I purchased the lemon flavored Science in Sport Go Hydro Electrolyte Tablets for use while marathon training. The flavor is not super strong but it definitely tastes like lemon and is really tasty. They are not bitter or overly salty and I didn’t notice any after taste. The tablets can easily be mixed in most water bottles and only take a short time (a few minutes) to completely dissolve.

Easy hydration

I use one tablet every morning to maintain optimum body function. It tastes just like lemon squash so is super easy to drink. Very good value and service from Holland and Barrett.

Essential when cycling

I used to just take water and sometimes just water mixed with juice to help me cycle longer distances. Using one of these in 500ml of water i have found it seems better. The fact these replenish some of the salts you sweat makes you seem to be not as thirsty and keeps you focused for longer.

Good for cramp

I bought these out of desperation, I have had severe bouts of cramp all my life. In the past I have been prescribed quinine tablets which worked but are now banned. My doctor had no suggestions whatsoever other than stretch my legs - what a joke. I bought these during a severe bout of cramp and as if by a miracle the cramp stopped that day, stopped taking them and it came back. Take one a day now, fantastic and good for energy as well.

Great

Sis Electrolytes are good to use to re-hydrate and take before/during training. I can recommend the Lemon Flavour it tastes nice and i frequently buy this one. Much cheaper from other sites to buy Electrolyte tablet’s so cant complain very cheap. Great Product.

Green Tea Extract

I bought these as I am very sensitive to green tea extract and many hydration tablets have it in nowadays. The ingredients list on the product page here does not list green tea extract but the product I was sent had it listed as an ingredient - I assume they have changed the recipe. Watch out if you are sensitive to caffeine, I used one during an evening swimming session and I did not go to sleep until 5am. Thankfully my local H&B let me return the product because of this. You can buy these tablets with caffeine added so why would you add green tea extract to the 'non-caffeine' tablets?

Marathon training hydration

I take one tablet with 500ml in the 30 minutes prior to a long run and these keep me hydrated throughout. I don’t think I could ever have ran 18 miles without a drink before discovering these! I also have SIS energy gels during the run which help too. I don’t mind the taste of the lemon ones, they’re obviously a bit salty tasting but don’t taste bad. I’d be sceptical if they tasted delicious!

OK if on a budget

I've used SiS electrolyte tabs for a while, until I tried another brand. The taste is minimal which is great if you don't want to upset your stomach but not so good if you want to quench that thirst of something juicy.There are better tasting ones out there. However they seem to keep your electrolytes up when it's warm, so in that sense do the job intended.

SIS Hydro tablets

I use this product regularly when out on long distance treks over 37km. Mixed with water, this is an ideal drink to replenish lost minerals and electrolytes.I would recommend for anyone embarking on any long distance hikes.

Worth Every Penny

Someone suggested my health problems could be due to dehydration, so I bought these items from a discount retailer just to try them out. They are excellent. Really fantastic.Those retailers never restock this kind of thing so I was over the moon to find them at H&B, and far cheaper too (when I used the Subscribe option).Why was I so happy? Because these things work. They changed my energy and concentration levels meaning I have become a happier person to be around, especially when compared to my previous dehydrated self.