The testosterone discussion is often indirect—via stress reduction and sleep improvement. Some studies report increases in certain groups or improvements in semen parameters, but results are not universal and clinical relevance varies. Claims like “it definitely boosts testosterone” are not scientifically accurate. Testosterone is influenced by sleep, energy balance, body composition, training load, diseases, and medications. If hormones are your goal, measure levels with lab tests and follow a clinician’s plan. Supplements may be only a small supportive part of that plan.