What role does LCT play in Haut?

The role of LCT (lactase gene) in skin is not well established. LCT is primarily expressed in the intestine to digest lactose; skin expression is negligible. No strong evidence links LCT variants directly to skin health or conditions. Any claims about LCT affecting skin via lactose metabolism or inflammation are speculative and lack human data. The evidence level is unclear. Consumers should be cautious of DNA tests suggesting LCT influences skin, as this is not supported by current science. If skin issues are present, focus on proven factors like UV protection, hydration, and dermatological advice rather than genetic testing for LCT.