I don't have sources on hand but I recently had my testosterone levels checked at a TRT office and they seemed to agree it's highest in your 20s and decreases a

I don't have sources on hand but I recently had my testosterone levels checked at a TRT office and they seemed to agree it's highest in your 20s and decreases after that. It was why they were so surprised to have me (24) getting my testosterone levels checked. Most of their clientele are men in their 30-40s+.