Testosterone 1000mg American brand hormone supplement lasting male hormone testosterone muscle growth Tribulus terrestris set

1、Testosterone is the most important sex hormone in men, secreted by Leydig cells and produced in small amounts by the adrenal glands.
✅Physiological functions
✅Sexual development and reproductive function
Fetal period: guides the formation of the penis and scrotum, and promotes the development of the prostate.
Puberty: triggers secondary sexual characteristics (voice change, body hair growth, prominent Adam's apple), testicle and penis development.
Adulthood: maintains sperm production (through supporting cell action), libido and erectile function.
✅Muscle and bone
Muscle building: promotes protein synthesis, increases muscle mass and strength (10 times stronger than estrogen).
Research: Testosterone replacement therapy (TRT) can increase muscle mass by 10%~15% (J Clin Endocrinol Metab).
Bone strengthening: stimulates osteoblasts and maintains bone density; low testosterone is a risk factor for osteoporosis in elderly men.

3. Metabolic regulation
Fat distribution: reduce subcutaneous fat and inhibit visceral fat accumulation (low testosterone can easily lead to "beer belly").
Carbohydrate metabolism: enhance insulin sensitivity, and the risk of diabetes in people with low testosterone increases by 2 times.
Erythropoiesis: stimulate the kidneys to secrete erythropoietin (EPO) to prevent anemia.

二、Consequences of testosterone deficiency