In this episode of The Ingredientsage Podcast, we take a science-first look at glycolic acid—one of the most widely used alpha hydroxy acids in skincare.

We break down how glycolic acid works at the molecular level to exfoliate, improve skin texture, and support cell turnover, while also addressing why concentration, pH, and formulation context are critical for safe and effective use.

You’ll learn how glycolic acid compares to other AHAs, what percentage ranges are appropriate for different applications, and how to minimize risks such as irritation, barrier disruption, and photosensitivity.

We also discuss regulatory guidelines, formulation best practices, and how to evaluate glycolic acid products for quality, stability, and consumer safety.

Because understanding ingredients is the first step toward building better wellness.