Myprotein Alpha Pre-Workout Powder with Beta Alanine and Caffeine - Blue Raspberry - 600g vs Optimum Nutrition Gold Standard Pre-Workout

Pros

• ✓Strong, fast-onset energy and focus driven by 300mg caffeine paired with 250mg L-theanine for smoother delivery
• ✓Effective pump from an 8g citrulline malate dose, which is at the upper end of evidence-backed ranges
• ✓Good value for money — consistently praised as one of the more affordable high-stimulant pre-workouts
• ✓Pleasant, drinkable flavours across multiple options (Blue Raspberry, Strawberry Laces, Orange Mango, Orange)

Cons

• ✗Reported quality control issues in recent batches — powder turning green and hardening into solid lumps within weeks
• ✗300mg caffeine per serving is very high and unsuitable for caffeine-sensitive users or evening training
• ✗Not third-party tested, so label accuracy and contamination risk cannot be independently verified
• ✗Beta-alanine paresthesia (skin tingling) is strong and may be off-putting for beginners or those unused to it

Best For

Pros

• ✓Consistent energy boost without excessive jitters or crashes
• ✓Pleasant taste across multiple flavors
• ✓Moderate 175mg caffeine level suitable for those avoiding hardcore stimulants
• ✓Trusted brand with Informed Choice certification and third-party testing

Cons

• ✗L-Citrulline dosage (750mg) significantly below clinical effective range (6-8g)
• ✗Beta-alanine at 1.5g is half the clinically studied 3.2g dose
• ✗Uses dual artificial sweeteners (sucralose and acesulfame potassium)
• ✗Not suitable for vegans (contains milk and soya)

Best For