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Pan6.0
Panthenol (provitamin B5) Research
Mostly mechanism / observationalHigh safety
6 peer-reviewed studies
What the evidence says
Mostly mechanism / observational
Most Panthenol (provitamin B5) studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from mixed-quality randomised trials published 2002–2023 with a typical study size of 46 participants.
Based on 6 studies · 5 RCTs · 157 total participants
Confidence
Moderate
By outcome
Skin healthImproved hydration and barrier function (lower water loss) and soothing of irritated skin (cosmetic, not a health outcome) · 1-4 weeks
Too few graded studies2 studies
Wound & ulcer healing
Too few graded studies2 studies
Steady research
1 study in the last 5 years
200220122023
1RCTn=23 · very small study2017
In Study 1, mean AUC for TEWL reduction from baseline was more pronounced with NTP-CE compared with control (-168.36 vs. -123.38 g/m2/h, p = 0.023).
Stettler H, Kurka P, Lunau N, Manger C, Böhling A, Bielfeldt S, Wilhelm KP, Dähnhardt-Pfeiffer S, Dähnhardt D, Brill FH, Lenz H. · J Dermatolog Treat (2017)
3-week intra-individual RCT (n=23): a panthenol-containing emollient vs control on SDS-challenged skin
Significantly greater TEWL reduction with panthenol, plus improved hydration and increased intercellular lipid-lamellae length (structural barrier restoration)
A second arm showed no negative impact on skin bacterial viability
Significantly accelerated skin barrier repair was found in treatments with the dexpanthenol-containing cream (verum) compared with vehicle-treated (placebo) or untreated skin.
Proksch E, Nissen HP. · J Dermatolog Treat (2002)
In an SLS-irritation model, dexpanthenol cream twice daily accelerated barrier repair significantly more than vehicle or untreated skin
Stratum-corneum hydration rose more with dexpanthenol, and it significantly reduced redness (the vehicle did not)
Mechanism: dexpanthenol → pantothenic acid → coenzyme A → fatty-acid/sphingolipid synthesis for stratum-corneum lipid bilayers
Measuring the diameter of laser-generated lesions revealed a significantly faster cure of the lesions in wound sections that were treated with the dexpanthenol-containing ointment on days 1 and 2, in comparison to the lesions that were treated with petroleum jelly.
Double-blind RCT (n=50) during breast-cancer radiotherapy: dexpanthenol 5% cream vs ectoin 7%
Dexpanthenol helped prevent severe (≥G3) radiodermatitis but was not the best performer
Ectoin gave a significantly lower radiodermatitis grade and less pain/itching — dexpanthenol is not uniformly superior to alternatives (counter-evidence)
On the treated side, the mean of TEWL was lower than the control side on D1 (p = 0.18) and had significant improvement on D3 (p = 0.002)... the severity score was not significantly different on days 1, 3 and 7.
Wananukul S, Limpongsanuruk W, Singalavanija S, Wisuthsarewong W. · J Med Assoc Thai (2006)
Randomized investigator-blinded within-patient study (n=46 children): 5% dexpanthenol + zinc oxide vs ointment base
Significantly lower TEWL on day 3, but no longer significant by day 7
Clinical severity scores did not differ from the ointment base — limited clinical advantage despite the biophysical signal (counter-evidence)
6Review2002
Topical dexpanthenol acts like a moisturizer, improving stratum corneum hydration, reducing transepidermal water loss and maintaining skin softness and elasticity.
Ebner F, Heller A, Rippke F, Tausch I. · Am J Clin Dermatol (2002)
Review establishing the mechanism: pantothenic acid is a component of coenzyme A; topical dexpanthenol penetrates well and acts as a humectant
Summarizes evidence that it activates fibroblast proliferation, accelerates re-epithelialization, and reduces UV-induced erythema
Notes good tolerability with minimal irritancy/sensitization