What to watch with Testosteron and Haut?

Testosterone affects the skin primarily by increasing sebum production, which can lead to oily skin and acne, especially during puberty or testosterone therapy. It also promotes androgenetic alopecia in genetically susceptible individuals. A DNA test like MyBody-X may examine variants in the androgen receptor (AR) or genes such as SRD5A2 (5α-reductase), which modulate testosterone metabolism. However, the evidence for these genetic markers is largely mechanistic or based on small studies; effect sizes are modest and polygenic. Lifestyle, diet, and environment play major roles. For someone on testosterone therapy (e.g., transgender men or hypogonadism), monitoring skin changes is important. A genetic test alone cannot predict individual skin responses. Be cautious of marketing claims that overstate the predictive power of single genes. Practical advice: maintain a consistent skincare routine, consult a dermatologist if acne or hair loss develops, and consider that most skin issues are manageable with standard treatments. Evidence level: mechanistic/unclear.