1st Endurance Optygen HP.
- Updated OptygenHP improves the body's utilization of oxygen, increases VO2 Max and anaerobic threshold while reducing lactic acid
- Provides 1000mg Beta-Alanine per serving which increases muscular endurance, boosts strength, improves exercise capacity and delays muscular fatigue
- HP has 5% rosavin-Rhodiola and is 67% more active than the 3% Rhodiola found in the original Optygen formula
- Newest version of HP has 50% more Beta-Alanine than previous formula