Vitamin B3
A Regenerating and Protective Ingredient for the Skin
Vitamin B3, also known as niacin or niacinamide, plays an essential role in energy metabolism and maintaining skin balance. It promotes skin regeneration, stimulates collagen production and contributes to epidermal hydration. Its protective action against the harmful effects of UV rays makes it a key ingredient in skin care.
The benefits of vitamin B3 for the skin
1. Regeneration and production of collagen
Vitamin B3 supports cell renewal and stimulates collagen synthesis, helping to improve skin elasticity and firmness. It helps prevent signs of aging and promotes more supple and resilient skin.
2. Protection against external aggressions
Thanks to the niacin it contains, vitamin B3 acts as a natural sunscreen, protecting the skin from the harmful effects of UV rays and oxidative stress. This action helps prevent skin damage and premature aging.
3. Hydration and skin balance
Vitamin B3 helps regulate skin hydration by strengthening the skin barrier. It keeps skin well nourished, reducing dryness and feelings of discomfort.
4. Overall role in the body
In addition to its skin benefits, vitamin B3 is involved in the production of various lipids and their derivatives, such as bile salts (essential for the digestion of fats) and steroid hormones (corticosteroids, estrogens, testosterone). It also plays a key role in the proper functioning of the nervous system and interacts with other B vitamins, including B1 and B21, to optimize its effects on the body.
Why does Demain Beauty use this ingredient?
Demain Beauty has chosen vitamin B3 for its multiple benefits on the skin. Its regenerating, moisturizing and protective action makes it an essential active ingredient for healthy and luminous skin.
Extraction and integration into care
The vitamin B3 used by Demain Beauty comes from natural sources and is integrated into formulations suitable for all skin types. Present in serums, creams and targeted treatments, it guarantees long-lasting and optimal effectiveness.
Thanks to its many properties, vitamin B3 is an essential ally for protected, balanced and revitalized skin. Its incorporation into Demain Beauty treatments ensures a natural and effective skincare routine, suitable for all skin types.
FIND THIS INGREDIENT IN DEMAIN BEAUTY PRODUCTS





A routine to take care of your skin every morning, while respecting your skin microbiota.





1 product, 11 powers.
The French Magic Balm is the new multi-use treatment from Demain Beauty, intended for dry and damaged skin. Thanks to it, the skin is supple, soft and comfortable.
A true Swiss army knife, this multi-purpose balm, enriched with prebiotics and probiotics, repairs and revitalizes the skin. Respectful of the skin microbiota, it is composed of 100% ingredients of natural origin and offers a unique sensory texture.










Composed of 10 grams of collagen, a high concentration of hyaluronic acid, vitamin C and prebiotics, Age With Grace powder, ingested daily, firms and plumps the skin while providing elasticity and density.
Acts from 28 days*:
- Wrinkle reduction
- Less brittle, silkier nails and hair
- More radiant complexion
Tasteless and odorless. Available in discovery format
*Clinically proven results.
Also discover our complete range of food supplements for the skin .







Highly enriched with Prebiotics, a blend of four probiotic strains, turmeric root extract, and organic artichoke leaf.
100%Natural, COMOS ORGANIC certified, Microbiome friendly, Vegan, 100% Made in France
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