Influence of supplementation with a curly kale extract on cutaneous carotenoids, radical scavenging activity and skin lipids

Antioxidants are well known to prevent cell damage, premature skin aging and skin cancer because they neutralize free radicals which are formed by stress, UV irradiation and other oxidative noxes. Carotenoids can be enriched in the skin by nutrition and recently it could be shown that skin with high level of cutaneous carotenoids correlate with a younger skin. The question arises whether orally administered extract from curly kale (Brassica oleracea L. ssp. oleracea var. sabellica L.) rich in carotenoids increase cutaneous carotenoids, and if this increase is correlated with an increase in radical scavenging act…