These are the hyaluronic acid serums that I’ve tried that have a pH level below 6.0 (in alphabetical order by brand).
Please note that I use pH strips and they aren’t a perfect science so the pH levels noted below are estimates only and let us know if a product is on the acidic side (or not). There is also some variation between batches of products and a manufacturer may have made changes to their formula since I tested.
The majority of the products listed below are also silicone-free and sulfate-free.
If I have written a review, a link to it is below. My reviews also include an ingredients list although the ingredients may be inaccurate (depending on the original source/translation) or have changed after a review was posted.
- Hada Labo Tokyo Replenishing Hydrator (pH of 5.0, my review)
- Replenix Pure Hydration Hyaluronic Acid Serum (pH of 4.75, Jan 2019: review forthcoming.)
- Skin Inc Hyaluronic Acid Serum, Replenish (pH of 5.25)
- Hydraluron Hyaluronic Acid Serum (pH of 5.75, my review)
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