CHATSWORTH, Calif. Prolab Nutrition has introduced two new products—Prolab Beta Alanine Extreme and Prolab Advanced Caffeine—the company announced Wednesday.

According to the company, supplementing with beta-alanine has been shown to delay muscle-fatigue to help bodybuilders maximize their growth-stimulating reps. And Advanced Caffeine helps stimulate calorie-burning, enhances energy and performance, strengthens endurance and stamina, and delays the onset of muscle-fatigue.