Third-party-tested electrolytes: what NSF lists, product by product
Last reviewed 2026-09-24. Every label figure and certification record below was read from its source on that date, and each links it. No price is shown.
Of these 6 electrolyte mixes, NSF Certified for Sport lists 3 in the exact size sold on Amazon: Momentous, Thorne, Transparent Labs. For the other 3, the certifier's list shows a different stick size, a different product from the same brand, or nothing at all. A certificate names products and sizes; a brand or flavor on the list does not carry over to the rest.
What NSF Certified for Sport tells you
In NSF's own words, the programme verifies that certified products “do not contain unsafe levels of contaminants, prohibited substances or masking agents, and that what is on the label matches what is in the product”. It is a statement about the finished product in the listed sizes. It says nothing about how well a product works, and the listing publishes no test results.
Listed in the size sold
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- Momentous Daily Hydration, Grapefruit: NSF lists 1 packet and 30 packets. 100 mg sodium, 1 g sugar.Amazon →
- Thorne Daily Electrolytes, Watermelon: NSF lists 1 stick pack (4.37 g) and 30 stick packs (131.1 g). 480 mg sodium, 0 g sugar.Amazon →
- Transparent Labs Hydrate, Tropical Punch (tub): NSF lists 320 g (40 scoops of 8 g). 500 mg sodium, 0 g sugar.Amazon →
Not listed as sold, and why each one matters
- DripDrop Electrolyte Powder, Lemon Lime (10 g sticks): not this product: NSF lists DripDrop Lemon Lime as a 21 g stick (14 g sugar); this pack's sticks are 10 g.Amazon →
- Liquid I.V. Hydration Multiplier, Lemon Lime: not this product: NSF lists one Liquid I.V. product, Hydration Multiplier Sugar Free Raspberry Lemonade (13 g stick, one lot), not this Lemon Lime Hydration Multiplier.Amazon →
- LMNT Zero Sugar Electrolytes, Orange Salt: no LMNT product in NSF Certified for Sport's search (keyword “lmnt”: 0 listings).Amazon →
“Not listed” is a statement about NSF's list on 2026-09-24, found through its electrolyte search and a keyword search by brand. It is not a finding that a product is contaminated or untested: other programmes exist, and a brand may test in ways it does not publish.
Sodium and sugar for all six, and a cost-per-serving calculator: six electrolyte drink mixes compared.
This page restates manufacturers' published labels and certification records with attribution. It makes no health, benefit or treatment claim, gives no hydration or dosing advice, and says nothing about whether any product is safe or right for you. A certification record describes tested lots, not a permanent grade.
Links to Amazon on this page are affiliate links: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Which products appear, and their order, was settled by the labels and the certifier's records before any link was attached. Price plays no part.
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