What it is

Panthenol, also known as provitamin B5, is a skin-conditioning ingredient widely used in skincare for its hydrating, soothing, and barrier-supporting properties. It functions as both a humectant and a skin protectant, making it valuable in products designed to improve moisture levels, calm irritation, and support overall skin health.

How it works

Panthenol attracts and retains moisture in the skin, helping to increase hydration levels and reduce water loss. Once absorbed, it converts into pantothenic acid (vitamin B5), which supports the skin’s barrier function and repair processes. This leads to improved moisture retention, reduced dryness, and enhanced skin resilience, resulting in softer, calmer, and more balanced skin.

What it does for the skin

• Deeply hydrates and helps prevent moisture loss
• Soothes irritation and reduces redness
• Supports skin barrier repair and recovery
• Improves skin softness and elasticity

Why it’s effective

Panthenol is effective because it combines immediate hydration with longer-term barrier support. Unlike some hydrating ingredients that work only on the surface, panthenol also supports the skin’s natural repair processes, making it useful in both daily skincare and in products designed to restore compromised or sensitised skin.

Forms & strength

Panthenol is most commonly used in its D-panthenol form, which is the biologically active and more effective version in skincare. It is typically used in low to moderate concentrations, where it delivers hydration and soothing benefits without causing irritation. Its effectiveness depends more on consistent use and formulation synergy rather than increasing concentration.

How to use

Panthenol can be used both morning and evening (AM and PM). It is suitable for daily use and does not require gradual introduction. It is typically applied through serums, moisturisers, or treatments and layers well with both active and hydrating ingredients. It supports the skin barrier, making it especially useful when using stronger actives. Daily sunscreen use is recommended as part of a complete skincare routine.

What to combine it with

• Hyaluronic acid – enhances hydration by attracting water to the skin, helping improve moisture retention and overall skin comfort
• Ceramides – support barrier repair by reinforcing the skin’s protective layer, helping reduce water loss and sensitivity
• Retinoids – often combined to help reduce irritation, support the skin barrier, and improve overall tolerance during use

What NOT to combine it with

No major conflicts are commonly associated, but formulation, concentration, routine design, and skin sensitivity should be considered.

Side effects & adjustment period

Panthenol is generally well tolerated and unlikely to cause irritation. Side effects are rare, but individual sensitivities can occur. Because it is a gentle and supportive ingredient, it does not typically require an adjustment period.

Pregnancy & breastfeeding

Panthenol is generally considered safe to use during pregnancy and breastfeeding. When in doubt, consult a healthcare professional.

Best suited for

• Dry or dehydrated skin
• Irritated or sensitive skin
• Compromised skin barrier
• Skin undergoing active treatments

Skin types

Suitable for all skin types, including sensitive and reactive skin. Particularly beneficial for dry, dehydrated, or compromised skin, and helpful in maintaining balance in combination and oily skin.

Ingredient category: Humectant / skin soothing / barrier-support ingredient

Main benefits: Hydration, soothing, barrier repair, softness

Best for concerns: Dryness, sensitivity, irritation, compromised barrier

Common product types: Serums, moisturisers, treatments, barrier-repair products

Routine use: AM and PM

Sensitivity level: Low