Ingredient Encyclopedia

Welcome to the Ingredient Encyclopedia

Discover what’s inside your skincare — from retinol to aloe vera — with clear guides on benefits, uses, and safety.

Ingredient Encyclopedia

Peptides & Ceramides: Stronger Barrier, Smoother Skin

by ThankMeNow Editors on Sep 12, 2025
Peptides and ceramides are the powerhouse duo for building stronger, smoother, and more resilient skin. Peptides, made of short amino acid chains, act as messengers that stimulate collagen and elastin to improve firmness, texture, and elasticity. Ceramides, which make up nearly half of your skin’s barrier lipids, seal in moisture and prevent irritation, dryness, and fine lines caused by environmental stress.