Ingredient Category: Amino acid

L-Lysine

L-Lysine is an essential amino acid critical for collagen synthesis, carnitine production, calcium absorption, and immune function. Its most popular…

NAD+ (IV / Sublingual)

NAD+ (nicotinamide adenine dinucleotide) IV infusions and sublingual supplements are marketed for anti-aging, energy, and addiction recovery at $250–1,000+ per…

Betaine HCl

Betaine hydrochloride (betaine HCl) is a supplemental source of hydrochloric acid taken with meals to support gastric acid production in…

D-Aspartic Acid

D-Aspartic acid (DAA) is the D-enantiomer of aspartic acid that transiently increases testosterone by stimulating LH release from the pituitary…

Betaine (TMG)

Trimethylglycine (TMG, betaine anhydrous) is a methyl donor that participates in homocysteine → methionine remethylation via betaine-homocysteine methyltransferase (BHMT), providing…

Citrulline Malate

L-Citrulline (often as citrulline malate 2:1) is a non-essential amino acid that serves as the most effective oral precursor for…

Beta-Alanine

Beta-alanine is a non-essential amino acid that is the rate-limiting precursor to carnosine (beta-alanyl-L-histidine) — the primary intramuscular pH buffer…

HMB

β-Hydroxy β-methylbutyrate (HMB) is a metabolite of leucine (~5% of leucine is converted to HMB) that reduces muscle protein breakdown…