Acetic acid

Why Acetic Acid Is a Useful Ingredient in Skincare

Acetic acid is an organic compound best known as the main active component in vinegar, but in skincare it plays multiple roles. In carefully controlled concentrations, acetic acid can help balance the skin’s pH, making it less hospitable to harmful bacteria. Its mild astringent properties can help tighten the skin’s appearance, while its antimicrobial effects support clearer, healthier skin.

It is sometimes used in chemical exfoliation for very gentle removal of dead skin cells, improving skin texture and radiance. However, because it is an acid, it must be formulated at safe levels to avoid irritation.

Where is Acetic Acid derived from?
Natural and common sources include:

• Fermented apples (apple cider vinegar)
• Grapes (wine vinegar)
• Grains such as barley, rice, or corn (malt or rice vinegar)
• Synthetic fermentation from ethanol for cosmetic-grade purity

Bottom line: When used correctly, acetic acid can be a multitasking ingredient — helping to maintain skin balance, control bacteria, and subtly refine texture in beauty products.