Vitamin B5 (panthenol/pantothenic acid) is a moisturizing and soothing ingredient that helps hydrate skin, support barrier function, and reduce transepidermal water loss. It is widely used in skincare and haircare for its emollient and wound-healing-supportive properties.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation or stinging | Rare | Usually transient and more likely on compromised or sensitive skin. |
Allergic contact dermatitis | Rare | Sensitization to panthenol has been documented in case reports. |
Redness or itching | Rare | Occasional reaction, often related to other formulation components. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.