numedica liposomal glutathione Complex 1150mg + NAC Supplement - High Absorption, Skin, Hair, Glow, Liver & Immune Support - Phospholipid, Biotin, Alpha Lipoic Acid, Resveratrol, VIT C & E Liposomal Glutathione (NuMedica) | Boulevard

So the protocol sets the dose to land GHK-Cu in a sensible daily range (~1.67 mg), and the three recovery/anti-inflammatory peptides ride along at their lower 0.33 mg each

[DOI] [PMC free article] [PubMed] [Google Scholar] Brendel MFocke CBlume TPeters FDeussing MProbst FJaworska AOverhoff FAlbert NLindner S, et al

DEEP HYDRATION WITHOUT GREASE: This lightweight, youth-enhancing copper peptides serum for face sinks in fast to lock in moisture

Supports skin health and immune function

Its potent healing effects on tendon tissue are well-documented in the research

Yes, research has shown that vitamin C works well and can be used with other beneficial ingredients including niacinamide, retinol, peptides (except copper peptides, which Paulas Choice does not use) and exfoliating acids