INGREDIENT · PROVITAMIN B5
Panthenol in skincare: barrier repair and what trials show
Panthenol is the ingredient behind a lot of nappy and hand balms. It has more human trials behind it than most soothers, though most of them are old and some are small.
You may see it written as
- Panthenol
What panthenol does in the skin
Panthenol (dexpanthenol in the papers) is converted in tissue to pantothenic acid, a component of coenzyme A. Coenzyme A helps drive the early steps in making fatty acids and sphingolipids, which matter for the lipid layers of the outer skin and for cell membranes.1
A 70th-anniversary review says topical panthenol has been used in two ways: as a moisturiser and barrier restorer, and as a wound-healing aid. It also notes that the exact mechanism has still not been fully worked out.2 The review was funded by a consumer-health company, and one of its authors works there.2
What the trials found
Two trials used an irritation model, in which skin is deliberately irritated with sodium lauryl sulphate and the recovery is measured. In the first, a panthenol cream significantly accelerated barrier repair compared with vehicle or untreated skin. It also raised hydration, reduced roughness and reduced redness, which the vehicle did not.1
In the second, 25 healthy volunteers used a 5% panthenol balm or placebo twice a day for 26 days, with a two-percent SLS challenge in the middle. Only one measure, skin hydration (corneometry), reached statistical significance, with a drop after the challenge on placebo. Within individuals, the treated site did better in 11 cases against 1 for the placebo site. Six people got an irritant dermatitis, worse on the placebo side in five of them. The authors concluded panthenol has protective effects.3
Read those with fair eyes. They are small, they are a model of irritation rather than real-world sensitive skin, and one measure reached significance. The direction is consistent, which counts for something, but this is not a big evidence base.
Using panthenol with other products
We did not find a source saying panthenol must be kept apart from another ingredient. In the trials above it was tested on its own, against a plain vehicle, after a detergent irritation test. That makes it a reasonable thing to use alongside products that irritate, but the studies did not test it with a retinoid or an acid, so we cannot say how it behaves with them.
Panthenol in pregnancy and breastfeeding
We found no pregnancy- or lactation-specific evidence for this ingredient.
Evidence on cosmetic products in pregnancy is limited overall, so ask your doctor or midwife about the specific product you use.4
What you will see on the label
On a label, look for Panthenol. Snifff shows it as Low risk. For the rest of the formula, see what the score means and how to read the list.
As Snifff shows itPanthenol
Pregnancy and nursing
We found no pregnancy- or lactation-specific evidence for this ingredient.
Wording as it appears in the extension, which can change between releases.
A FEW MORE ANSWERS
Common questions about panthenol
What does panthenol do for skin?
Trials in irritation models found that a panthenol cream accelerated barrier repair, raised hydration and reduced redness compared with vehicle.1 A review describes its use as a moisturiser and wound-healing aid.2
Is panthenol the same as dexpanthenol?
The research papers use dexpanthenol, and labels use panthenol. The review we cite treats the topical forms together.2
Is panthenol good for irritated skin?
In a 25-person trial it showed protective effects against SLS-induced irritation, though only one measure reached statistical significance.3
Is panthenol safe in pregnancy?
Snifff found no pregnancy-specific evidence for Panthenol. Ask your doctor or midwife about the product you use.
WHERE THIS COMES FROM
Sources
- Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritationProksch E, Nissen HP · Journal of Dermatological Treatment · 2002
- Topical use of dexpanthenol: a 70th anniversary articleProksch E, et al. · Journal of Dermatological Treatment · 2017
- Efficacy of dexpanthenol in skin protection against irritation: a double-blind, placebo-controlled studyBiro K, et al. · Contact Dermatitis · 2003
- Cosmetic dermatology in pregnancy and lactation: a risk-benefit framework for clinical practiceKovacs T, et al. · International Journal of Dermatology · 2026
This page explains an ingredient. It is not medical advice, and it is not an assessment of any product. If you are pregnant, breastfeeding, or have a skin condition, ask your doctor or pharmacist.