What it does
- Hydrates and helps improve skin softness and suppleness.
- Soothes and supports the barrier, useful after irritation.
- In hair, improves moisture, manageability and shine.
How it works
Panthenol is converted in the skin to pantothenic acid (vitamin B5), a component of coenzyme A involved in skin metabolism and repair. As a humectant it also draws and holds water, and it is widely documented to have soothing, barrier-supporting properties, which is why it appears in after-sun, post-procedure and sensitive-skin products.
Use level
- Typical use level
- typically 1–5%
Commonly 1–5% in both skincare and haircare; around 1–2% is typical for general use.
Formulation considerations
- Water-soluble; add to the water phase.
- Most stable around pH 4–7; strongly acidic or alkaline conditions over time can hydrolyse it.
- Compatible with most actives; a reliable soothing/humectant workhorse.
What it pairs with & what to avoid
Pairs well with
- Niacinamide, allantoin, centella (soothing)
- Hyaluronic acid, glycerin (hydration)
- Common in leave-on and rinse-off hair products
Use with care / avoid
- Prolonged extreme pH (hydrolysis)
Regulatory status
Panthenol is listed in the EU CosIng database and is a long-established, well-tolerated cosmetic ingredient.
Common questions
What does panthenol do for skin?
It hydrates, soothes and supports the barrier, and is popular in sensitive-skin, after-sun and post-procedure products.
What percentage of panthenol should I use?
Typically 1–5%, with 1–2% common for everyday products.
Is panthenol good for hair?
Yes; it improves moisture, softness, manageability and shine in both leave-on and rinse-off products.