Stabilized vitamin C

Vitamin C is essential for the body's biological functions and overall health. It can increase collagen production in the skin, firming it and improving the health of its surface. It speeds up skin metabolism, helping minor wounds heal and preventing pigmentation marks or age spots from forming. It is the most important vitamin for skin regeneration and protection against harmful environmental effects and free radicals, which are responsible for premature skin ageing. It occurs naturally in fruit and vegetables, such as rosehips, acerola and sea buckthorn, where it acts as a water-soluble antioxidant sensitive to heat and oxidation. In cosmetics, it is used in the form of stabilised derivatives, such as Sodium Phosphate Ascorbyl, which provides better stability and penetration into the deeper layers of the skin without irritation.

Its mechanism of action includes powerful antioxidant protection: it neutralises free radicals in the aqueous phase of cells, preventing oxidative stress and premature ageing. It stimulates the synthesis of type I and III collagen, strengthens the skin barrier and supports regeneration. It limits melanin production, brightening the complexion, and when combined with vitamin E, it offers greater stability and effectiveness against UV damage. It soothes inflammation, reduces redness and speeds up healing. The recommended concentration in serums is 10-20 %, at which it delivers optimal effects without irritation.

Ideal for dry, dehydrated, sensitive and mature skin with pigmentation marks, hyperpigmentation or signs of ageing. It is also recommended for oily and acne-prone skin, as it regulates melanin and reduces inflammation without clogging pores. Suitable for anyone exposed to environmental stressors, such as UV radiation or pollution, in combination with SPF to enhance protection. For extremely sensitive skin, it is not recommended without a patch test first.

A study published in the Journal of Cosmetic Dermatology showed that vitamin C at a concentration of 10 %, applied for 12 weeks, improved skin hydration by 20 % and reduced fine lines by 15 % in women with photoageing. Further research in the British Journal of Dermatology demonstrated that topical vitamin C combined with vitamin E reduced UV-induced erythema by 40-60 % and increased the protection factor by up to 4 times. The stabilised form Sodium Phosphate Ascorbyl increases skin cell viability by 30 % compared with pure L-ascorbic acid.