The Best Electrolytes for your Flexx Hydration System

The Best Electrolytes for your Flexx Hydration System

An Introduction to Electrolytes

Electrolytes are essential minerals that play a vital role in maintaining our overall health and well-being. They are responsible for proper hydration, nerve and cognitive function, muscle contractions, and more. While electrolytes can be obtained from a balanced diet, there are many times when we need an extra boost of these supplements, especially during intense physical activity or illness. Data consistently shows that consuming electrolytes during physical activity is the most effective way to replenish nutrients lost in sweat. In this article, we'll explore the best electrolyte powders and concentrates available for use with your Flexx hydration system.


LMNT is a popular brand that offers clean and effective electrolyte drink mixes. Their products contain no sugar, artificial ingredients, or fillers, making them easy to clean. LMNT provides a balanced blend of sodium, potassium, and magnesium to support optimal hydration and performance. LMNT makes our list for a number of reasons; each stick clearly indicates the amount of each electrolyte it includes, making it easy to track intake for hard-core users. The taste is definitely on saltier side, which we love, but if you’re looking for something that tastes more like a sugary sports drink, this probably isn’t the right mix for you. Using an endurance hydration system like the Flexx 2.5 Liter to adjust the saltiness/intensity of your supplements, and ensuring you have access to pure water whenever you need a palate cleanser, can be a great way to utilize saltier electrolyte mixes.

Nuun Sport

Nuun Sport is a highly regarded brand known for its clean and natural ingredients. Their electrolyte tablets are free from artificial sweeteners, colors, and preservatives, making them an excellent choice for health-conscious individuals. While they’re not sugar free, they’re probably the best tasting electrolyte supplement on our list, and their effervescent tablets make them the only carbonated option. With a wide range of flavors, Nuun Sport offers a delicious and refreshing way to replenish electrolytes. They also come in tablets, instead of powders, making them easy to carry with you on a ride or run. Because they dissolve completely without much stirring or mixing, they're ideal for throwing in a bottle or reservoir during an aid-station pit-stop, or while on the move.

Skratch Labs

Skratch Labs offers a high-quality electrolyte mix that is widely trusted among athletes and fitness enthusiasts. Their powdered drink mix is made with real fruit and contains a balanced blend of electrolytes, including sodium, potassium, and magnesium. Skratch Labs prioritizes natural ingredients and avoids artificial sweeteners, flavors, and colors. Skratch's electrolytes do have sugar, but it can be as minimal as 4 grams per serving. With their focus on performance and taste, Skratch Labs is an excellent choice for replenishing electrolytes. They can also be a bit more economical than some of the other options on the market.

SaltStick DrinkMix

SaltStick DrinkMix is a reliable option for replenishing electrolytes during intense physical activity. Their DrinkMix contains a balanced blend of electrolytes, with a heavy dose of sodium, alongside potassium, and magnesium. SaltStick  is a popular choice among athletes and is known for its effectiveness and convenience. SaltStick is another sugar-free option. For that reason, it has a saltier flavor profile, similar to LMNT (hence the name). We'll be including samples of their electrolytes mixes in any order placed before the end of the year. 


When it comes to electrolyte powders and concentrates, we always choose brands that prioritize natural and healthy ingredients. Nuun Sport, SaltStick, LMNT, and Skratch Labs are some of the best options available. These brands offer clean and effective formulations without compromising on taste or electrolyte content. By incorporating these electrolyte powders and concentrates into your routine, you can ensure optimal hydration and support your overall well-being. Remember to consult with a healthcare professional before adding any new supplements to your regimen.

We know it can be hard to carry electrolytes with you on the trails. Extra bottles, a mix that’s too sweet or too salty, and the added cleaning that comes with using these products can be a drag. The Flexx series offers a great way to conveniently bring electrolytes (or other supplements) with you during activity. It ensures that you can access pure water, or replenish your electrolytes without distraction, adjusting them in real time during activities like hiking, and cycling, with the chest-mounted dial. Gear that makes it easy to optimize your hydration can be just as important as a balanced fluid intake.

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