Collagen Peptides and Skin Research: What Studies Actually Measure
Hydration, elasticity, wrinkle depth. A plain reading of the trial data, the meta-analyses, and the funding question that changes how the results look.
Skin & Cosmetic
Collagen peptides, copper peptides, and other compounds in skin and hair research: what trials measured, how big they were, and who paid for them.
2 articles
Copper Peptides (GHK-Cu) in Skin and Hair Studies
One of the oldest peptides in cosmetic research. Wound models, follicle studies, and what the topical trial data supports.