I asked that question when I first learned about this process, too, and the answer is pretty interesting
Banach, M

Compatible Formulation Types Aqueous or light gel serums O/W emulsions (creams and lotions) Eye contour treatments Sheet mask essences Non-rinsed scalp sprays and leave-on tonics Facial cream formulations Compatibility with Other Actives & System Design Synergistic Combinations GHK-Cu works effectively alongside these active ingredients: Low-strength retinoids : Complementary anti-aging action Niacinamide : Barrier support and brightening Panthenol : Soothing and hydrating Ceramides : Barrier restoration Hyaluronic acid : Hydration and plumping Mild alpha hydroxy acids in night products : Gentle exfoliation Vitamin E and ferulic acid : Antioxidant properties enhancement Combinations Requiring Caution High-percentage glycolic or lactic acid : Can destabilize peptides Low-pH ascorbic acid (direct vitamin C) : May affect copper state Excessive chelators : Compete for copper binding Recommendation : Sequence potentially incompatible actives in separate products within a regimen rather than combining in single formulations

After centrifugation at 20,817 g at 4 C for 20 min, the concentrations of cell lysate were measured using Micro BCA Protein Assay Kit (Thermo Fisher Scientific)
A 2019 study from the journal Nutrients says that as long as you also consume plenty of high-quality complete proteins, collagen can account for up to 36% of your overall protein needs[*]
Often referred to as the master antioxidant, it plays a critical role in protecting cells from oxidative stress, supporting detoxification, and maintaining overall cellular health