The Skin Formulary
Skincare education, straight from the pharmacist's bench of Dr. Allyson Brennan.
October 20, 2026
Most people think fragrance is the very last step in a formula. The moisturizer gets created first, then someone decides what it should smell like,...
October 19, 2026
CE-Ferulic refers to a serum that combines vitamin C (usually L-ascorbic acid) with vitamin E and ferulic acid. The three are used together because...
October 18, 2026
If you look at the front of almost any moisturizer on the market, youβll see words like βnatural,β βpure,β and βdermatologist tested.β The reality ...
October 17, 2026
The best-studied form of vitamin C for skin is L-ascorbic acid β the pure, active form your skin can use directly. Derivatives can offer more stabi...
October 16, 2026
The average person uses somewhere between 7 and 12 personal care products every day. Almost all of them come in single-use plastic. If youβve ever ...
October 15, 2026
If youβre dealing with dry elbows, cracked heels, rough hands, chapped lips, and peeling cuticles, youβre probably not skipping moisturizer. Youβre...
October 14, 2026
If you're wondering what vitamin C serum actually does for your face β it brightens dull skin, helps fade dark spots and uneven tone, and provides ...
October 13, 2026
The body moisturizer aisle has never been more crowded. Between lotion, body cream, body butter, body oils, body lotion bars, and lotion bar sticks...
October 12, 2026
Do me a favor: grab your current body lotion and look at the first ingredient. In most cases, itβs water. Sometimes listed as aqua, sometimes as H2...
October 10, 2026
If youβve ever stood in the skincare aisle and thought, βI just need something that actually helps my dry skin,β youβre not alone. Most moisturizer...
October 09, 2026
Vitamin C is one of the most researched skincare ingredients out there. Used topically, it brightens dull skin, fades dark spots, defends against d...
October 08, 2026
Most of us have been moisturizing the same way since we were teenagers: pump bottle, white cream, rub it in, and done. Because it works well enough...