Identify the exact claim and formula
The checked Neutrogena US Water Gel page states a hydration-duration claim, while retailer pages can show different descriptions or versions. We do not merge them into one independent conclusion or reproduce a clinical percentage without the relevant study context.
Ask what was actually measured
A measured skin-hydration endpoint, a consumer questionnaire and the feel of residue are different kinds of evidence. Without the full protocol we cannot infer sample size, comparator, climate or what happens for an individual user.
Keep our role visible
We have not run a hydration instrument test, wear trial or dermatologist assessment. This reference helps you find the source and compare purchase details; it does not rank therapeutic outcomes from marketing language.
Before you decide
- Match exact formula
- Check endpoint and conditions
- Keep manufacturer claim attributed
Sources & scope
Checked November 4, 2026. FDA, manufacturer and retailer sources support the specific statements. Dated displayed prices are not final checkout quotes, clinical rankings or recall clearance. This shopping reference does not replace the product label or individual medical advice.
Neutrogena US: Hydro Boost Water Gel with Signature Fragrance ↗
Keep reading
Read ingredients at the product-line level ↗