What to watch with Skincare DNA and Haut?

When considering DNA-based skincare tests, caution is warranted. Most analyzed gene variants have very small effects on skin aging, hydration, or collagen production. The resulting product recommendations (e.g., specific creams or supplements) are often based on correlational studies, not randomized controlled trials. A reputable test may offer a rough orientation, but it does not replace a dermatologist's advice. Be aware that these tests are not reviewed by the FDA or EMA. Evidence grade: marketing/unclear. Caveat: Ingredients like retinol or vitamin C are well-studied in general, but the genetic 'personalization' lacks solid scientific backing.