D-Panthenol (also called dexpanthenol or provitamin B5) is a stable, skin-friendly alcohol form of pantothenic acid — a B vitamin your body needs for cellular repair and energy production. When applied to the skin, it's quickly absorbed and converted into pantothenic acid, the biologically active form that gets to work right away. It's one of the most widely used ingredients in dermatology and cosmetics precisely because it's effective, stable, and almost universally tolerated.

Once absorbed, panthenol is converted into pantothenic acid, which serves as a building block for coenzyme A — a molecule involved in fatty acid synthesis and cell membrane repair. This supports the skin's ability to rebuild its protective barrier, retain water, and reduce inflammation. Panthenol also stimulates the activity of fibroblasts, the cells responsible for producing collagen and closing wounds.

Topical concentrations typically range from 0.5% to 5% in skincare products, with 1–2% common in leave-on formulas and up to 5% in wound care and medicated creams. It appears in shampoos and conditioners (for hair moisture and scalp support), sprays for burns, gels for post-tattoo care, and ointments for diaper rash and wound healing. It's also used in eye drops for dry eye relief.

• Dry and dehydrated skin
• Wound healing and minor burns
• Eczema and dermatitis
• Skin barrier damage
• Diaper rash
• Post-procedure skin recovery (laser, peels, tattoos)
• Scalp dryness and hair moisture
• Sunburn relief
• Nasal dryness and irritation

• Skin barrier breakdown from environmental exposure or harsh cleansers (with daily use)
• Diaper rash recurrence in infants when used as a preventive barrier cream
• Excessive dryness and cracking in hands and feet during cold or dry conditions

• Chicken liver — One of the highest dietary sources of pantothenic acid (Vitamin B5), which supports systemic skin health from the inside out.
• Sunflower seeds — Exceptionally rich in pantothenic acid among plant foods — a handful covers a meaningful portion of your daily B5 needs.
• Salmon and other fatty fish — Good source of pantothenic acid plus omega-3 fatty acids, which work alongside B5 to support skin barrier integrity and reduce inflammation.
• Avocado — One of the best plant-based sources of B5, and its healthy fats also support skin moisture and barrier health synergistically.
• Shiitake mushrooms — Notably high in pantothenic acid for a plant food, along with other skin-supporting compounds — a useful option for plant-based eaters.

• Contact allergy (rare) — may cause redness, itching, or hives in sensitized individuals
• Mild stinging on severely broken or raw skin in rare cases
• Patch test recommended if known sensitivity to panthenol or related compounds

• Recommended daily: Apply a pea-sized to dime-sized amount to affected areas 1–3 times daily. Most skincare products contain 0.5–2% panthenol; wound care formulations may contain up to 5%.
• Best time of day: Can be used morning and/or night. Many people apply it as the last step of their evening skincare routine to allow overnight absorption and repair.
• With or without food: Not applicable — topical use only.
• Time to effect: Immediate soothing and hydration; noticeable skin repair and barrier improvement within 3–7 days of consistent use; full wound healing support over 1–3 weeks depending on severity.
• How long to take it: Safe for continuous long-term daily use. No cycling required. For wound care, continue until the skin is fully healed; for general skincare, use as a permanent part of your routine if it suits your skin.