6 must-haves, 4 red flags. Save this.
2,000–5,000 IU — deficiency lowers T.
10–15 mg zinc, 200–400 mg magnesium glycinate.
200 mg standardized — lowers SHBG.
600 mg KSM-66 — lowers cortisol.
Hidden doses = zero accountability.
OTC aromatase inhibitors are marketing.
Best Testosterone Boosters for Men Over 40