These contain carbohydrates, hygroscopic active ingredients; that is, they can absorb water and therefore help retain water in the stratum corneum.
This is why a complex of red fruits is recommended when formulating cosmetic products with a moisturising action.
They also contain α-hydroxy acids (AHA), which increase corneocyte cohesion in the innermost layers of the skin, promoting a thinning of the stratum corneum, as well as improving the flexibility of the skin surface. This stimulation of cell regeneration is recommended when formulating cosmetic products with an exfoliating action.
Red fruits are also antioxidants, since they contain phenolic compounds (anthocyanosides) and vitamin C, which gives them anti-ageing properties.