Rejuvaveen

Rejuvaveen is an oat extract from oat bran ( Avena sativa ) grown in Sweden, produced by the British company Oat Cosmetics. It comes in the form of a fine cream-coloured powder, cold-water dispersible, with the full active profile of oat bran preserved. The extract contains ~30% oat beta-glucan , ~30% starch and ~5% lipids containing ceramides, triacylglycerols and sterols. Tryptophan in trace amounts (13 mg/100 g) complements the profile with an amino acid component. Oat beta-glucan has a linear structure with β-1,4 glycosidic bonds (70%) and β-1,3 bonds (30%) — thanks to this structure it penetrates through the intercellular matrix into the epidermis and dermis, where it acts directly at the cellular level. Key benefits Telomere protection: an in vitro study recorded +112% telomerase activity after 3 days and −86% slowing of telomere shortening after 42 days. Telomeres are the protective ends of chromosomes — their gradual shortening is a direct marker of cellular ageing. Collagen protection against UV-A: an ex vivo model demonstrated −11% MMP1 levels compared to UV-A stress. MMP1 is a collagenase responsible for the enzymatic degradation of type I collagen. Hydration: +37% after 7 days and +35% after 28 days compared to placebo Skin roughness: reduction of Stm and Sa parameters by 12% after 56 days compared to baseline Desquamation (scaling): −79% compared to placebo after 28 days Luminosity: +139% local skin brightness after 28 days compared to placebo Gene expression: modulation of key genes of skin cells in vitro — SOD1/2 +34% , SIRT1 +65% , HNRNPD +130% , NQO1 +230%