Synopsis

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

Carotenoids, such as beta-carotene, lycopene, lutein, and astaxanthin, are pigments found in plants that have been studied for their potential role in skin health, particularly in reducing wrinkles and photoaging. The scientific rationale centers on their antioxidant properties, which help neutralize free radicals produced by ultraviolet (UV) exposure—a major contributor to skin aging and wrinkle formation.

Several clinical studies have shown that supplementation with carotenoids, either through diet or oral supplements, can increase the skin's resistance to UV-induced erythema (redness) and may help improve skin hydration, elasticity, and overall appearance. For example, randomized controlled trials have demonstrated that oral intake of beta-carotene and lycopene can reduce markers of oxidative stress in the skin and may attenuate the formation of wrinkles over time. Astaxanthin, a potent carotenoid, has been shown in small human trials to improve skin elasticity and reduce fine lines when taken as a supplement for several weeks.

However, while the evidence base is growing, most studies are relatively small and of short duration. There is moderate scientific validation for the use of carotenoids in supporting skin health and reducing the appearance of wrinkles, but more large-scale, long-term studies are needed to fully establish their efficacy. Overall, carotenoids are supported by scientific evidence as adjuncts for skin protection and wrinkle prevention, primarily due to their antioxidant and photoprotective effects.

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