Sodium formate is the sodium salt of formic acid, a small organic carboxylate used in cosmetics. It adjusts and stabilizes pH, supports preservation systems, and helps formula stability in water-based products.
A small salt that helps stabilize a formula's pH and preservation.
Category
Skin Conditioning
Type
Buffer
Ingredient Ratings
Overall Rating
Fair
Comedogenic Risk
None
Skin Benefits
It helps keep acidity in a skin-comfortable range, reducing irritation risk from pH drift, and supports preservative efficacy to maintain product freshness.
Uses In Skincare & Cosmetics
It's used in water-based formats such as toners, serums, gels, and lotions to maintain stable pH throughout shelf life.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
It's generally low risk at typical cosmetic levels, though mild, transient irritation can occur on sensitive or damaged skin. No widely recognized cosmetic-use restrictions apply.
Is Sodium Formate a Good Ingredient?
It rates Fair: it's valuable for pH control and preservative support, but offers little direct skincare benefit on its own, and at higher levels or on compromised skin it may sting.