Research carried out by Kyung Hee University in 2011 evaluated the efficiency of royal jelly on UV-induced photoaging of the skin. This study was based on many reviews addressed the unique component of royal jelly, 10-DHA (10-hydroxy-2-decenoic acid), which can stimulate the synthesis of collagen. The results of the study showed increased levels of procollagen type I and transforming growth factor (TGF-b1) of UV-irradiated human-skin fibroblasts treated with royal jelly and 10-HDA. Hence, the scientists suggested that royal jelly may shield the skin from UVB-induced photoaging by enhancing collagen production.


Reference: Park H, Hwang E, Lee K, Han S, Cho Y, Kim S, Royal Jelly Protects Against Ultraviolet B–Induced Photoaging in Human Skin Fibroblasts via Enhancing Collagen Production, J Med Food 14 (9) 2011, 899–906.