Osteoarthritis Cartilage, 2008
At 20 mg/kg, we observed a 4-fold increase with ~13% gametocytemia

In some embodiments, each long-chain fatty acid is independently tridecylic acid (tridecanoic acid), myristic acid (tetradecanoic acid), pentadecylic acid (pentadecanoic acid), palmitic acid (hexadecanoic acid) , margaric acid (heptadecanoic acid), stearic acid (octadecanoic acid), nonadecylic acid (nonadecanoic acid), arachidic acid (eicosanoic acid), heneicosylic acid (heneicosanoic acid), behenic acid (docosanoic acid), tricosylic acid (tricosanoic acid), lignoceric acid (tetracosanoic acid), pentacosylic acid (pentacosanoic acid), cerotic acid (hexacosanoic acid), heptacosylic acid (heptacosanoic acid), montanic acid (octacosanoic acid), nonacosylic acid (nonacosanoic acid), melissic acid (triacontanoic acid), henatriacontylic acid (henatriacontanoic acid), lacceroic acid (dotriacontanoic acid), psyllic acid (tritriacontanoic acid), geddic acid (tetratriacontanoic acid), ceroplastic acid (pentatriacontanoic acid), hexatriacontylic acid (hexatriacontanoic acid), heptatriacontanoic acid (heptatriacontanoic acid), or octatriacontanoic acid

On the contrary, natural products often show good results with very few unwanted effects
Jiang, G
Key Benefits of GHK-Cu for Skin Health GHK-Cu stimulates collagen and elastin production, helping restore firmness and reduce wrinkles