Panthenol, also known as provitamin B5, is one of the most appreciated cosmetic ingredients thanks to its hydrating, soothing and skin-repairing properties.
Widely used in skincare and haircare products, panthenol is valued for both its effectiveness and its excellent skin tolerability, making it suitable even for sensitive skin.
But what exactly does panthenol do, and why should you include it in your daily skincare routine?

What Is Panthenol?
Panthenol is a water-soluble molecule and the precursor of pantothenic acid, also known as vitamin B5, an essential nutrient involved in numerous cellular metabolic processes.
When applied to the skin, panthenol is converted into vitamin B5, helping support the skin's natural functions and overall health.
Thanks to its hydrating, soothing and skin-repairing properties, panthenol is widely used in a variety of cosmetic formulations, including face creams, serums, cleansers and haircare products.
Panthenol Benefits for Skin and Hair
Hydration
One of panthenol's most valuable properties is its powerful humectant action. By attracting and retaining water, it helps visibly improve skin hydration and strengthen the skin barrier, reducing discomfort and the sensation of tight and dry skin.
When the skin retains adequate moisture, it immediately appears healthier, smoother and more elastic. Well-hydrated skin also supports a more efficient skin barrier and contributes to maintaining a youthful-looking complexion.
Soothing Action
Panthenol is one of the most widely used cosmetic ingredients for its soothing and calming properties. It is particularly effective in helping reduce redness, irritation and persistent itching, making it an excellent choice for sensitive or stressed skin.
Using skincare products containing panthenol helps restore skin comfort while relieving feelings of tightness and irritation.
Thanks to these soothing properties, panthenol is especially beneficial after shaving, sun exposure or excessive exfoliation.
Support for the Skin Barrier
Another key benefit of panthenol is its ability to support the skin's natural barrier function.
A healthy skin barrier is essential for protecting the skin against external aggressors such as pollution, temperature changes, wind and cold weather. In addition to improving hydration, panthenol promotes the synthesis of fatty acids and sphingolipids, which, together with ceramides, are essential components of the skin's lipid barrier. These lipids help reduce transepidermal water loss (TEWL) and protect the skin from dehydration.
Hair Health
Panthenol is not only beneficial for the skin but is also widely used in haircare products.
Its moisture-retaining properties help keep the hair hydrated, improving softness, shine and overall appearance.
In addition, panthenol helps strengthen the hair fiber, reducing breakage and leaving hair healthier, smoother and more resilient.
Who Should Use Panthenol?
Panthenol is an extremely versatile and well-tolerated ingredient that helps support the health of both the skin and hair. Although it is suitable for all skin types, all ages and daily use, it is especially beneficial for:
- sensitive, reactive and delicate skin
- dry and dehydrated skin
- damaged, red or irritated skin, including after shaving or sun exposure
- skin stressed by external factors such as wind, cold weather and pollution
- sensitive, irritated or dehydrated scalp
- dry, dull and brittle hair
- superficial skin damage
- children's delicate and easily irritated skin
Its excellent tolerability also makes panthenol an ideal ingredient for both simple daily skincare routines and formulations combined with other hydrating and soothing ingredients, such as collagen, hyaluronic acid and bisabolol.
In addition, thanks to its soothing and skin-supporting properties, panthenol can help restore skin comfort when the skin barrier has been compromised by the incorrect or excessive use of potent cosmetic ingredients, such as exfoliating acids or retinoids.
Panthenol in ERNESI 1978 Formulations
At ERNESI 1978, panthenol is carefully selected for its proven effectiveness and excellent skin tolerability, reflecting our cosmetic philosophy of combining science with gentle skincare.
You can find panthenol in formulations specifically designed to respect the skin's natural balance and support its physiological functions every day, including:
Conclusion
Panthenol is a multifunctional and highly effective cosmetic ingredient. Thanks to its hydrating, soothing and skin-supporting properties, it plays a key role in helping maintain healthy, resilient and radiant skin and hair.
Incorporating panthenol into your daily skincare routine means choosing a science-backed approach based on functional ingredients that work in harmony with the skin's natural physiology.