Cosmetic skincare products are essentially made from water and active ingredients (plant-based, mineral, or synthetic). Among them: provitamin B5. But why is it so common in cream formulations? What are its properties? And above all, what are its real benefits for the skin?
What is provitamin B5?
The provitamin B5, also known as panthenol, is the alcohol analogue of vitamin B5. Indeed, both share an almost identical molecular structure, as well as similar effects on the body. When absorbed, provitamin B5 is rapidly converted into vitamin B5 and used by the body for various purposes:
- macronutrient metabolism;
- synthesis of hormones ;
- growth and resilience of the skin, hair appendages, and mucous membranes.
Furthermore, provitamin B5 comes in two forms: L-panthenol and D-panthenol. However, only D-panthenol can be converted into vitamin B5 by the body. It is therefore the form most commonly used, particularly in the pharmaceutical sector and the cosmetics industry. It is primarily used as a moisturising and healing agent in skincare products.
What are the properties of provitamin B5?
Provitamin B5 is first and foremost known for its exceptionally high tolerance and very rarely causes allergic reactions or irritation. It is no coincidence that it is trusted in the formulation of baby skincare products, including those designed to soothe nappy rash in infants.
Its second key characteristic is that it penetrates the skin and mucous membranes very easily, which facilitates its oxidation and conversion into antioxidant vitamin A. This property applies both when panthenol is applied topically and when it is taken orally (for example, dietary supplements enriched with provitamin A).
Another property: panthenol has no scent or colour, is highly viscous, and is slightly bitter in taste. It is also hygroscopic, meaning it binds readily to water — making it a go-to ingredient in both pharmaceuticals and cosmetics.
Why apply a provitamin B5-enriched cream to your skin?
The properties described above shed light on the benefits of provitamin B5: it is a premium cosmetic active ingredient that is at once soothing, moisturising, and restorative.
- Soothing: panthenol, naturally anti-inflammatory, helps relieve irritated skin, itching, sunburn, redness, blemishes that turn inflammatory (such as acne), and painful wounds or scars…
- Moisturising: much like hyaluronic acid, provitamin B5 attracts and retains moisture, thanks to its hygroscopic nature and viscous texture. It has remarkable capacity to deeply hydrate the dermis and is ideal for very dry skin, rough or flaky skin. It also supports the quality of the hydrolipidic film (the blend of sweat and sebum that forms a protective barrier on the epidermis), helping to maintain hydration in the deeper layers of the skin. A well-hydrated skin is, as we know, healthier skin: softer, more supple, and better able to regenerate.
- Restorative: a benefit that follows directly from the above. Without water, skin cannot heal or regenerate. It all comes down to cells: they need water to survive, multiply, migrate, and renew themselves. A lack of skin hydration leads not only to visible dehydration (dry, inelastic, flaky appearance), but also to deeper damage (loss of keratin, pigmentation issues, skin ageing, slower healing, loss of suppleness and resilience). By boosting hydration, provitamin B5 supports the skin’s health and its capacity for regeneration.
Is provitamin B5 recommended for stretch marks?
Absolutely — both as a preventive measure and as a treatment.
As a preventive measure, by maintaining optimal skin hydration, it helps prevent the possible appearance of stretch marks during high-risk periods (puberty, pregnancy, postpartum, weight fluctuations…). Dry or dehydrated skin is far more prone to developing stretch marks, as its “mechanical” qualities (elasticity, resilience) are compromised.
As a treatment, panthenol offers genuine soothing, healing, and restorative properties. Regular application of a provitamin B5-based product helps calm the “fire” of new stretch marks, which are often inflammatory, and prevents them from leaving a lasting mark on the skin. It can also relieve itching, which is sometimes associated with stretch marks. And for older, white stretch marks, it can also be beneficial. By stimulating cellular activity, it encourages skin cells to produce new collagen fibres, while locally replumping the skin.
If you’re looking for an effective anti-stretch mark treatment enriched with provitamin B5, discover our Repairing Cream : it combines nourishing macadamia oil with emollient and restorative panthenol. It applies effortlessly and leaves skin feeling soft, supple, and radiantly healthy. Users agree: 98% would recommend it, with a visible reduction in the appearance of stretch marks in just 14 days!