source naturals acetyl l-carnitine & alpha-lipoic acid 650mg Spring Valley HCl and Alpha Lipoic Dietary Supplement, 50 Count HSA/FSA Eligible Source Naturals Acetyl L-Carnitine and

Arbutin inhibits tyrosinase activity competitively but at non-cytotoxic concentrations in a dose-dependent manner in cultured melanocytes

Not different salt forms

Indirectly promotes: Muscle growth Lipolysis (fat breakdown) Collagen synthesis and tissue repair Bone density improvements Mechanistically, HGH activates: JAK2/STAT5 pathway for gene transcription IGF-1 production which then triggers anabolic action GH exerts its growth-promoting effects primarily through the stimulation of IGF-1, which acts in an endocrine, paracrine, and autocrine manner. Laron, Growth Hormone & IGF Research Insulin-like Growth Factor-1 (IGF-1) Produced by the liver in response to GH, but also delivered directly through peptide analogs like IGF-1 LR3 or IGF-1 DES

Researchers first isolated it from epithalamin, a substance extracted from the pineal gland