The UK sports nutrition market is worth over £800 million and growing. Every month, new supplement brands launch with strong products and weak websites. The product quality often isn't the problem - the online selling experience is.
If you're launching or relaunching a supplement e-commerce site, here's what actually separates the stores that convert from the ones that don't.
Start with brand identity, not product pages
Most supplement founders jump straight to uploading products. That's understandable - they've worked hard on the formulations and want to sell. But without a coherent brand identity, a product catalogue is just a list.
Buyers in the supplement space are comparison shoppers. They'll look at three or four options before committing. If your site looks inconsistent - different fonts across pages, a logo that doesn't scale properly, product images that clash - you've given them a reason to leave.
Define your visual language before you design anything else. Pick a palette that reflects your brand positioning (not just what looks exciting in isolation), apply it consistently across every touchpoint, and make sure it works equally well on a product page and on an Instagram story.
Build your catalogue structure around goals, not categories
Protein, pre-workout, creatine, vitamins - these are industry-standard categories, and they're also meaningless to a first-time buyer trying to figure out where to start.
Organise your catalogue around the customer's goal: build muscle, improve endurance, speed up recovery, lose body fat. A visitor who lands on your site knowing they want to "build muscle" should be able to get to the right products in two taps, not six.
Filter systems matter here too. A well-implemented filter by goal, format (powder, capsule, bar), and price lets a confident buyer self-serve without needing to chat to someone. Most supplement shoppers would rather filter than ask.
Mobile checkout is non-negotiable
According to recent data, over 65% of UK e-commerce purchases in the health and fitness category happen on mobile. Your checkout flow needs to be designed for a phone screen first - and tested on one, not just resized from desktop.
Common mobile checkout failures include: too many form fields, no Apple Pay or Google Pay option, confirmation emails that don't render correctly on mobile. Any one of these can push your cart abandonment rate well above the sector average of 34%.
Add a layer of expertise
Supplement buyers are sceptical by nature. They've encountered vague marketing before - "advanced formula", "maximum strength" - and they've learned to distrust it.
If you or your team genuinely know your ingredients, let that show. Short editorial content - ingredient explainers, stacking guides, dosage advice - does two things: it builds trust with new visitors, and it gives search engines something substantial to rank.
This content doesn't need to be long. A 200-word breakdown of why a particular creatine formulation includes HMB, and at what ratio, is more useful to a buyer than a paragraph of brand storytelling.
Get your product photography right before launch
Low-quality product images undermine everything else you build. In the supplements space, where buyers can't pick up the product and read the label, images carry an outsized amount of persuasive weight.
Invest in clean studio photography for every SKU. Flat lay shots work. Lifestyle shots - a product next to gym kit, post-workout - add context. What doesn't work is inconsistent backgrounds, different scales across products, or mobile phone photos with harsh shadows.
Octelis builds e-commerce websites for UK supplement and fitness brands. If you're launching a new store or refreshing an existing one, get in touch to discuss what your project needs.
