1. Gonzalez, S., Astner S., et al. (2003). "Dietary lutein/zeaxanthin decreases ultraviolet B-induced light epidermal hyperproliferation and acute inflammation in hairless mice." J Invest Dermatol 121: 399-405.

2. Van de Leun, J.C. (1996). "UV Radiation from Sunlight: Summary, Conclusions, and Recommendations." J Photochem. Photobiol. B: Biol. 35: 237-244.

3. Podda, M., Traber, M.G., et al. (1998). "UV-Irradiation depletes antioxidants and causes oxidative damage in a model of human skin." Free Rad. Biol. Med. 24: 55-65.

4. Morganti, P., Bruno, C., et al. (2002). "Role of topical and nutritional supplement to modify the oxidative stress." International J Cosmetic Science 24:331-339.

5. Morganti P., Palambo, P., et al. (2006). "New Evidence for Efficacy of Lutein/Zeaxanthin in Skin Health." Beyond Beauty Paris 2006 Conference Abstract.