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A rising fitness craze fueled by social media is pushing many men in their 20s and 30s to try testosterone boosters. While the goal of stronger bodies and more energy is appealing, medical experts warn of real risks, including potential damage to fertility.

In gyms and online shops across Thailand, testosterone boosters range from herbal blends to injectable hormones. Aggressive marketing and influencer endorsements often promise quick gains, but doctors caution that the benefits may come at a steep personal cost. Self-prescribing and unsupervised use raise serious health concerns.

A new wave of fitness culture and social media influence has driven increasing numbers of men—including many in their 20s and 30s—to use testosterone supplements in pursuit of enhanced masculinity, muscle gain, and sexual vitality. However, recent research and expert warnings are raising red flags: these supplements, widely marketed as a path to becoming an ‘alpha male,’ can actually cause infertility, with potentially irreversible effects.

Across gyms and online platforms in Thailand and worldwide, testosterone boosters—ranging from herbal products to powerful hormone injections—are being promoted as quick solutions for increased strength, confidence, and libido. This market boom has been further fuelled by aggressive advertising, gym trainer recommendations, and the influence of fitness influencers online. Yet, experts are cautioning that the promised benefits may come at the cost of a man’s future ability to father children, and that misuse can have wider health implications (NDTV).