Choosing the right dosage of testosterone propionate depends on factors like age, experience level, and fitness goals. Beginners typically start with 50–100mg every other day, while experienced users may take 100–200mg. Medical supervision is essential, as improper dosing can cause side effects like hormonal imbalances and cardiovascular issues. Blood tests help monitor testosterone levels, estrogen conversion, and overall health. Body composition, metabolism, and cycle duration also influence the ideal dosage. Always follow a structured plan, including post-cycle therapy (PCT) to restore natural hormone production. Consulting a doctor or endocrinologist ensures safe and effective use.