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The Best Electrolyte Powders on Amazon, by Sodium and Sugar

Updated By the HealthWorld editorial teamHow we pick

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Top picks at a glance

  1. 1
    LMNT Electrolyte Drink Mix

    Best for heavy sweaters

    LMNT Electrolyte Drink Mix

    Sodium 1,000 mg · Potassium 200 mg

  2. 2
    Liquid I.V. Hydration Multiplier

    Best with added vitamins

    Liquid I.V. Hydration Multiplier

    Format Stick packs · Electrolytes Yes

  3. 3
    Ultima Replenisher Electrolyte Drink Mix

    Best low-sodium everyday mix

    Ultima Replenisher Electrolyte Drink Mix

    Magnesium 100 mg · Potassium 250 mg

See all 5 picks and why ↓

Amazon's electrolyte best sellers range from very salty sugar-free mixes to light everyday ones. When we checked on October 31, 2026, Ultima Replenisher, Redmond Re-Lyte and Nuun Sport were all in the top 6 of Amazon's electrolyte best sellers, so we compared them with LMNT and Liquid I.V., two of the best-known mixes in the US, by sodium, sugar and format.

Our picks

  1. LMNT Electrolyte Drink Mix

    #1Best for heavy sweaters

    LMNT Electrolyte Drink Mix

    1,000 mg of sodium and 200 mg of potassium per stick, plus magnesium, with 0 g of sugar. Very salty, so it suits long, sweaty sessions and low-carb days rather than all-day sipping.

    Sodium 1,000 mgPotassium 200 mgeBay Full facts →
  2. Liquid I.V. Hydration Multiplier

    #2Best with added vitamins

    Liquid I.V. Hydration Multiplier

    An electrolyte blend with sodium and potassium plus vitamins B3, B5, B6, B12 and C, in single-serve sticks and lots of fruity flavors. Handy for travel and hot days.

    Format Stick packsElectrolytes YeseBay Full facts →
  3. Ultima Replenisher Electrolyte Drink Mix

    #3Best low-sodium everyday mix

    Ultima Replenisher Electrolyte Drink Mix

    Six electrolytes, including 250 mg of potassium and 100 mg of magnesium, but only 55 mg of sodium, with 0 g of sugar and 0 calories, sweetened with stevia. Non-GMO Project Verified, and in Amazon's electrolyte top 5 when we checked.

    Magnesium 100 mgPotassium 250 mgeBay Full facts →
  4. Redmond Re-Lyte Hydration

    #4Best salty sugar-free scoop

    Redmond Re-Lyte Hydration

    810 mg of sodium, 400 mg of potassium and 50 mg of magnesium per scoop, with zero sugar and zero calories, made with Redmond Real Salt. Contains coconut.

    Sodium 810 mgPotassium 400 mgeBay Full facts →
  5. Nuun Sport Electrolyte Tablets

    #5Best tablet

    Nuun Sport Electrolyte Tablets

    One fizzy tablet in 16 fl oz of water gives 360 mg of sodium, 100 mg of potassium and 25 mg of magnesium for 10 calories and 1 g of sugar. The tube of 10 fits a bag or bottle cage.

    Sodium 360 mgPotassium 100 mgeBay Full facts →
Amazon's live top 100 in Sports nutrition & creatine

What to look for

Sodium per serving
Our picks range from 55 mg (Ultima) to 1,000 mg (LMNT) of sodium per serving. High-sodium mixes suit heavy sweaters and long sessions; on a desk day, a low-sodium mix or plain water is usually enough, since most adults already get plenty of sodium from food.
Sugar and sweeteners
LMNT, Ultima and Re-Lyte list 0 g of sugar; Nuun has 1 g per tablet. Sugar-free mixes rely on sweeteners such as stevia, so read the full ingredient list if you avoid them.
Sticks, tubs or tablets
Stick packs travel well, tubs with a scoop usually cost less per serving, and tablets are the lightest to carry. Compare cost per serving, and consider Subscribe & Save for a mix you drink most days.
Seller and best-by date
Electrolyte mixes are food products with a best-by date. Buy from Amazon or the brand, and check the date and seals when the box arrives.
Blood pressure and kidneys
If you have high blood pressure, heart or kidney issues, or follow a low-sodium diet, ask your doctor before using high-sodium mixes like LMNT or Re-Lyte regularly.

Frequently asked questions

What is the best-selling electrolyte powder on Amazon?

When we checked Amazon.com on October 31, 2026, Ultima Replenisher, Redmond Re-Lyte and Nuun Sport tablets were all in the top 6 of Amazon's electrolyte best sellers. The list changes often, and the best mix for you depends on how much you sweat.

LMNT vs Ultima vs Re-Lyte: which should I buy?

LMNT (1,000 mg sodium) and Re-Lyte (810 mg sodium, 400 mg potassium) are built for heavy sweaters and long sessions. Ultima (55 mg sodium, 0 calories) is a light everyday mix. All three list 0 g of sugar.

Do men and women need different electrolytes?

Not really. What matters is how much and how salty you sweat, the heat and how long you train, not your sex. If you're pregnant, ask your doctor before using high-sodium mixes.

Are electrolyte powders from Amazon safe to drink every day?

For most healthy adults, a mix from an established brand is fine when you follow the serving size and keep total sodium in mind. A low-sodium mix like Ultima suits daily sipping better than a 1,000 mg stick. Ask your doctor first if you have high blood pressure or kidney issues.

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