Pre-Workout Complex — Stimulant Free
Stimulant-free pre-workout with clinical doses: 6g L-citrulline malate, 3.2g CarnoSyn® beta-alanine, 2g betaine anhydrous, 1g creatine HCl.
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- Free UK delivery over £30
- 14-day hassle-free returns
- Secure checkout, audit-logged
- Manually compliance-reviewed
Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Many people want performance benefits without caffeine — particularly for evening training or those sensitive to stimulants. Our stimulant-free formula uses science-backed performance ingredients at clinical doses:
- L-Citrulline malate (6g): pumps, blood flow, reduced fatigue
- CarnoSyn® beta-alanine (3.2g): endurance, lactic acid buffering
- Betaine anhydrous (2g): power output, hydration
Benefits
- ✓Endurance
- ✓Pumps
- ✓Power
- ✓Focus
- ✓Stimulant-free
Complete your stack
✨What customers say
From 20 reviews★ 4.5Customers appreciate the stimulant-free formula that provides effective performance boosts with proper doses of citrulline and beta-alanine, allowing for great pumps and energy without sleep disruption.
Some users report a noticeable tingling sensation from beta-alanine, which, while harmless, may be uncomfortable for those sensitive to it.
This product is ideal for evening workouts and for individuals who are caffeine-sensitive or seeking a pre-workout without stimulants.
Customer reviews
- ★★★★☆Liam C.09/05/2026Slightly tingling from beta-alanine
The beta-alanine tingle is noticeable but harmless. Great performance boost during HIIT sessions.
- ★★★★☆Liam C.26/04/2026Slightly tingling from beta-alanine
The beta-alanine tingle is noticeable but harmless. Great performance boost during HIIT sessions.
- ★★★★★Sophie R.25/04/2026Perfect for evening workouts
I train at 7pm and cannot use caffeinated pre-workouts. This gives me a great pump and energy without the stimulants affecting my sleep.
- ★★★★★William L.21/04/2026Finally a stimulant-free formula with proper doses
Most stimulant-free pre-workouts are underdosed. This one has clinical amounts of citrulline. Excellent pump.
- ★★★★★Grace S.21/04/2026Finally a stimulant-free formula with proper doses
Most stimulant-free pre-workouts are underdosed. This one has clinical amounts of citrulline. Excellent pump.
- ★★★★★Charlie D.16/04/2026Finally a stimulant-free formula with proper doses
Most stimulant-free pre-workouts are underdosed. This one has clinical amounts of citrulline. Excellent pump.
- ★★★★☆Lisa T.Verified buyer16/04/2026Perfect for evening workouts
Can train at 8pm and sleep by 10pm. No caffeine means no sleep disruption. The citrulline + pump ingredients still deliver genuine performance. Good honest formulation.
- ★★★★★Noah H.14/04/2026Perfect for evening workouts
I train at 7pm and cannot use caffeinated pre-workouts. This gives me a great pump and energy without the stimulants affecting my sleep.
- ★★★★☆Emma W.13/04/2026Good for caffeine-sensitive users
Get all the benefits of a pre-workout without the anxiety. Citrulline and beta-alanine at proper doses.
- ★★★★★Lily D.13/04/2026Finally a stimulant-free formula with proper doses
Most stimulant-free pre-workouts are underdosed. This one has clinical amounts of citrulline. Excellent pump.
- ★★★★☆Hannah O.10/04/2026Good for caffeine-sensitive users
Get all the benefits of a pre-workout without the anxiety. Citrulline and beta-alanine at proper doses.
- ★★★★☆Noah H.07/04/2026Slightly tingling from beta-alanine
The beta-alanine tingle is noticeable but harmless. Great performance boost during HIIT sessions.
- ★★★★☆Jack N.25/02/2026Good for caffeine-sensitive users
Get all the benefits of a pre-workout without the anxiety. Citrulline and beta-alanine at proper doses.
- ★★★★★Poppy W.23/02/2026Perfect for evening workouts
I train at 7pm and cannot use caffeinated pre-workouts. This gives me a great pump and energy without the stimulants affecting my sleep.
- ★★★★☆James T.12/02/2026Good for caffeine-sensitive users
Get all the benefits of a pre-workout without the anxiety. Citrulline and beta-alanine at proper doses.
- ★★★★★Joshua E.09/02/2026Perfect for evening workouts
I train at 7pm and cannot use caffeinated pre-workouts. This gives me a great pump and energy without the stimulants affecting my sleep.
- ★★★★★Chris B.23/12/2025Science-backed formula
Pharmacist checked the ingredients. L-citrulline at 6g (proper dose), beta-alanine at 3.2g (clinical dose), tyrosine at 2g (evidence-based for focus). None of the underdosed proprietary blend rubbish. Actually works.
- ★★★★☆Rachel K.Verified buyer02/12/2025Good for cardio
Using this before long cycling sessions rather than gym. The vasodilation from citrulline improves endurance performance. No crash afterwards. Tastes good mixed in 400ml water.
- ★★★★★Mike C.Verified buyer19/09/2025Same pump, none of the crash
Trained with stimulant pre-workouts for years then started getting anxiety and sleep disruption. Switched to this. The pump from citrulline is real, focus is there, and I sleep fine after evening sessions.
- ★★★★★Hannah W.Verified buyer30/08/2025Finally a pre-workout without jitters
Anxiety and caffeine sensitivity mean stimulant pre-workouts are out. This stimulant-free version has citrulline for blood flow, beta-alanine for endurance, and tyrosine for focus. Actual performance improvement without racing heart.
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