Optimum Nutrition Serious Mass 5.45kg - Banana Lexi's on-the-go protein drink that provides

on-the-go protein drink that provides 20g of protein per bottle with only 90 calories

maximising ATP

nitric oxide precursors
and rare herbal extracts shown in research to promote intense vaso-expansion

This supplement is a great all-around choice for those looking to optimize recovery

promote protein synthesis

Optimum Nutrition Serious Mass 5.45kg - Banana Lexi's on-the-go protein drink that providesOptimum Nutrition Serious Mass provides 50g of protein and over 1,250 calories per serving. Its an ideal supplement for individuals aiming to increase their muscle mass and overall size. Serving Size: 2 scoops (334g) Servings Per Container: 16