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People training with weights in a modern gym

UK partner programme

Affiliate programme for fitness creators and athletes

Earn commission promoting 100+ sports nutrition brands. Share products you actually use, track every referral, and get paid monthly. Applications are reviewed within 5 working days.

Apply now
Up to 10% Commission on referred sales
100+ Curated supplement brands
5 days Typical application review

How the programme works

A UK affiliate programme built for people who already recommend supplements

GymStack is the trading name of GYM STACK LTD, a UK sports nutrition retailer. Our affiliate programme is for fitness creators, coaches, personal trainers and competitive athletes who want to earn commission promoting products they actually use.

You get tracking links, a live dashboard and monthly payouts on qualifying referred sales — typically up to 10%, confirmed when you are approved. The catalogue covers sports nutrition from 100+ brands, including protein, creatine, pre-workout and daily wellness. Read more about us on the About GymStack page.

We look for honest recommendations and an engaged audience on Instagram, TikTok, YouTube or a blog. Follower count matters less than trust. If that is you, apply below — we reply from office@gymstack.uk.

Why partner with us

Built for creators who care about quality

10%

Commission on sales

Earn on every qualifying referred order. Rates are confirmed when you are approved, with monthly payouts.

100+

Brands people already search

Protein, creatine, pre-workout and wellness from Europe, the US and Canada — genuine UK stock.

Live

Real-time dashboard

See clicks, conversions and pending commission whenever you want, without waiting for a spreadsheet.

1:1

Partner support

Help with tracking links, discount codes where eligible, campaigns and product questions.

How it works

Start earning in three steps

Apply

Tell us who you are, your main profile, and the size of your audience. We review every application within 5 working days.

Get your links

Approved partners receive tracking links, brand assets, and a discount code where it fits your audience.

Earn monthly

Share products you use. Track performance in the dashboard and receive payouts on qualifying sales.

Apply to the GymStack affiliate programme

Takes a couple of minutes. Include your main profile link and a short note on who follows you. We email every applicant within 5 working days.

Fitness creator recording a workout video

For creators

Content that converts without compromising trust

Your audience follows you for honest recommendations. GymStack gives you access to the brands they already search for — with tracking that shows what actually sold.

  • Dedicated help for approved creators
  • Seasonal campaigns and new product launches
  • Custom discount codes where they fit your community
Runner training outdoors at sunrise

For athletes

Recommend what you use. Earn on every order.

Share the stacks you rely on — from pre-workout to recovery — with a UK retailer that stocks genuine product.

  • Product seeding for qualified athlete partners
  • Featured placement where it makes sense
  • Co-branded content when the fit is right

Community

Who we partner with

  • Person lifting weights in a gym
    Creator

    Fitness creators

    YouTubers, coaches and trainers sharing honest stack recommendations with their communities.

  • Athlete preparing for a training session
    Athlete

    Competitive athletes

    Runners, lifters and hybrid athletes who recommend the supplements they use in training.

  • Personal trainer coaching a client in the gym
    Coach

    Coaches & PTs

    Personal trainers and online coaches guiding clients on nutrition and supplementation.

Affiliate programme FAQs

Who can apply to the GymStack affiliate programme?

UK-based fitness creators, coaches, personal trainers and competitive athletes with an engaged audience on Instagram, TikTok, YouTube or a blog. You do not need a huge following — we care more about whether your audience trusts your product recommendations.

How much commission do GymStack affiliates earn?

Rates vary by partner and product category, typically up to 10% on qualifying referred sales. Your exact rate is confirmed when your application is approved. Commission is tracked in your affiliate dashboard.

When and how do GymStack affiliates get paid?

Approved affiliates receive monthly payouts on qualifying sales. You can check earnings and pending commission in the dashboard at any time. We will confirm payout details when you are accepted.

Do you send free products to affiliates?

Product seeding is available for selected partners based on audience fit and a clear content plan. Mention it in your application if you want to be considered.

How long does GymStack affiliate approval take?

We aim to review every application within 5 working days. You will get an email from office@gymstack.uk once approved, or if we need more information.

Is there a minimum follower count?

No fixed minimum. Tell us your main platform and audience size so we can see if the fit is right. Consistent, trusted content usually beats a large but disengaged following.

Can I have a custom discount code?

Yes, where it makes sense for your audience. Approved partners can request a unique code as well as tracking links.

Do I need to be in the UK?

The programme is aimed at UK-based creators and athletes, because GymStack is a UK retailer with UK pricing, delivery and customer service. If your audience is mainly UK shoppers, say so in the form even if you travel.