HIGH5 ZERO Electrolyte Hydration Tablets, Mixed Flavours, 60 Tablets (£10.77 / £10.17 max S&S)

HIGH5 ZERO Electrolyte Hydration Tablets in mixed flavours are £11.97 at Amazon for 60 tablets, which works out at about 20p per tablet.
Drop one into a bottle of water for a fizzy, flavoured drink that replaces the electrolytes you lose through sweat. Theyre sugar-free and very low in calories, so theyre useful for runs, gym sessions, long bike rides, hot days or travelling, and theyre popular for staying hydrated through the day too.
The formula uses set levels of sodium and potassium to support hydration and recovery during longer sessions, and its enhanced with vitamin C. The mixed pack lets you try a few different flavours instead of committing to one.
Its currently 2 in Health & Personal Care on Amazon and rated 4.6 out of 5 from over 1,100 ratings.
Sold by Amazon. Free delivery for Prime members or on qualifying orders.