Phosphoric Acid

Balances the pH.

What it is

A mineral acid made from phosphate rock.

Adjusts the product's pH and keeps it at the intended level.

A short summary from the dictionary, not yet an in-depth article. About these entries

Balances the pHOfficial EU function: Buffering

Worth knowing · The pure substance, EU

As a pure substance it can irritate or damage skin or eyes (EU harmonised classification). How much a product contains matters.

A label gives no amounts, so none of this says a product is unsafe.