Optimum Nutrition Gold Standard BCAA Train+Sustain

Gold Standard BCAA™ can help you during intense training while supporting your immune system & reducing tiredness*, so you can hit your next workout.

This is a high quality intra-workout which should be taken by anyone who wants muscle & immunity support during & after physical exercise.

• 5 g BCAAs in 2:1:1 ratio 
• Vitamin C and zinc support immunity
• Magnesium for muscle support
• Magnesium and vitamin C to reduce tiredness and fatigue
• Unique formula that contains Rhodiola rosea and zinc