Provitamin B5 (PANTHENOL)
Commonly Found In
Overview
Panthenol (provitamin B5) is the alcohol analog of pantothenic acid that penetrates the skin readily and is enzymatically converted to pantothenic acid, a component of coenzyme A essential for cellular metabolism. As a humectant, it attracts and binds water in the stratum corneum, contributing to skin hydration and a soft, smooth texture; clinical evidence indicates it also helps improve skin barrier function by stimulating keratinocyte proliferation and supporting lipid synthesis in the epidermis. Studies suggest panthenol has mild anti-inflammatory properties, making it commonly used in formulations for sensitive, irritated, or barrier-compromised skin as well as in post-procedure skincare. The CIR Expert Panel has assessed panthenol as safe for cosmetic use at concentrations of 1-5% in skin products and 0.1-1% in hair products.
Also known as: Provitamin B5, Dexpanthenol, D-Panthenol, DL-Panthenol (racemic form), Pantothenol, (R)-2,4-Dihydroxy-N-(3-hydroxypropyl)-3,3-dimethylbutanamide
Key Benefits
Studies suggest panthenol improves skin hydration and barrier function by acting as a humectant and by converting to pantothenic acid, which supports keratinocyte metabolism and lipid synthesis. Clinical evidence indicates it may help reduce transepidermal water loss (TEWL), accelerate epidermal regeneration, and provide mild anti-inflammatory effects, making it beneficial for dry, sensitive, and barrier-damaged skin.
Supporting Research
- β’ Ebner F et al. (2002). Topical use of dexpanthenol in skin disorders. American Journal of Clinical Dermatology, 3(6), 427-433. Reviewed evidence for moisturization, barrier repair, and anti-inflammatory effects.
- β’ Proksch E & Nissen HP (2002). Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritation. Journal of Dermatological Treatment, 13(4), 173-178. Demonstrated TEWL reduction and barrier repair in irritated skin.
- β’ Camargo FB Jr et al. (2011). Skin moisturizing effects of panthenol-based formulations. Journal of Cosmetic Science, 62(4), 361-370. Measured significant increase in skin hydration versus control after 4 weeks.
Skin Compatibility Ratings
Comedogenic Rating
Non-comedogenic; widely used in all skin types including acne-prone.
Source: Draelos ZD & DiNardo JC (2006). A re-evaluation of the comedogenicity concept. JAAD, 54(3), 507-512.
Irritancy Rating
Non-irritating. Among the most widely tolerated cosmetic ingredients. Suitable for sensitive skin, infants, and post-procedure use.
Source: CIR Expert Panel. Safety assessment of panthenol. International Journal of Toxicology, 2016 update.
Typical Use Concentration
Range
0.5-5%
Optimal
1-3% (skin); 0.5-1% (hair products)
CIR has assessed concentrations of 1-5% as safe and effective in skin products. No regulatory concentration caps exist in any major market. Higher concentrations are sometimes used in pharmaceutical wound-healing preparations.
Works Well With / Avoid
Works Well With
Panthenol is stable across a wide pH range and compatible with virtually all cosmetic ingredients. It remains effective in both aqueous and anhydrous formulations.
Commonly Found In
Global Regulation Summary
Overview of current status across major international markets.
Detailed Regional Status
| Region | Status | Max Conc. | Conditions | Source |
|---|---|---|---|---|
| πͺπΊ EU | Unknown | - | - | Official β |
| πΊπΈ USA | Unknown | - | - | Official β |
| π―π΅ Japan | Unknown | - | - | Official β |
| π°π· Korea | Unknown | - | - | Official β |
| π¬π§ UK | Unknown | - | - | Official β |
π Why Regulations Differ
Panthenol is not subject to specific concentration restrictions or bans in any major regulatory jurisdiction (EU, US, JP, KR, UK). It is uniformly classified as a safe cosmetic ingredient across all markets. No pending regulatory reviews or restrictions are anticipated. Differences in product claims (e.g., wound healing claims may trigger pharmaceutical classification in some markets) are related to product positioning rather than ingredient restrictions.
Regulation Analysis
Category Comparison
97% of SKIN CONDITIONING ingredients (378 of 389) are banned in the EU, but this one is approved.
πΏ Natural Sources
Pantothenic acid (parent compound) is found in most plant and animal foods including liver, kidney, wheat germ, royal jelly, peanuts, spinach, cheese, peas, eggs, beef, chicken, mushrooms, tuna, sunflower seeds, avocado, and whole grains like oats and brown rice. Name derived from Greek 'pantothen' meaning 'from everywhere'.
π How It's Made
Synthesized by condensing D-pantolactone with 3-aminopropanol, yielding D-panthenol (the biologically active form). Chemical structure elucidated in 1938 by Williams; synthesis method established in 1939. Only D-panthenol (dexpanthenol) is biologically active; DL-panthenol is a racemic mixture where only the D portion converts to Vitamin B5.
π Uses in Cosmetics
Used at 0.5-5% concentration (CIR deems safe at 1-5%). Hair care: 0.1-1%. Supplied as highly purified (>98%) viscous liquid (75-100% active) or powder. Provides humectant and moisturizing benefits, improves skin barrier function, and enhances hair elasticity and shine.
π¬ Other Applications
Therapeutic agent in pharmaceutical ointments for treating burns, anal fissures, conjunctival inflammation, and wound healing. Swiss company Hoffmann-La Roche identified its regenerative properties in the 1940s for treating severe skin injuries from WWII burns. Used in products like Bepanthen wound healing ointment.
π‘ Fun Facts
- β’ Pantothenic acid was first described by Williams in 1933 and named from Greek 'pantothen' (from everywhere) because it was found in virtually all biological materials
- β’ Swiss scientists at Hoffmann-La Roche in the 1940s discovered panthenol's wound-healing properties while treating WWII burn victims, leading to the development of Pantene haircare
- β’ Only the D-form (dexpanthenol) is biologically active - the L-form in DL-panthenol provides only sensory benefits
Related Skin Concerns
Data Sources
- β’ Ebner F et al. (2002). American Journal of Clinical Dermatology, 3(6), 427-433.
- β’ Proksch E & Nissen HP (2002). Journal of Dermatological Treatment, 13(4), 173-178.
- β’ Camargo FB Jr et al. (2011). Journal of Cosmetic Science, 62(4), 361-370.
- β’ CIR Expert Panel. Safety assessment of panthenol. International Journal of Toxicology.
- β’ Draelos ZD & DiNardo JC (2006). JAAD, 54(3), 507-512.
Last data verification: 2026-04-12
Related Ingredients
CHOLINE CHLORIDE
HYDROLYZED HAIR KERATIN
MAGNESIUM ASCORBYLBORATE
BHA
SALICYLIC ACID
THUJA OCCIDENTALIS LEAF EXTRACT
ZINC ASCORBATE HYDROXIDE
Learn More
Frequently Asked Questions
What is PANTHENOL used for in cosmetics?
PANTHENOL is primarily used for skin conditioning in cosmetic products. It also serves as humectant, hair conditioning. The ingredient is commonly found in moisturizers, lotions, and creams.
Which countries regulate PANTHENOL?
PANTHENOL is approved for cosmetic use in all major markets: , with no significant restrictions.
Where can I find official regulation information about PANTHENOL?
Official information about PANTHENOL regulations can be found on government websites: EU CosIng database, US FDA Cosmetics page, Japan MHLW cosmetics standards, UK Government cosmetics guidance, and Korea MFDS. Always verify regulatory status with these official sources before making formulation decisions.
Disclaimer
The information on this website is for educational and informational purposes only and is not intended as medical advice. While we strive for accuracy based on official government databases, cosmetic regulations change frequently. Always consult with a qualified professional or refer to the latest official regulatory documents for compliance. We are not responsible for any actions taken based on the information provided here.