Is Testosteron useful for Haut?

Whether testosterone is useful for the skin cannot be answered simply. Testosterone and its derivatives (like DHT) influence the skin in multiple ways: they stimulate sebum production, can promote acne, and affect hair growth. Medically, testosterone is used for certain skin conditions such as lichen sclerosus, but only under strict medical supervision. The provided context contains no direct studies on testosterone and skin. Evidence from hormone research suggests that imbalances (e.g., in PCOS) can cause skin issues, but the evidence for therapeutic use of testosterone for skin problems is weak, mostly based on mechanistic or observational data. For healthy individuals, additional testosterone use without medical indication is not recommended and may even be harmful (e.g., skin aging, acne, increased hair loss). DNA tests for hormone gene variants (e.g., androgen receptor) have small effect sizes and are not clinically actionable. Conclusion: The evidence is unclear, and individual skin responses depend heavily on genetics, lifestyle, and hormonal status. Consult a dermatologist or endocrinologist for skin concerns.