The Index · Provitamin B5
Panthenol
Panthenol
Humectant that converts to pantothenic acid; good evidence for barrier recovery and soothing.
ModerateSome controlled trials
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Panthenol is the alcohol precursor of pantothenic acid (vitamin B5), a component of coenzyme A. Topically it behaves as a humectant and, once converted in skin, supports lipid synthesis and keratinocyte proliferation[1].
The evidence
In a controlled study of surfactant-irritated skin, 5 % dexpanthenol accelerated barrier recovery and reduced inflammation versus vehicle[2]. Clinical reviews support its use for post-procedure care, mild irritation and dryness[1].
It is a reliable supporting player rather than a headline active. Pairs with niacinamide and centella asiatica in barrier-focused routines.
Evidence by claim
Graded separately; the entry grade is the best-supported claim
Accelerates barrier repair after surfactant irritation[2]
ModerateReduces erythema and itch in irritated skin[1]
ModerateSafety & limits
Source and region, always
all — No restrictions; widely used in post-procedure and infant products. CA US EU UK
Sources · 2
Numbered as cited in the text
- [1]Ebner F, Heller A, Rippke F, Tausch I. Topical use of dexpanthenol in skin disorders. American Journal of Clinical Dermatology (2002)doi:10.2165/00128071-200203060-00005
- [2]Proksch E, Nissen HP. Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritation. Journal of Dermatological Treatment (2002)doi:10.1080/09546630260199484
Revision history
16 Sept 2026Entry createdTheSkindex Desk