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DHA

Description

Dihydroxyacetone (DHA) is a colorless sugar compound derived from plant sources such as sugar beets and sugar cane. It is widely used in the cosmetic industry as the primary active ingredient in sunless tanning products. DHA works by interacting with amino acids in the skin's surface layers, creating a browning effect known as the Maillard reaction.

When applied topically, DHA typically produces a tan-like color within 2-4 hours, which fully develops over 24-72 hours. The resulting color can last for 5-7 days as the skin naturally exfoliates. DHA is approved by the FDA for external application and is considered safe for most skin types.

The concentration of DHA in products ranges from 1% to 15%, with higher percentages producing darker results. It's often combined with other ingredients like erythrulose for a more natural-looking tan. While DHA provides cosmetic color, it offers minimal UV protection (SPF 3 or less). Therefore, it should not be relied upon for sun protection.

Some individuals may experience mild skin irritation or allergic reactions to DHA. Proper application technique is crucial to avoid streaking or uneven coloration.