To help in building lean muscle mass, try mixing up your rep counts PrimeX Testo Max If you normally do 6-8 repetitions, try doing 4-6 repetitions PrimeX Testo Max Your muscles will be forced to adapt in a different way, and you will give your routine a fresh kick PrimeX Testo Max In this way, you will build your lean muscle mass faster PrimeX Testo Max

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