Evidence supporting the use of: Mixed carotenoids
For the health condition: Skin Care (general)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Mixed carotenoids (such as beta-carotene, lutein, lycopene, and zeaxanthin) are justified for use in general skin care based on scientific evidence, though the strength of this evidence is moderate. Carotenoids are pigments found in plants that act as antioxidants. Studies have shown that dietary carotenoids accumulate in human skin and may help protect against UV-induced skin damage by neutralizing free radicals and reducing oxidative stress. Clinical research indicates that supplementation with mixed carotenoids can increase the skin’s resistance to sunburn (measured as minimal erythema dose), improve skin hydration, and reduce signs of photoaging. For example, randomized controlled trials have demonstrated that daily supplementation with beta-carotene or lycopene for several weeks increases the skin’s photoprotective capacity. Furthermore, some studies suggest that carotenoids may improve skin appearance by enhancing skin tone and elasticity. However, the evidence is not uniformly strong for all carotenoids or all aspects of skin health, and the benefits are generally modest. More research is needed to determine the optimal types and dosages of carotenoids for skin health. Nonetheless, their use is supported by mechanistic and clinical data, making mixed carotenoids a scientifically validated option for general skin care.

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