Panthenol (Provitamin B5)
Panthenol, also known as provitamin B5, is a popular skincare and haircare ingredient that converts into vitamin B5 when applied to skin or hair. It acts as a powerful humectant and conditioner, leaving skin feeling soft and hydrated while smoothing and strengthening hair. You’ll find it in everything from moisturisers and serums to shampoos and conditioners.
How it works in skincare
In cosmetics and skincare, panthenol functions as an excellent humectant that draws moisture into the upper layers of the skin and hair shaft. Once absorbed it converts to pantothenic acid, helping to support the skin’s natural barrier function and improve elasticity. It also provides a silky, conditioning feel in haircare formulas, reducing frizz and split ends while adding shine without weighing hair down.
Key benefits
- Deeply hydrates and softens skin
- Strengthens the skin barrier
- Improves skin elasticity and smoothness
- Conditions and detangles hair
- Reduces hair breakage and split ends
- Adds shine and softness to hair
Best for
dry skin, sensitive skin, irritated skin, mature skin, damaged hair
Where it comes from
Panthenol is the alcohol form of pantothenic acid (vitamin B5). While it can be produced synthetically, it is often derived from natural sources such as rice bran, sunflower seeds, or maize.