Juliette Armand’s Provital D3 Serum consist of Provitamin D which is derived from bacterial fermentation (Biofermentation) offers multiple effects on the skin. It enhances the function of the skin barrier, has antimicrobial action on the skin and it protects it from the irritation caused by UV radiation. Recommended for atopic dermatitis and eczema. It reduces skin irritation and strengthens protection against ultraviolet radiation.