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

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Kelp, a type of seaweed, is increasingly included in skin care products due to its rich content of vitamins (such as vitamin C and E), minerals (notably iodine), and bioactive compounds like polysaccharides and polyphenols. Laboratory studies and limited clinical research suggest that extracts from kelp species (such as Laminaria and Ascophyllum nodosum) may have antioxidant, anti-inflammatory, and moisturizing effects when applied topically. These properties are thought to help protect the skin from oxidative stress, soothe irritation, and support the skin barrier.

Some in vitro and animal studies have demonstrated kelp's potential to inhibit enzymes involved in skin aging, such as collagenase and elastase, and to reduce UV-induced skin damage. However, high-quality human trials are sparse, and most evidence comes from preliminary studies or is extrapolated from the known effects of its bioactive components.

Kelp has a traditional use in some Asian cultures for skin care, but its modern use is primarily scientifically motivated, based on its biochemical profile. While early findings are promising for general skin health, more robust clinical trials are needed to establish clear benefits and optimal formulations. Overall, the scientific evidence supporting kelp for general skin care is limited but growing.

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Products containing Kelp (various)

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