Cited skincare — every flag names its source, no upsell.
Pa

Panthenol (Pro-vitamin B5)

Panthenol · Dexpanthenol · Pantothenic Acid · Calcium PantothenateSoothing

Provitamin B5. Humectant + soothing + supports barrier recovery.

What it does

Panthenol is converted to pantothenic acid (B5) in the skin. Improves hydration, soothes irritation, and supports recovery after barrier-disrupting treatments (acids, retinoids, sun).

The evidence, graded

expert consensusPanthenol is barrier-supportive and pairs safely with all actives. It's commonly used to reduce retinoid and AHA irritation as part of 'sandwich' tolerance strategies.Proksch 2002 · Journal of Dermatological Treatment

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

Also known as

pro-vitamin b5, dexpanthenol, vitamin b5, pantothenic acid

Pairs worth knowing

Read more

Routines · 5 minSkincare for the Gym: Before, During, and After SweatSweat plus sunscreen plus friction is a recipe for breakouts and irritation. Here is what to do before a workout, during, and after to keep skin clear.

Browse all 668 ingredients — grouped by what they do, each with whatever evidence we can cite.

This page is public so a shared ingredient card always has its sources behind it — and so you can check them without an account.
Want more like this?
Every evidence-based flag cites its source, Drop tells you when your routine is complete, and it helps you simplify — instead of selling you more. The app launches on iOS and Android in October 2026. Rate my routine works today at /rate — no sign-in.