# COSRX Low pH vs Hydrium Hyaluronic Cleanser

**Question answered:** Should I choose COSRX Low pH Good Morning Gel Cleanser or Hydrium Triple Hyaluronic Moisturizing Cleanser?

**Short answer:** Choose Low pH Good Morning Gel Cleanser if your skin is oily or congested and you want a mild gel with betaine salicylate and no added fragrance. Choose Hydrium Triple Hyaluronic Moisturizing Cleanser if your skin is dry or dehydrated and you like a rich, creamy foam with panthenol and three forms of hyaluronic acid; it lists fragrance.

By Nora Ellison. Published 2026-10-29. Data is taken from manufacturer labels; the products have not been tested.

## What this means for you

### Start with what you notice

If your face feels oily again an hour after washing, lean toward the gel. If it feels tight or dry, lean toward the moisturizing foam.

### The ingredient names, translated

The Low pH gel uses mild surfactants plus betaine salicylate, a salicylic acid relative, and tea tree oil. The Hydrium cleanser is a fatty-acid soap-style foam (stearic, myristic and lauric acids with potassium hydroxide) with glycerin, panthenol and three hyaluronic acid forms. Hyaluronic acid in a rinse-off product has little contact time, so the foam's comfort comes mostly from its base.

### How to decide

- Oily or congested skin? Low pH Good Morning Gel Cleanser.
- Dry or dehydrated skin and you like a rich lather? Hydrium Triple Hyaluronic Moisturizing Cleanser.
- Avoiding added fragrance? The Low pH gel; the Hydrium cleanser lists fragrance.

### What to expect

Both are everyday washes, not treatments. Rich foams can still feel drying on very sensitive skin, so watch how your face feels afterward. We haven't tested either product.

General guidance, not a test of these products: [AAD: face washing 101](https://www.aad.org/public/everyday-care/skin-care-basics/care/face-washing-101); [FDA: fragrances in cosmetics](https://www.fda.gov/cosmetics/cosmetic-ingredients/fragrances-cosmetics). Each product's label source is linked on its product page.

## Light gel vs creamy foam

[COSRX Low pH Good Morning Gel Cleanser](product:cosrx-low-ph-good-morning-gel-cleanser) is a 150 mL gel with a stated pH of about 5.3. It lists [betaine salicylate](/ingredients/betaine-salicylate/), [tea tree leaf oil](/ingredients/tea-tree-oil/) and plant extracts, with cocamidopropyl betaine and sodium lauroyl methyl isethionate as cleansers.

[COSRX Hydrium Triple Hyaluronic Moisturizing Cleanser](product:cosrx-hydrium-triple-hyaluronic-moisturizing-cleanser) is a 150 mL foaming wash. Its list leads with water, glycerin and fatty acids neutralized with potassium hydroxide, then adds [panthenol](/ingredients/panthenol/), hyaluronic acid, hydrolyzed hyaluronic acid and sodium hyaluronate. Fragrance appears on the list.

> **Skin Realist check:** "triple hyaluronic" in a rinse-off is mostly about how the wash feels. Your serum and moisturizer do the real hydrating.

## Label differences worth knowing

Fatty-acid foams like the Hydrium cleanser tend to sit at a higher pH than COSRX's low-pH gel, though COSRX doesn't state the Hydrium's pH. See also our [COSRX Low pH vs Snail Mucin comparison](/comparisons/cosrx-low-ph-cleanser-vs-snail-mucin-gel-cleanser/) and [hydrating cleanser guide](/articles/best-hydrating-facial-cleanser/).

## Manufacturer sources

- [COSRX Low pH Good Morning Gel Cleanser](https://www.cosrx.com/products/low-ph-good-morning-gel-cleanser)
- [COSRX Hydrium Triple Hyaluronic Moisturizing Cleanser](https://www.cosrx.com/products/triple-hyaluronic-moisturizing-cleanser)

Sources and label-check dates are recorded on the product pages.

| Product | Price | Key ingredients | Skin types | Fragrance | Flagged ingredients | Size | Source | Buy |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [COSRX Low pH Good Morning Gel Cleanser](https://dermalguide.com/products/cosrx-low-ph-good-morning-gel-cleanser/) | $11.20 at [Stylevana](https://www.awin1.com/pclick.php?p=43018979297&a=3132625&m=90791) (affiliate), checked 2026-10-29 07:35 UTC | Brand doesn't name one | Brand doesn't say | Scent ingredients flagged | Melaleuca Alternifolia (Tea Tree) Leaf Oil | 150 ml | [Manufacturer label](https://www.cosrx.com/products/low-ph-good-morning-gel-cleanser), checked 2026-10-10 | [Amazon (affiliate)](https://amzn.to/4idUmIN) |
| [COSRX Hydrium Triple Hyaluronic Moisturizing Cleanser](https://dermalguide.com/products/cosrx-hydrium-triple-hyaluronic-moisturizing-cleanser/) | $14.40 at [Stylevana](https://www.awin1.com/pclick.php?p=43018979005&a=3132625&m=90791) (affiliate), checked 2026-10-29 07:35 UTC | Brand doesn't name one | Brand doesn't say | Scent ingredients flagged | Fragrance(Parfum), Fragrance (Parfum) | 150 ml | [Manufacturer label](https://www.cosrx.com/products/triple-hyaluronic-moisturizing-cleanser), checked 2026-10-10 | [Amazon (affiliate)](https://amzn.to/4rZzOas) |

## Which to choose

Consider COSRX Low pH Good Morning Gel Cleanser when: Your skin is oily or congested and you want a mild gel; You want no added fragrance and are fine with tea tree oil.

Consider COSRX Hydrium Triple Hyaluronic Moisturizing Cleanser when: Your skin is dry or dehydrated and you like a rich, creamy foam; You want panthenol and hyaluronic acid in your wash.


## Questions

### Which one foams more?

COSRX describes the Hydrium cleanser as building a rich lather. The Low pH cleanser is a gel that lathers lightly.

### Does the Hydrium cleanser contain an acid?

It lists citric acid, which COSRX doesn't present as an exfoliant. The Low pH cleanser lists betaine salicylate, a BHA relative.

### Which lists fragrance?

The Hydrium cleanser lists fragrance. The Low pH cleanser lists tea tree leaf oil but no added fragrance.