Experience the power of Origin Stim-Free Pre-Workout. A hard-hitting no-nonsense formula, packed with optimal doses of research-backed ingredients, and zero caffeine.

We’ve refined our powerful pre-workout blend by removing caffeine to create a fully charged, stimulant-free solution, designed for you to make the most out of every session. Cut the caffeine, ignite your workout. 

Performance Advisory Board

Bringing together world-class scientists, doctors, and athletes to shape innovation at Myprotein — combining cutting-edge research with real-world testing to create solutions that actually deliver, for everybody. Find out more about our Performance Advisory Board.

• Stim-free
• 8.0g of L-citrulline DL-malate
• 3.5g beta alanine

For those who train late at night or simply prefer to avoid caffeine, Origin Stim-Free Pre-Workout will help extract the most from every session, without interrupting your sleep schedule.

Plus, we’ve added a whole host of popular and highly researched ingredients, including 8g of citrulline malate, 3.5g of beta alanine, 4g of L-arginine alpha-ketoglutarate, 250mg of L-tyrosine and 200mg of choline.

Stim-free through choice. Original through dedication.