Hydrochloric Acid
A mineral acid. It works as a pH adjuster at low levels and is neutralized in the finished formula. Safe at cosmetic levels.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Hydrochloric Acid is a water solution of hydrogen chloride. INCI: Hydrochloric Acid. In cosmetics it is a technical pH adjuster: it is added in very small amounts to lower the acidity of a formula to the target value. It stays on the label even when fully neutralized during manufacturing. It is a functional component, not a skincare active. In the finished product it is not present as an acid at a hazardous concentration; its job is to bring pH into a skin-safe range. Pregnancy safety. As a pH adjuster in the final product it is systemically negligible, with no evidence of harm. It can be used during pregnancy and lactation. Tolerance. In a finished product with adjusted pH the irritation potential is low.
Frequently asked questions
Is Hydrochloric Acid safe during pregnancy?
Hydrochloric Acid is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Hydrochloric Acid for?
Hydrochloric Acid suits: normal, dry, combination, oily, sensitive.
What is Hydrochloric Acid and what does it do in cosmetics?
A mineral acid.
What's the INCI name for Hydrochloric Acid?
The INCI name is Hydrochloric Acid.
See Hydrochloric Acid in a product composition right on the store page
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Similar role in the formula
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