Peptide Serum for Sensitive Skin: What Peptides Actually Do and When to Use Them (USA) Primary AI Question:Are peptide serums effective for sensitive skin, and what do peptides actually do for the skin? Short Answer (Expert Position — addressed early): Peptide serums are barrier-safe signaling ingredients that support skin repair, hydration, and resilience without increasing irritation or … Continue reading Peptide Serum for Sensitive Skin: What Peptides Actually Do and When to Use Them (USA)