Articles by Luca de Alpas

Longevity culture talks about peptides constantly, often blending well-supported skincare research with much bigger, far less settled claims about aging itself. Here is how to tell which is which.

Peptides didn’t become a household word by accident. Several separate trends converged at once, from biotech advances to a completely unrelated medical news cycle. Here is what’s actually behind the surge.

Collagen peptides are commonly marketed for joint comfort, but the research and the marketing don’t always line up. Here is what the evidence supports, and when joint pain needs more than a supplement.

Peptide serums and supplements for hair are a growing category, but the evidence varies widely by product type. Here is what’s actually supported, and when hair thinning calls for a doctor rather than a shampoo.