4Gamer
Sharpen focus, reaction time and endurance for long sessions — clean energy, no sugar crash.
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4.8 / 5 from 100+ Amazon reviews
Supplements for Fitness, Gaming & Health
Backed By Science
Formulated in the UK and dosed at clinically meaningful levels — no proprietary blends, no fillers, no hype. Just supplements that do exactly what they say.
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Made in the UK
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Science-Backed
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Free UK Delivery
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Trusted by Thousands
The full range
Our Range
Eight focused formulations covering training, gaming, recovery, hydration, and sleep — each dosed at clinically meaningful levels and made in the UK.
Creatine
Pure creatine monohydrate to build strength, power and lean muscle. Mixes clear, no grit.
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Energy
Fast, clean pre-workout energy from caffeine and B-vitamins. All the drive, none of the jitters.
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Hydration
Rapid-absorbing electrolytes and vitamins to keep you going through every session.
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Magnesium
Everyday magnesium to support normal muscle function and ease tiredness.
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Recovery
Post-session amino acids and magnesium to help you rebuild and bounce back faster.
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Energy Gummies
The pre-workout energy hit in a convenient, great-tasting chewable gummy.
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Magnesium Glycinate
Highly absorbable magnesium glycinate for relaxation, deeper sleep and recovery.
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Find your fit
Shop by Goal
Whether you're training, gaming, recovering, or just trying to sleep better — start with the goal that matches your routine.
Energy
Clean lifts, sustained drive — for training and gaming sessions that go the distance.
Focus
Sharper reactions, calmer attention — formulated to keep your head in the game.
Recovery
Bounce back faster between sessions with the right ingredients post-effort.
Hydration
Electrolytes that actually replace what training takes out of you.
Sleep
Deeper rest, better mornings — magnesium-led formulations for proper recovery.
Why Science Fitness
Built On What Works
No proprietary blends, no trendy ingredients, no marketing fluff. Just clean, sensibly dosed formulations made to UK standards.
Science-Backed
Every product formulated against published research, not passing trends.
UK Made
Manufactured to UK standards in our Skipton facility, batch after batch.
Affordable
Premium formulations without premium markup — fair pricing on every line.
Results-Led
Ingredients dosed to clinically meaningful levels — never fairy-dusted.
Ingredients in focus
Real Ingredients, Real Evidence
Every formulation starts with compounds that are genuinely backed by published research — dosed at the levels those studies actually used, not a token sprinkle for the label.
Creatine, caffeine, electrolytes, magnesium and more: no proprietary blends, no fairy-dusting, no hiding behind buzzwords. Just ingredients that work, in amounts that do.
What customers say
4.8 / 5 from 100+ Reviews
Verified Amazon reviews from people who've actually used the range — the good, the honest, and the repeatable.
Genuinely noticed a difference
Been using the Energy formula for about three months now. I'm not someone who normally feels much from supplements but this one I genuinely noticed. Clean lift, no jitters, and no crash an hour later.
Steve
Verified
Excellent value
Tried a few of the bigger brands and Science Fitness honestly stacks up. The pricing is fair, dosing is sensible, and it actually works. Will be ordering again.
Amazon Customer
Verified
Hydration is brilliant
I do a lot of cycling in summer and the Hydration mix has become a staple in the bottle. Mixes well, doesn't taste artificial, and I'm not cramping the way I used to.
Matt R
Verified
Sleep has improved
Started taking the Magnesium Glycinate before bed on a friend's recommendation. Falling asleep easier and waking up feeling more rested. Genuinely impressed.
Karen Baxter
Verified
Does what it says
Two tablets in water before the gym and I can feel the difference within twenty minutes. No crash on the drive home either, which is what sold me.
Daniel H
Verified
Creatine that actually dissolves
Every powder I've tried ends up as sludge at the bottom of the shaker. These tablets dissolve properly and taste decent. 3g per tablet is a proper dose too.
Jordan P
Verified
Finally sleeping properly
Two glycinate capsules an hour before bed and I'm out like a light. None of the groggy morning feeling I've had with other sleep aids.
Sarah W
Verified
Solid electrolytes for long runs
Used the Hydration tabs through marathon training in the heat. No cramping, no stomach issues, and the lime mint flavour is actually refreshing.
Tom G
Verified
Refer & Win
Win a £100 Amazon Gift Card
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