Science in Sport Gel Review

Disclaimer: I received SiS isotonic gels to review as part of being a BibRave Pro. Learn more about becoming a BibRave Pro (ambassador), and check out to review, find, and write race reviews!”

I was lucky enough to get some samples of Science in Sport’s isotonic gels to try. After using them for a few months here is what I thought. I took them out for long runs, regular runs, and for a race.


I enjoyed the taste of these gels. Taste is really important to me because I’m really picky. When I’m running, my stomach is pretty sensitive. I can’t have just anything and I can’t have just any flavor. My favorite flavor is definitely the salted strawberry. It had a really good taste and wasn’t hard for me to get down. I’ve had other brands where I could barely get the gel down and sometimes I just didn’t finish them. Tip: Refrigerate your gels before your run so they are more refreshing on the go.


This is a big one for me. If a gel has a weird or thick consistency I just can’t get it down. All of these gels were smooth. Nothing weird. They all were easy to squeeze out and get down. Definitely recommend.


I’m glad these gels come with a lot in the tube, but they are a little heavy to carry due to their large size. I made sure to wear my vest when I was planning to take them with me. You definitely get a lot of gel for what you pay, but just make sure you have enough room to carry them.


I received mine for free, but right now on their website a box of 30 gels will run you $33. That is a pretty nice price considering how much you get in the gel and how good it tastes. These are definitely something I would buy myself based my experience with them.


I would definitely recommend Science in Sport’s gels. They taste good, you get a lot for what you pay, and they never upset my stomach. They even saved me on one run where I was severely bonking. I recommend you give them a try the next time you are looking for an awesome gel to keep you running! I’m looking forward to them being the main gel at the Rock N Roll Vegas half this fall.

Use code TRYSIS25 on your order for 25% off!

Also, head over to my instagram page to enter for a chance to win two free 6 packs of gels!

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