Head to Head
Peter Thomas Roth Water Drench vs Drunk Elephant B-Hydra
Peter Thomas Roth Water Drench and Drunk Elephant B-Hydra compared on hyaluronic concentration, lead actives, finish and bottle size: a 75 percent HA complex against a B5 and ceramide mixer.
Peter Thomas Roth Water Drench Hyaluronic Liquid Gel Cloud Serum
The concentration headline: a 75 percent hyaluronic acid complex in a clear liquid gel that dries to a silky, matte finish.
Drunk Elephant B-Hydra Intensive Hydration Serum
The mixer: a pro vitamin B5 and pineapple ceramide gel serum in a generous 50 ml pump, designed to blend into other steps.
Where They Differ
Lead active: hyaluronic complex vs B5 and ceramide
Water Drench prints its 75 percent hyaluronic acid complex on the bottle and builds the formula around it. B-Hydra prints pineapple ceramide and pro vitamin B5 on its bottle, and its hydration story runs through those ingredients, with hyaluronic support in the background. A label first shopper will notice the difference immediately, and this comparison treats it as the deciding factor.
Finish: matte silk vs calm gel
Water Drench is described by its brand as drying to a silky soft, matte finish, a deliberate choice that oily skin and makeup wearers value. B-Hydra is a straightforward gel with a more conventional, lightly dewy settle, designed to disappear into whatever it is mixed with rather than to set a finish of its own.
Bottle size and how each is meant to be used
Water Drench is a standard 30 ml pump used as a standalone serum step. B-Hydra is 50 ml, and its brand direction explicitly invites mixing one pump into other serums, treatments or moisturisers, or applying it to hands and other dry areas. The size difference reflects the usage difference, and heavy mixers will feel the value of the larger bottle quickly.
The Specification, Side by Side
| Measure | Peter Thomas Roth Water Drench Hyaluronic Liquid Gel Cloud Serum | Drunk Elephant B-Hydra Intensive Hydration Serum |
|---|---|---|
| Size | 30 ml / 1 fl oz | 50 ml / 1.69 fl oz |
| Format | Pump liquid gel serum | Pump gel serum |
| Key Hydrators | 75 percent hyaluronic acid complex, sodium PCA, silk proteins | Pro vitamin B5, pineapple ceramide, glycerin, marula oil |
| Fragrance | Fragrance free, as printed on the listing | Free of fragrance and essential oils, as printed on the listing |
| Finish | Silky soft, matte finish, as described on the listing | Not published |
| Use | Not published | One pump to face, neck or hands; may be mixed with other serums or moisturisers, as directed on the listing |
Choose Peter Thomas Roth Water Drench Hyaluronic Liquid Gel Cloud Serum if
- Hyaluronic acid concentration is your stated reason for buying
- Your skin is oily or combination, or you layer under makeup daily
- You prefer a serum that sets its own matte finish
Choose Drunk Elephant B-Hydra Intensive Hydration Serum if
- You mix products together and want a gel designed for exactly that
- Your skin prefers vitamin B5 and ceramide comfort over a pure humectant
- You use product liberally and want the larger 50 ml bottle
Questions, Answered
Is B-Hydra a hyaluronic acid serum?
Not in the lead active sense. B-Hydra is an intensive hydration serum led by pro vitamin B5 and pineapple ceramide, which is why this site includes it in the hyaluronic edit as a mixer and layering option, and says so on its entry, rather than ranking it as a hyaluronic acid formula.
Which of the two layers better under sunscreen?
Water Drench, for most routines. Its matte, silk veil finish was designed to sit under subsequent layers, and owner commentary supports that. B-Hydra also layers well, but its strength is mixing into a step, not sitting beneath several.
Keep Researching
Every page in the Hyaluronic Acid Serums edit.
- 01Hyaluronic Acid Serums: the hubHub
- 02Best Hyaluronic Acid Serums 2027Best of
- 03Hyaluronic Acid Serums for Dry SkinGuide
- 04How to Layer a Hyaluronic Acid SerumGuide
- 05Hyaluronic Acid Serums for Oily SkinGuide
- 06Vichy Mineral 89 Serum ReviewReview
- 07La Roche-Posay Hyalu B5 Suractivated Serum ReviewReview
- 08Dermalogica Circular Hydration Serum ReviewReview
- 09Vichy Mineral 89 vs La Roche-Posay Hyalu B5Comparison
- 10Hyaluronic Acid Serums Buying GuideBuying guide
- 11Hyaluronic Acid Serum Care and KeepingCare
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