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Science in Sport (SiS) is a UK-based sports nutrition brand that has been developing scientifically formulated products for endurance athletes since 1992. The webshop offers a range of energy, hydration, recovery and supplement products aimed at runners, cyclists and triathletes.
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About UKLG_SiS & PHD
Founded
1992
Main category
Sports nutrition
Main assortment
Energy gels, hydration tablets, recovery powders, supplements
Country
United Kingdom
Informed Sport certified
100% of products
Elite teams
350+
Research publications
170+
Target audience
Endurance athletes: runners, cyclists, triathletes
Science in Sport positions itself in the premium sports nutrition segment, targeting serious endurance athletes who prioritise performance and product transparency. The brand backs its formulations with over 170 published research papers and maintains 100% Informed Sport approval across its product range, which matters particularly to competitive and professional athletes. With more than 350 elite sports teams using its products across multiple disciplines, the brand operates at the intersection of sports science and practical fuelling. Its typical customer ranges from committed amateur athletes to elite professionals who want evidence-based nutrition without compromising on quality assurance.
Active promotions
Ready to use with your order at UKLG_SiS & PHD.
Save up to 29% on cycling race nutrition packs that bundle energy, hydration and recovery products for a complete fuelling strategy.
Example promotion
This is an example of a promotion that could suit this business. It is not a guaranteed active offer or a working discount code. Check the website for current deals.
To the shop
UKLG_SiS & PHD in the news
Recent updates and background about UKLG_SiS & PHD, summarised in our own words.
SiS Introduces BETA Fuel Range for Multi-Hour Endurance Athletes
Science in Sport has developed its BETA Fuel line around a 1:0.8 maltodextrin to fructose ratio, reported to deliver ultra-high levels of available carbohydrate and a 17% increase in energy efficiency during prolonged endurance efforts. The range is designed specifically for athletes competing or training across multiple hours.
Elite Marathon Study Highlights 3% Improvement in Running Economy
A published study linked to Science in Sport's research programme found that specific fuelling strategies can improve running economy by up to 3% in elite male marathon runners. The brand highlights this research as part of its broader portfolio of over 170 sports nutrition publications.
SiS Launches Loyalty Membership Programme for Regular Customers
Science in Sport has introduced SiS+, a free membership programme that allows customers to earn loyalty points and access member-only benefits including lab products, training guides and partner offers. The programme is designed to reward repeat customers and deepen engagement with the brand's broader nutrition ecosystem.
Summaries by Image Review based on publicly available sources and our own editing. External links may contain affiliate links.
What others ask about UKLG_SiS & PHD
Answers to the most common questions, based on search behaviour and our own research.
Is Science in Sport a reliable webshop?
Science in Sport has been active since 1992 and all its products carry 100% Informed Sport certification, which means every product is independently tested for banned substances. The brand is trusted by over 350 elite sports teams and well-known athletes, which suggests a consistent standard of quality and transparency.
Does Science in Sport offer free delivery?
The source data does not specify a minimum order threshold for free delivery. It is advisable to check the current delivery conditions on the SiS website before placing an order.
Can I return products to Science in Sport?
The webshop has a dedicated Deliveries and Returns section, but specific return conditions and timeframes are not detailed in the available information. Customers are advised to consult the returns policy on the SiS website directly.
What kind of products does Science in Sport sell?
Science in Sport sells sports nutrition products across five main categories: energy (gels, bars, powders, drinks), hydration (tablets, sticks, electrolyte powders), recovery (powders, collagen shots, shakers), supplements (multivitamins, omega 3, creatine, nitrate shots) and its premium BETA range for advanced endurance fuelling.
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