What customers say

4.9 / 5

Rated by people who train

Verified 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 purchase

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 purchase

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 purchase

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 purchase

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 purchase

My ranked-night staple

4Gamer is sharper than an energy drink and my aim doesn't fall off a cliff at midnight. Wish I'd found it sooner.

Liam Verified purchase

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 purchase

Works well, stiff lid

The Recovery mix genuinely helps with DOMS after leg day. Only gripe is the lid can be stiff to get off with sweaty hands — hence four stars.

Chris M Verified purchase

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 purchase

Dangerously tasty

Have to stop myself eating the gummies like sweets. Nice steady lift for the afternoon slump at work.

Becca Verified purchase

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 purchase

Good value magnesium

Does the job for post-gym tiredness and the lemon flavour is pleasant. Knock a star off for the fizz taking a while to settle.

Aisha K Verified purchase

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