Supplements

NNMT inhibitor that redirects nicotinamide into NAD+ synthesis. Popular in biohacker circles, backed by zero human trials.

A serotonin precursor studied for mood, with a thin base of quality trial evidence.

AMPK activator marketed as 'exercise in a pill.' WADA-banned in sport, not FDA-approved for anything.

A choline compound studied mainly in stroke and vascular-dementia recovery.

A nootropic compound showing cognitive improvements in Alzheimer's disease trials but not in healthy individuals.

Adaptogenic herb studied for cortisol and stress. Standardised by withanolide content.

Branched-chain amino acids. Largely redundant when total protein intake is adequate.

A dietary nitrate source studied for blood pressure and exercise performance.

A plant alkaloid studied for blood sugar and lipid control in type 2 diabetes.

An amino acid studied for buffering fatigue during short, high-intensity exercise.

Trace mineral studied for effects on SHBG and free testosterone at modest doses.

A widely studied stimulant taken for alertness and physical performance.

Slow-digesting dairy protein, often taken before sleep for prolonged amino acid release.

An antioxidant compound studied for heart failure and mitochondrial support.

Hydrolysed collagen studied for connective tissue and skin. Not a complete protein.

Among the most studied sports supplements. Daily consistency matters far more than timing.

The main active compound in turmeric, studied for inflammation and metabolic markers.

Herbal extract studied for libido and testosterone markers. Results across trials are inconsistent.

Amino acid studied for sleep quality and as a glutathione precursor.

A sugar alcohol studied mainly for metabolic and reproductive outcomes in PCOS.

An amino-acid derivative studied for body composition and exercise recovery.

An amino acid studied for blood flow and exercise performance.

A green-tea amino acid studied for stress and relaxation.

Mineral supplement. Glycinate and citrate are the commonly used forms; oxide is poorly absorbed.

A circadian-clock hormone taken most often for jet lag and sleep timing.

A redox compound showing acute memory effects in healthy volunteers, but unclear benefit in dementia trials.

An amino-acid derivative and glutathione precursor studied for exercise and antioxidant effects.

Cellular coenzyme central to energy metabolism and DNA repair. Not actually a peptide, but a fixture of longevity peptide clinics and stacks.

An NAD+ precursor studied in an early human dose-finding trial.

Marine fatty acids. Label totals and actual EPA/DHA content frequently differ.

Pea, rice or soy protein blend. Blending improves the amino acid profile over single sources.

An essential mineral studied for blood pressure, requiring caution with kidney disease or certain medications.

Live microorganisms studied for gut and digestive outcomes, effects varying by strain.

A soluble fiber studied for cholesterol and digestive regularity.

A plant polyphenol studied widely, with evidence still short of a clinical recommendation.

A plant extract studied for urinary symptoms of benign prostatic hyperplasia.

An essential trace mineral studied for thyroid antibody levels.

A fruit extract studied for exercise-induced muscle soreness.

Conditionally essential amino acid studied for cardiovascular and exercise outcomes.

Herbal extract studied for testosterone and stress markers. Extract ratios vary widely between products.

Fat-soluble vitamin. Has a genuine upper limit — accumulates rather than clearing.

Combined B vitamins. High-dose biotin within these can interfere with some lab immunoassays.

Water-soluble vitamin. Methylcobalamin and cyanocobalamin are the common forms.

Water-soluble antioxidant vitamin. Absorption saturates, so split dosing beats one large dose.

Fat-soluble vitamin dosed in international units. Frequently paired with K2.

Fat-soluble antioxidant. Mixed tocopherols are closer to the dietary form than alpha alone.

Fat-soluble vitamin involved in calcium handling. Often paired with vitamin D3.

Fast-absorbing complete dairy protein with a high leucine content.

Essential mineral. Long-term high doses induce copper deficiency.