Supports ATP regeneration, muscle mass maintenance, and cognitive function — all longevity-relevant; 2.5g is half the standard 5g load.

TCA cycle intermediate linked to reduced epigenetic aging and improved healthspan in mouse and early human studies.

Longevity amino acid that declines ~80% by middle age; supports mitochondrial function, cardiovascular health, and reduces oxidative stress.

Rate-limiting precursor for collagen and glutathione synthesis; also calms neurological activity and improves sleep quality.

Essential amino acid required for collagen cross-linking (pairs with glycine and vitamin C); also supports immune function.

Cartilage and connective tissue support; epidemiological data links regular glucosamine use to reduced all-cause mortality.

Essential cofactor for collagen hydroxylation (Pro→Hyp); also a key antioxidant regenerating vitamin E and glutathione.

Master cellular antioxidant; oral reduced glutathione supplementation shown to raise whole-blood and tissue GSH levels.

Modulates alpha-wave brain activity; combined with any morning caffeine it smooths stimulant effects without drowsiness.

Joint lubrication and skin hydration; oral HA shown in RCTs to improve knee OA symptoms and skin elasticity.

Cofactor in 300+ enzymatic reactions; supports ATP synthesis, muscle function, and cardiovascular health.