An item from my order was missing, i emailed to check what had happened & Beth had literally replied within minutes letting me know it was out of stock at the time but would be delivered the v... See more
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Verified
I’m extremely impressed with the customer service — truly perfect! There was a small error with my delivery, and the team responded quickly and professionally. They immediately sent me a replacement p... See more
I purchased the beta carb powder and the oat chew bars these are really really good and you can tell the difference in your performance on the bike … the beta gels don’t have any benefits whatsoever,... See more
Company replied
Verified
Arrived really quickly, which is important when getting nutrition in place in time for an event. Good price too when using the subscription service.
Company replied
Company details
- #27 of 67 best companies in Fitness and Nutrition Service
- #4 of 5 best companies in Sports Nutrition Store
About Science in Sport (SiS)
Written by the company
Science in Sport are an endurance nutrition brand focusing on the key areas of hydration, energy and recovery.
Providing a range of superb premium sports nutrition such as energy gels, energy bars, hydration tabs, protein shake powders and much more, SiS work with pioneering scientists and elite athletes such Sir Chris Hoy & Helen Jenkins. Therefore, it’s clear to see why SiS have been behind 40 Olympic Gold Medals since 1996.
SiS GO Energy Range – Carbohydrate loaded energy gels, energy bars & energy drinks for all endurance sports
SiS GO Electrolyte Range – Balance of carbohydrate energy & effective hydration
SiS GO Hydro Range – When you need hydration with virtually no calories
SiS REGO Rapid Recovery Range – To help recover, rebuild and support the body’s adaptation to training
SiS REGO Protein Range – A blend of rapidly absorbing proteins to provide a protein boost and support muscle rebuild
Providing a range of superb premium sports nutrition such as energy gels, energy bars, hydration tabs, protein shake powders and much more, SiS work with pioneering scientists and elite athletes such Sir Chris Hoy & Helen Jenkins. Therefore, it’s clear to see why SiS have been behind 40 Olympic Gold Medals since 1996.
SiS GO Energy Range – Carbohydrate loaded energy gels, energy bars & energy drinks for all endurance sports
SiS GO Electrolyte Range – Balance of carbohydrate energy & effective hydration
SiS GO Hydro Range – When you need hydration with virtually no calories
SiS REGO Rapid Recovery Range – To help recover, rebuild and support the body’s adaptation to training
SiS REGO Protein Range – A blend of rapidly absorbing proteins to provide a protein boost and support muscle rebuild
Science In Sport - Leaders in Endurance Sports Nutrition Products
Written by the company
- TRUSTED BY ELITE OLYMPIC ATHLETES & WORLD CHAMPIONS
- Being a leading endurance nutrition manufacturer, we are proud to be part of HFL’s list of Informed-Sport approved brands and products, having been the first to pass through the sport laboratory’s evolved banned substance testing programme. It’s no wonder our ambassador is Sir Chris Hoy.
- SiS CUSTOMER SERVICE
- We value each and every one of our customers, whether you buy from us directly or from any of our trusted partners around the world. Every customer receives personal support and guidance from our expert team of professional customer service advisors and qualified sports nutritionists.
- SiS REWARDS LOYALTY PROGRAMME
- The SiS Rewards programme has been designed to reward our ever-growing loyal customer base with fantastic exclusive offers and a chance to earn money off every single order placed at scienceinsport.com. Joining the SiS Rewards scheme is FREE and discounts can be earned today.
- EXCLUSIVE BUNDLES & PRODUCTS
- Scienceinsport.com gives customers the opportunity to try a range of different products and flavours in various money-saving bundles not available anywhere else. Addressing key areas such as energy products, hydration tabs and protein products, these online-exclusive bundles contain individual sachets and packets that are great for gifts as well as convenient to take out and about.
SCIENCE IN SPORT GUARANTEE
If you’re not fully satisfied, please get in touch
We pride ourselves on providing an exceptional experience for all our customers. From ordering their favourite sports nutrition on our website to feeling the positive benefits whilst competing in races, we strive to ensure every customer gets the full SiS experience. If you are unhappy with your order, please do not hesitate to get in touch with our friendly customer service team who will be happy to help you.
Contact info
United States
- support@scienceinsport.com
- www.scienceinsport.com
4.4
Excellent
64K reviews
Replied to 100% of negative reviews
Typically replies within 24 hours
Verified
Verified
Verified
I’m extremely impressed with the custumor service
I’m extremely impressed with the customer service — truly perfect! There was a small error with my delivery, and the team responded quickly and professionally. They immediately sent me a replacement product free of charge, no questions asked. It’s rare to find such efficient and generous support these days. Highly recommended!
Date of experience: June 14, 2025
Verified
Great range of good quality products
Great range of good quality products. Easy to order and quickly delivered.
Date of experience: June 23, 2025
Verified
Verified
Science in Sport - Reliable And Reccomended !
Ordered, paid, item delivered quickly.
Date of experience: June 21, 2025
Reply from Science in Sport (SiS)
Hi Alan,
Thanks for your review.
We're happy to hear that you're enjoying our service :)
Kind regards
Team SiS
Verified
Reply from Science in Sport (SiS)
Hi there,
Thanks for your review.
We're happy to hear that you're enjoying our service.
Kind regards
Team SiS
Verified
Superb products
Superb products that are definite aid to improving your performance.
Date of experience: June 22, 2025
Reply from Science in Sport (SiS)
Hi John,
Thanks for your review.
We're glad to hear that you're enjoying our products and that they're working well for you.
Kind regards
Team SiS
Verified
Arrived really quickly
Arrived really quickly, which is important when getting nutrition in place in time for an event. Good price too when using the subscription service.
Date of experience: June 22, 2025
Reply from Science in Sport (SiS)
Hi Hannah,
Thanks for your review.
We're glad to hear that you're enjoying our service.
Kind regards
Team SiS
Verified
Reply from Science in Sport (SiS)
Hi John,
Thanks for your review.
We're glad to hear that you're enjoying our service.
Kind regards
Team SiS
Verified
Reply from Science in Sport (SiS)
Hi Alan,
Thanks for your review.
We're glad to hear that you're enjoying our service :)
Kind regards
Team SiS
Verified
Very prompt service
Date of experience: June 19, 2025
Reply from Science in Sport (SiS)
Hi Susan,
Thanks for your review.
We're glad to hear that you're enjoying our service.
Kind regards
Team SiS
Verified
Usual top quality products
Date of experience: June 18, 2025
Reply from Science in Sport (SiS)
Hi Barry,
Thanks for your review.
We're glad to hear that you're enjoying our products :)
Kind regards
Team SiS
Had a few problems with orders and the…
Had a few problems with orders and the usual brilliant customer service from Sis had it sorted in know time! Johnathan was brilliant. Best product on the market
Date of experience: June 26, 2025
Reply from Science in Sport (SiS)
Hi Ryan,
Thanks for your review.
We're glad to hear that you're enjoying our service and that Jonathan was able to provide support :D
Kind regards
Team SiS
Verified
Review reminder emails
Stop spamming me with emails if I don’t get the response you desire
Date of experience: June 18, 2025
Reply from Science in Sport (SiS)
Hi Oliver,
Thanks for leaving feedback.
After looking into our system, we cannot find any emails to or from the email address provided. We also cannot see that you are subscribed to our newsletter.
A member of our team will be in touch shortly to follow up in regards to this.
Kind regards
Team SiS
Verified
One of the two GO Electrolyte arrived…
One of the two GO Electrolyte arrived with caps broken and I had to move the powder in onother container
Date of experience: June 20, 2025
Reply from Science in Sport (SiS)
Hi!
Thank you for leaving your feedback.
We are sorry to hear that your item arrived damaged, a member of our team will be in touch shortly to follow this up with you.
Kind regards
Team SiS
Verified
Very slick ordering process and…
Very slick ordering process and delivery. great products
Date of experience: June 18, 2025
Reply from Science in Sport (SiS)
Hi there,
Thanks for your review.
We're glad to hear that you're enjoying our service :)
Kind regards
Team SiS
Product fault
Had a faulty product that was accepted ans the replacement arrived next day - excellent service from SiS and Beth
Date of experience: June 27, 2025
Reply from Science in Sport (SiS)
Hi Graham,
Thanks for your review.
I am glad that I was able to resolve this issue for you! :)
We're so glad that you're happy with our service!
Kind regards
Beth - Team SiS
Verified
Good as a return
Good as a return
Customer I would not expect anything less
Date of experience: June 19, 2025
Reply from Science in Sport (SiS)
Hi Fraser,
Thanks for your review.
We're glad to hear that you're enjoying our service :)
Kind regards
Team SiS
Verified
Reply from Science in Sport (SiS)
Hi Mark,
Thanks for your review.
We're glad to hear that you're enjoying our products!
Kind regards
Team SiS
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