Panthenol (D-Panthenol)

INCI: Panthenol (D-Panthenol) 

Category: Provitamin B5 / Humectant / Barrier-Repair Active 

Used in: Moisturisers, serums, toners, scalp treatments, shampoos, conditioners, wound-care formulas 

Typical Usage Level (Topical): 0.5–5%

What This Ingredient Does

Panthenol is the alcohol form of pantothenic acid (vitamin B5) and functions as a provitamin; it is absorbed into the skin and hair and converted to pantothenic acid, which is an essential component of coenzyme A. In skin, this conversion supports keratinocyte proliferation and accelerates barrier repair. On the surface, panthenol acts as a humectant, attracting and retaining water in the stratum corneum. It also has demonstrated anti-inflammatory activity, reducing redness and irritation in sensitised skin. In hair, panthenol penetrates the hair shaft, binding to the cortex and temporarily increasing fibre diameter improving shine, reducing brittleness, and adding body. On the scalp, it soothes irritation and supports a healthy follicle environment.

Pairs well with Allantoin and Ceramide NP for barrier repair formulas. In scalp and hair products, it complements Betaine and Biotin for a hydration and strength-focused approach.

Key Benefits

• Converts to pantothenic acid in skin to support keratinocyte proliferation and barrier repair

• Humectant action retains water in the stratum corneum, improving hydration

• Reduces redness and irritation clinically studied for anti-inflammatory effect

• Penetrates the hair shaft to improve fibre strength, flexibility, and shine

• One of the most broadly applicable ingredients across skin, scalp, and hair formulations

Who It's Best For

• Dry, dehydrated, or barrier-compromised skin

• Irritated or reactive skin post-procedure or post  exfoliation

• Scalp conditions involving dryness, flakiness, or sensitivity

• Hair that is brittle, overprocessed, or prone to breakage

• Suitable for all skin types including pregnant women and infants

Clinical Note by Dr. Su

Panthenol is one of the most consistently safe and effective multi-use ingredients available. Its track record in wound healing, barrier repair, and scalp health is well  established, and the conversion to pantothenic acid means it does real biological work rather than sitting on the surface. If a patient can use only one soothing and hydrating ingredient across their skin and hair routine, this is often my first recommendation.

References

• Ebner F, et al. (2002). Topical use of dexpanthenol in skin disorders. American Journal of Clinical Dermatology. PMID: 12113648

• Proksch E & Nissen HP. (2002). Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate–induced irritation. Journal of Dermatological Treatment. PMID: 12227892