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

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Synopsis

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

Astaxanthin is a carotenoid pigment found in certain algae and seafood, and its use in skin care is primarily supported by scientific evidence, though most studies are small or preliminary. Astaxanthin has strong antioxidant properties, which help neutralize reactive oxygen species (ROS) generated by UV radiation and environmental stressors, both of which contribute to skin aging, wrinkles, and loss of elasticity. Several clinical trials have demonstrated that oral supplementation or topical application of astaxanthin can improve skin moisture, elasticity, and reduce the appearance of fine lines and age spots. For example, a randomized, double-blind, placebo-controlled study published in 2012 found that 6 mg of astaxanthin daily for 8 weeks improved skin elasticity and reduced wrinkles in middle-aged women. Other studies have shown protective effects against UV-induced skin deterioration and reductions in transepidermal water loss. However, most research is short-term, involves small sample sizes, and is often funded by manufacturers. While the antioxidant rationale and some human evidence are compelling, large-scale, independent trials are needed to firmly establish its efficacy. Nonetheless, astaxanthin is widely used in skin care supplements and topical products, and its use for general skin health is supported by a moderate level of scientific evidence.

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Products containing astaxanthin

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