Is Testosteron useful for skin aging?

The question whether testosterone is useful for skin aging is not directly addressed in the provided contexts. No specific studies or test markers from MyBody-X data support such an effect. Generally, testosterone can influence collagen synthesis and sebaceous gland activity, which might theoretically alter skin structure. However, evidence for an anti-aging benefit is weak and mostly based on animal or mechanistic data. Moreover, testosterone therapy carries risks such as acne, hair loss, and cardiovascular effects. Without robust clinical trials and without direct relevance to the genetic or biomarker tests discussed here, self-medication should be avoided. The evidence level is therefore rated as 'unclear'.