Abstract
Objective: Skin health, skin appearance and skin beauty are influenced by collagen composition of the dermis. Natural aging affects the structural integrity of the collagen network, resulting in drier skin, wrinkle formation and reduced skin elasticity. Orally ingested hydrolyzed collagen reaches the skin tissue and exerts beneficial effects on human skin from within. However, not only collagen peptides, but also micronutrients can beneficially affect skin appearance. Thus, dietary supplements for cosmetic and beauty effects containing combinations of collagen peptides and selected micronutrients are in demand. Aim of this study was to investigate the effect of a food supplement with collagen hydrolysate and micronutrients on skin beauty. The test product was assessed for its capability to reduce wrinkles and to improve skin hydration and collagen structure.
Highlights
Collagen is a moisture-retaining fiber protein that plays an essential role in the structure of the skin
Intake of collagen peptides resulted in a reduction of wrinkle depth in the facial area
The results presented in this study are in accordance with a previously published clinical trial in women, where the intake of 2.5 g collagen peptides resulted in a 7% and 20 % reduced wrinkle depth
Summary
Collagen is a moisture-retaining fiber protein that plays an essential role in the structure of the skin. About 70-80% of connective tissue consists of collagen, providing firmness and elasticity for the dermis, the middle layer of the skin [1]. The amount, structure and composition of collagen in the skin influence its external appearance. The moisture content of the skin, the texture of its surface and skin elasticity all contributes to skin beauty and are influenced by collagen characteristics. Natural aging affects the structural integrity of the dermis, and our skin tends to become drier and loses tension and elasticity, which results in thinner appearance and wrinkle formation. The main underlying reason is the diminishing collagen content, both due to reduced endogenous collagen production, and due to collagen breakdown, accelerated by external factors, such as UV radiation and certain lifestyle factors (i.e. smoking) [2,3,4]
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