Hyaluronic acid + BHA
What the source says
In its hyaluronic acid guide, Healthline includes beta hydroxy acids, or BHAs, among the ingredients that work alongside hyaluronic acid, again without asking readers to change the rest of their routine. For a serum, it describes pressing a few drops onto damp skin after cleansing and following with a moisturizer. This is a single source, and we have not tried the combination ourselves.
Where it can still go wrong
Healthline calls adding hyaluronic acid a low-risk step but warns that using it the wrong way can leave skin drier than before. Its listed causes of side effects are other ingredients, frequency, and a concentration set too high. Nothing in the guide speaks to how a particular BHA product behaves.
A cautious way to start
Go slowly, follow each product's directions, and test new items on a small area before using them on your whole face. Get professional advice about any adverse reaction. Cosmetic guidance, not medical advice.
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Healthline: how to use hyaluronic acid
Healthline is the only source for this page. It names BHAs as a match and gives the serum steps and cautions, and it does not test any BHA formula.