The Skin Formulary

Skincare education, straight from the pharmacist's bench of Dr. Allyson Brennan.
Glow Vitamin C Serum held above oranges to show antioxidants.

October 09, 2026

Vitamin C for Skin: The Complete Guide

Vitamin C is one of the most researched skincare ingredients out there. Used topically, it brightens dull skin, fades dark spots, defends against d...