduranceCellular renewal
Typical dose500–1,000 mg daily

Vitamin B6

Pyridoxine, P5P
Grade B
Vitamin
Neurotransmitter synthesisPMS comfortHomocysteine support
Typical dose1.3–2 mg (RDA); therapeutic uses up to ~50 mg

Vitamin E

Alpha-tocopherol, mixed tocopherols
Grade B
Vitamin
Lipid antioxidant defenseSkin supportCell membrane protection
Typical dose15 mg (RDA); supplements often higher, prefer mixed tocopherols

Vitamin K2

Menaquinone, MK-7
Grade B
Vitamin
Calcium routing to boneArterial healthBone density
Typical dose90–180 mcg MK-7 daily

5-HTP

5-Hydroxytryptophan
Grade C
Amino acid
Serotonin supportMoodSleep onset
Typical dose50–100 mg, up to 300 mg daily

Alpha-GPC

L-alpha-glycerylphosphorylcholine
Grade C
Other
Acetylcholine supportCognitive focusPower output
Typical dose300–600 mg

Apigenin

Grade C
Other
Sleep onsetAnxietyNAD+ pathway support
Typical dose50 mg

BCAAs

Branched-chain amino acids
Grade C
Amino acid
Intra-workout amino supportReduced perceived sorenessFasted training
Typical dose5–10 g (2:1:1 leucine:isoleucine:valine)

Biotin

Vitamin B7
Grade C
Vitamin
Hair and nail supportMacronutrient metabolism
Typical dose30–100 mcg (RDA-level); cosmetic products use much higher

Boron

Grade C
Mineral
Free testosterone supportBone healthHormone metabolism
Typical dose3–10 mg daily

Butyrate

Sodium butyrate, tributyrin
Grade C
Other
Colon lining fuelGut barrier supportMetabolic health
Typical dose300–600 mg daily (as sodium or calcium-magnesium butyrate)

Chaga

Inonotus obliquus
Grade C
Mushroom
Antioxidant supportImmune modulationGeneral wellness
Typical dose1–2 g hot-water extract daily

Chamomile

Matricaria chamomilla
Grade C
Herb
RelaxationSleep supportDigestive comfort
Typical dose200–400 mg extract, or 1–2 cups of tea

Chlorella

Grade C
Other
Nutrient densityAntioxidant supportImmune support
Typical dose2–5 g daily

Chondroitin

Chondroitin sulfate
Grade C
Other
Joint comfortCartilage cushioningMobility
Typical dose800–1,200 mg daily

Chromium

Chromium picolinate
Grade C
Mineral
Insulin sensitivityBlood sugar steadinessCarbohydrate cravings
Typical dose200 mcg daily

Cordyceps

Cordyceps militaris, Cordyceps sinensis
Grade C
Mushroom
Aerobic performanceOxygen utilizationVitality
Typical dose1–3 g daily of extract

D-Aspartic acid

DAA
Grade C
Amino acid
Testosterone support (weak evidence)Hormone signaling
Typical dose2–3 g daily

Digestive enzymes

Pancreatic enzymes, amylase/protease/lipase
Grade C
Other
Digestive comfortNutrient breakdownBloating reduction
Typical doseVaries by product; taken at the start of meals

DIM

Diindolylmethane
Grade C
Other
Estrogen metabolism supportHormonal balance
Typical dose100–200 mg daily

Eleuthero

Siberian ginseng, Eleutherococcus senticosus
Grade C
Herb
Stress resilienceEnduranceFatigue resistance
Typical dose300–1,200 mg standardized extract daily

Fadogia agrestis

Grade C
Herb
Testosterone support (speculative)Libido
Typical doseNo established human dose; products commonly list 600 mg

Fenugreek

Trigonella foenum-graecum, Testofen
Grade C
Herb
Libido and free testosteroneBlood sugar supportStrength
Typical dose500–600 mg standardized extract daily

GABA

Gamma-aminobutyric acid
Grade C
Amino acid
RelaxationStress reductionSleep support
Typical dose100–300 mg

Ginkgo biloba

Grade C
Herb
Cerebral blood flowMemory supportCognitive aging
Typical dose120–240 mg standardized extract (EGb 761) daily

Glucosamine

Glucosamine sulfate
Grade C
Other
Joint comfortCartilage supportMobility
Typical dose1,500 mg glucosamine sulfate daily

Glutathione

Liposomal glutathione
Grade C
Peptide
Antioxidant defenseSkin brighteningDetoxification support
Typical dose250–500 mg daily (liposomal or S-acetyl forms)

HMB

Beta-hydroxy-beta-methylbutyrate
Grade C
Other
Muscle preservationRecovery in untrained or older adultsAnti-catabolism
Typical dose3 g daily, split into three doses

L-Arginine

Grade C
Amino acid
Nitric oxide and blood flowVascular supportExercise
Typical dose3–6 g daily

L-Glutamine

Grade C
Amino acid
Intestinal lining supportRecovery during heavy trainingImmune support
Typical dose5–10 g daily

L-Lysine

Grade C
Amino acid
Collagen formationCold sore supportCalcium absorption
Typical dose1–3 g daily

L-Ornithine

Grade C
Amino acid
Stress and sleep supportAmmonia clearanceRecovery
Typical dose400 mg–2 g daily

Lemon balm

Melissa officinalis
Grade C
Herb
Calm and stress reliefSleep supportFocus under stress
Typical dose300–600 mg standardized extract

Lion's mane

Hericium erinaceus
Grade C
Mushroom
Cognitive supportNerve growth factorMood
Typical dose500–1,000 mg extract, one to three times daily

Maca root

Lepidium meyenii
Grade C
Herb
LibidoEnergy and moodMenopausal comfort
Typical dose1.5–3 g daily

Magnesium malate

Grade C
Mineral
Daytime energyMuscle comfortGeneral magnesium repletion
Typical dose200–400 mg elemental magnesium

Magnesium taurate

Grade C
Mineral
Cardiovascular supportCalmGeneral magnesium repletion
Typical dose200–400 mg elemental magnesium

Milk thistle

Silymarin, Silybum marianum
Grade C
Herb
Liver supportAntioxidant defenseDetoxification support
Typical dose200–400 mg silymarin daily

MSM

Methylsulfonylmethane
Grade C
Other
Joint comfortExercise recoverySkin and connective tissue
Typical dose1.5–3 g daily

Nicotinamide riboside

NR, Niagen
Grade C
Vitamin
NAD+ supportMitochondrial functionHealthy aging (investigational)
Typical dose250–500 mg daily

NMN

Nicotinamide mononucleotide
Grade C
Other
NAD+ supportCellular energyHealthy aging (investigational)
Typical dose250–500 mg daily

Pomegranate extract

Ellagitannins, urolithin precursors
Grade C
Other
Blood flowAntioxidant supportExercise recovery
Typical dose500–1,000 mg extract daily

PQQ

Pyrroloquinoline quinone
Grade C
Other
Mitochondrial biogenesisCellular energyCognitive support
Typical dose10–20 mg daily

Quercetin

Grade C
Other
Antioxidant and anti-inflammatory supportAllergy comfortSenolytic interest
Typical dose500–1,000 mg daily

Reishi mushroom

Ganoderma lucidum, Lingzhi
Grade C
Mushroom
RelaxationImmune modulationAdaptogen support
Typical dose1–1.5 g hot-water or dual-extract powder; or 500 mg 10:1 extract

Resveratrol

Grade C
Other
Sirtuin activationCardiovascular supportAntioxidant
Typical dose150–500 mg daily

Saw palmetto

Serenoa repens
Grade C
Herb
Prostate comfortDHT-related hair supportUrinary flow
Typical dose320 mg standardized liposterolic extract daily

Shilajit

Mumijo, fulvic acid complex
Grade C
Other
Energy and vitalityTestosterone supportMitochondrial function
Typical dose250–500 mg purified extract daily

Silica

Choline-stabilized orthosilicic acid, bamboo silica
Grade C
Mineral
Hair and nail strengthSkin elasticityConnective tissue
Typical dose5–10 mg elemental silicon daily

Slippery elm

Ulmus rubra
Grade C
Herb
Soothing the gut liningDigestive comfortThroat comfort
Typical dose400–500 mg, up to three times daily, with water

Spermidine

Grade C
Other
Autophagy supportCellular renewalHealthy aging (investigational)
Typical dose1–6 mg daily (often from wheat germ extract)

Spirulina

Arthrospira platensis
Grade C
Other
Antioxidant and nutrient densityLipid supportAllergy comfort
Typical dose1–8 g daily

Theacrine

TeaCrine
Grade C
Other
Sustained energyFocus without crashMood
Typical dose100–300 mg daily

Theobromine

Grade C
Other
Gentle stimulationMoodBlood flow
Typical dose100–250 mg

Tongkat ali

Eurycoma longifolia, longjack
Grade C
Herb
Testosterone supportStress and libidoEnergy
Typical dose200–400 mg standardized extract daily

Turkey tail

Trametes versicolor, PSK/PSP
Grade C
Mushroom
Immune modulationGut microbiome supportPrebiotic effect
Typical dose1–3 g extract daily

Valerian root

Valeriana officinalis
Grade C
Herb
Sleep latencySleep qualityAnxiety
Typical dose300–600 mg standardized root extract
Before you trust a claim

How to read the research behind a supplement

A grade is a shortcut. When you want to check our work or read a citation yourself, three questions separate a finding you can act on from noise. Was it tested in humans, at a dose you could replicate, against a placebo? A mouse study at ten times the human dose stays a hypothesis. A randomized trial in people at a normal dose gives you evidence.

  • Humans, not cells or rodents. Mechanism in a dish rarely survives contact with human physiology. Look for the word "randomized" and a sample of real people.
  • A dose you can match. Effects that need supraphysiologic doses, or a form you cannot buy, do not transfer to the bottle on the shelf.
  • A control group. Placebo effects on sleep, mood, and energy run large. Without a control arm, you cannot tell the compound from the expectation.
Frequently asked questions
How is the evidence grade decided?
Grade A means multiple randomized controlled trials or meta-analyses agree on the effect at a defined dose. Grade B means human trials exist but are smaller, mixed, or narrow in scope, with a plausible mechanism. Grade C means the support is mostly mechanistic, animal-based, or limited to a few small studies. The grade applies to the headline benefit, so a compound can be strong for one use and weak for another.
Why does the dose listed differ from what is on the bottle?
Label doses are set by manufacturers and often reflect cost or marketing, not the dose used in the studies that show an effect. Each entry lists the dose and form tested in published research. Match the form alongside the milligram number: magnesium oxide and magnesium glycinate at the same dose behave in different ways.
Is a higher grade always the better choice for me?
No. The grade reflects evidence strength, not fit. A Grade A compound for jet lag does nothing for muscle soreness. Filter by your topic first, then read the mechanism and best-for fields to see whether the compound matches your actual goal.
Can I take several of these together?
Sometimes, and a few pair well. Each detail page derives a stacks-well-with and an avoid-with list, and lists interactions in full. Introduce one compound at a time so you can tell what is working, and check the cautions if you take medication or manage a health condition.
How is this different from Examine or a generic supplement site?
Every compound here is searchable and filterable by topic, category, and evidence grade in one view, then each detail page gives you the mechanism, the dose and timing studied, a timing visualizer mapped to your own schedule, derived stacking guidance, and full citations. You get the decision, not a wall of abstracts.