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Panthenol (Pro-Vitamin B5) — Versatile Humectant & Skin Conditioner

A widely used humectant, skin conditioner, and solvent (CosIng) that supports hydration and may help improve barrier function. Found in 11,581 products in our database, Panthenol is commonly formulated for sensitive, dry, and compromised skin.

Data sources: EU CosIng (#35839), CIR Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives (2022), and SkinSenseDiary internal evaluation. Last updated: April 2026.

At a Glance

Also Known As
Pro-Vitamin B5, D-Panthenol, Dexpanthenol, 泛醇
CAS Number
81-13-0
CosIng Functions
Humectant, Skin Conditioning, Solvent
Source
Synthetic (identical to natural Vitamin B5 precursor)
Korean Name
판테놀
Regulation
No restrictions

What Is Panthenol?

This moisturizing compound acts as a humectant to attract and retain water in the skin, and may help improve stratum corneum hydration and barrier function. It's commonly added to skincare formulations for its conditioning properties and ability to improve skin texture and softness. This ingredient has a favorable safety profile and is generally well-tolerated, though rare contact dermatitis cases have been documented in the CIR assessment. Individual tolerance may vary.


Panthenol (INCI: Panthenol, CAS 81-13-0) is the alcohol analog of pantothenic acid (Vitamin B5). Once absorbed into the skin, Panthenol is enzymatically converted to pantothenic acid, which is a key component of Coenzyme A — essential for numerous metabolic processes including fatty acid synthesis and energy production in skin cells. This conversion is what makes Panthenol a "provitamin." It exists as D-Panthenol (the biologically active form) and DL-Panthenol (a racemic mixture), both widely used in cosmetics.


The CIR Expert Panel assessed Panthenol, Pantothenic Acid, and five derivatives in 2022 and concluded they are safe as used in cosmetics at present practices and concentrations. According to FDA VCRP data, Panthenol is reported at maximum concentrations of 5.3% in leave-on products and 5% in rinse-off products (these are observed industry values, not recommended or regulatory limits). The CIR found low potential for systemic toxicity, but noted that these ingredients may contain residual amines as impurities and should not be used in products where N-nitroso compounds may form.

Benefits — 4 Key Roles

💧

Hydration Support

Panthenol is a humectant that can penetrate the stratum corneum and help retain water, supporting moisture levels in the skin. It may contribute to both immediate and sustained hydration, helping to reduce dryness and flakiness over time.

🩹

Skin Repair Support

Some studies suggest panthenol may support epidermal recovery, with supportive evidence for effects on cell proliferation and barrier restoration. This is why it is commonly found in repair-oriented ointments and post-procedure products. However, evidence strength varies by study design and formulation context.

🌿

Conditioning & Soothing

Panthenol is commonly associated with soothing properties for irritated and sensitive skin. Some literature suggests it may help reduce irritation from environmental stressors and harsh skincare actives. It is frequently included in post-exfoliation and recovery formulations.

🛡️

Barrier Support

Panthenol may help improve stratum corneum hydration and support barrier function. Some studies have observed improvements in TEWL and barrier recovery, though results can vary depending on formulation, concentration, and study design.

Generally suitable for: Most skin types — especially sensitive, dry, irritated, and post-procedure skin. Also used in hair conditioning. Individual tolerance may vary.

Safety Rating: 1/10 (Low Hazard)

1
/ 10

Safe as Used

The CIR Expert Panel (2022) concluded that Panthenol and its derivatives are safe as used in cosmetics at present practices and concentrations. EU approved with no restrictions. A generally well-tolerated provitamin with a favorable safety profile.

Evidence
CIR Assessment
Safe as Used (2022)
CIR assessed Panthenol, Pantothenic Acid, and 5 derivatives. Maximum reported industry concentration: 5.3% in leave-on products (observed usage, not a regulatory limit). Low potential for systemic toxicity. CosIng functions: humectant, skin conditioning, solvent. Also used as hair conditioning agent.
EU Regulation
No Restrictions
Not listed in Annex II (prohibited), III (restricted), or IV. Registered in CosIng as #35839. EU-wide unrestricted use in cosmetics.
Allergen & Sensitivity
Generally Well-Tolerated
No allergen tags in our database. No GHS hazard codes. Overall well-tolerated with low sensitization risk, though the CIR assessment includes rare contact dermatitis case reports (including positive patch tests at 5%). Commonly found in sensitive-skin and post-procedure formulations.
CosIng
Approved Functions
Humectant · Skin Conditioning · Solvent. EU CosIng approved functions. Panthenol supports skin hydration and improves texture and softness. Also used as a hair conditioning agent in CIR-assessed formulations.

Things to Know

The CIR Panel noted that Panthenol may contain residual amines as impurities and therefore should not be used in cosmetic products in which N-nitroso compounds may be formed. This is a formulation-level consideration addressed during product development.

Published literature and market formulations commonly use panthenol in the low-to-mid single-digit percent range. CIR 2022 reports maximum observed concentrations of 5.3% (leave-on) and 5% (rinse-off) — these are industry-reported values, not clinically established optimal concentrations.

Both D-Panthenol and DL-Panthenol are used in cosmetics. D-Panthenol is the biologically active form and is generally preferred for skin benefits, while DL-Panthenol works well for hair conditioning.

Pregnancy & Nursing

Panthenol (Pro-Vitamin B5) is a water-soluble vitamin precursor naturally found in many foods including eggs, meat, and whole grains. The CIR 2022 assessment found low systemic toxicity potential. Topical panthenol is generally considered a low-risk ingredient during pregnancy based on its overall low toxicity, limited systemic exposure from topical application, and long history of cosmetic use — though this assessment is not based on dedicated pregnancy clinical trials. It is commonly found in sensitive-skin and some baby care formulations. Always consult your healthcare provider for personal advice.

Sources & References
Look up this ingredient on each authoritative source:
🔗 EWG Skin Deep🔗 PubMed🔗 EU CosIng🔗 ECHA🔗 FDA🔗 AAD🔗 CIR
Safety data compiled from CIR Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives (2022), EU CosIng Database, and SkinSenseDiary internal analysis. This is for educational purposes only and does not constitute medical advice. Last updated: April 2026.

Pairing Guide

Great Pairings

Hyaluronic Acid

Two humectants often used together. Both support skin hydration, though their performance depends on concentration, formulation, and product design rather than a simple deep/surface distinction. Complementary humectants in many skincare routines.

Niacinamide (Vitamin B3)

Panthenol (B5) and Niacinamide (B3) are a classic B-vitamin duo. Niacinamide strengthens the barrier and controls oil, while Panthenol hydrates and calms. They complement each other perfectly.

Ceramides

Panthenol may support barrier function while ceramides contribute to the intercellular lipid matrix. Together they are commonly combined in barrier-recovery formulations for dry, damaged skin.

Retinol

Panthenol's soothing and hydrating properties help offset retinol's dryness and irritation. Apply retinol first, then layer Panthenol to calm and protect the skin during retinoid therapy.

Use with Care

Strong Acid Peels (>15% AHA)

Very high-concentration acid peels can temporarily compromise the skin barrier. Use Panthenol as a post-peel recovery treatment rather than layering it simultaneously with the peel.

Products Containing Amine-Based Preservatives

Per the CIR caution, Panthenol should not be combined in formulations where N-nitroso compounds could form. This is a formulation-level consideration addressed during product development.

Popular Products

Featured products containing Panthenol. Found in 11,581 products in our database.

La Roche-Posay
Cicaplast Baume B5+
Healing Balm
CosRX
Balancium Comfort Ceramide Cream
Moisturizer
Drunk Elephant
Protini Polypeptide Cream
Moisturizer
The Ordinary
Multi-Peptide + HA Serum
Serum
Paula's Choice
Skin Recovery Replenishing Moisturizer
Moisturizer
Avène
Cicalfate+ Restorative Protective Cream
Healing Cream

Frequently Asked Questions

Is Panthenol safe for sensitive skin?
Panthenol has a SkinSenseDiary safety rating of 1/10 (Low Hazard). The CIR Expert Panel (2022) concluded Panthenol and its derivatives are safe as used in cosmetics. It is the provitamin form of Vitamin B5. Overall well-tolerated with low sensitization risk, though the CIR assessment does include rare contact dermatitis case reports. No GHS hazard codes. Commonly found in products formulated for sensitive and irritated skin.
Can I use Panthenol every day?
Yes. Panthenol is generally considered safe for daily use. The CIR assessment (2022) found low potential for systemic toxicity, with the maximum reported industry concentration of 5.3% in leave-on products. As a provitamin that converts to Vitamin B5 in the skin, regular use may help support hydration and barrier maintenance.
Can I use Panthenol with Retinol?
Yes, this is a commonly recommended combination. Panthenol's hydrating and conditioning properties may help counteract the dryness and irritation that retinol can cause. Apply retinol first, then layer a Panthenol-containing moisturizer or serum on top.
Is Panthenol safe during pregnancy?
Panthenol (Pro-Vitamin B5) is a water-soluble vitamin precursor. The CIR 2022 assessment found low systemic toxicity potential. Topical panthenol is generally considered a low-risk ingredient during pregnancy based on its overall low toxicity, limited systemic exposure, and long history of use — though this is not based on dedicated pregnancy clinical trials. Always consult your healthcare provider for personal advice.
What is the difference between Panthenol and Pantothenic Acid?
Panthenol is the provitamin (alcohol) form of Vitamin B5, while Pantothenic Acid is the active vitamin itself. When applied topically, Panthenol is absorbed into the skin and converted to Pantothenic Acid by enzymes. Panthenol is preferred in cosmetics because it penetrates skin more readily than Pantothenic Acid and is more stable in formulations.
What concentration of Panthenol is effective?
Published literature and market formulations commonly use panthenol in the low-to-mid single-digit percent range. Per CIR 2022 industry data, the maximum reported concentration is 5.3% in leave-on products and 5% in rinse-off products — these are observed industry values, not clinically established optimal concentrations. Some clinical studies have used 5% dexpanthenol, though results vary by formulation and endpoint.

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