Dermatologists Define Critical Ingredient Distinctions for Mature Skincare Serums

By Deanna Pai, Christa Joanna Lee · Allure · 2026-09-24

Allure recently analyzed the formulation requirements for aging skin, emphasizing the distinct functional roles of retinoids, acids, and hydrators. The report clarifies the technical differences between active-heavy serums and barrier-focused face oils, providing a framework for

Allure recently analyzed the formulation requirements for aging skin, emphasizing the distinct functional roles of retinoids, acids, and hydrators. The report clarifies the technical differences between active-heavy serums and barrier-focused face oils, providing a framework for