How to Use Peptide Serum Without Irritation: The Smart Way to Build Stronger, Healthier Skin Quick Answer (Featured Snippet) To use peptide serum without irritation, apply it on clean, hydrated skin, avoid layering it with strong exfoliating acids initially, and pair it with barrier-supporting ingredients like hyaluronic acid and amino acids. Start once daily and … Continue reading How to Use Peptide Serum Without Irritation: The Smart Way to Build Stronger, Healthier Skin