Skratch Labs · Electrolytes · Powder

Is Skratch Labs Hydration Sport Drink Mix underdosed?

1 serving = 1 scoop (22 g)Label as of 9 Oct 2026 · Brand's product page

Verdict

800–1,143 mg per litreas the directions mix it · the AIS guide is 500–700 mg per litre

Reaches the guide

One serving has 400 mg of sodium. Mixed with 350–500 mL of water as the label directs, that is 800–1,143 mg per litre; the AIS's general guide is 500–700 mg per litre. That is stronger than the general guide, nearer the 1,150–1,380 mg per litre of an oral rehydration solution, which the AIS describes for replacing large losses. Sweat sodium differs a lot between people, so the guide is a starting point.

It ranks 6th of 11 electrolyte supplements here by dose.

What the label says

Sodium per serving
400 mg in 1 scoop (22 g)
Water, as directed
350–500 mL
Sodium per litre
800–1,143 mg per litre
The AIS guide
500–700 mg per litre Evidence: Moderate
Start with adding one scoop of mix to 12-16 fl oz of water and shake. Use when sweating, drink to thirst.
The label's directions, as printed.

Also on the label

IngredientPer servingVerdict
Sodium400 mgNot graded
Calcium50 mgNot graded
Iron200 mcgNot graded
Potassium50 mgNot graded
Vitamin C18 mgNot graded
Magnesium50 mgNot graded

More about sodium per litre, as mixed: forms, timing and the studies behind the dose.

Same category, compared

All 11 electrolyte supplements we checked, ranked by dose (commission never changes the order). Sodium per litre as each label mixes it.

ProductPer litreForm
Cure Hydrating Electrolyte Mix507–1,014 mg per litrePowders
DripDrop Electrolyte Powder1,395 mg per litrePowders
DripDrop Zero Sugar Electrolyte Powder1,395 mg per litrePowders
Liquid I.V. Hydration Multiplier1,057 mg per litrePowders
Redmond Re-Lyte Hydration Electrolyte Powder856–1,712 mg per litrePowders
Skratch Labs Hydration Sport Drink Mix (this product)800–1,143 mg per litrePowders
Nuun Sport632 mg per litreTablets
Ghost Hydration362–423 mg per litrePowders
Nectar Essential Daily Hydration Packets211–423 mg per litrePowders
Kaged Hydra-Charge222–355 mg per litrePowders
Just Ingredients Electrolytes278–324 mg per litrePowders

Where the reference doses come from

  1. Sodium per litre, as mixed, 500–700 mg: AIS, 2025.

For a supplement taken as one dose we judge one serving, and show the most the label allows in a day. Read the full methodology or the corrections log.