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Moumoujus

VINEGAR.

Questionable CAS 8028-52-2 / NOT REPORTED

Vinegar, primarily acetic acid, functions as a pH adjuster and antimicrobial agent, helping to control bacteria. It also offers mild exfoliation and astringent properties, contributing to skin texture and pore appearance.

Summary

pH adjuster Antimicrobial/antibacterial Exfoliant Astringent Antioxidant

Science

Mechanism of Action

Acetic acid balances skin pH to inhibit bacterial growth and provides antimicrobial effects. It also acts as a mild chemical exfoliant and astringent, improving texture and minimizing pores.

Research

Clinical Evidence

Medium confidence
Effective range 1–5%
Optimal

N/A

Key findings

  1. 01 Diluted vinegar caused irritation and no barrier improvement in eczema patients (MedicalNewsToday, 2019).
  2. 02 0.5% demonstrated significant antimicrobial activity for wound cleansing (International Journal of Dermatology, 2021).
  3. 03 1% daily soaks led to complete wound healing in 19 patients with hypergranulation tissue (International Journal of Dermatology, 2021).
  4. 04 Black vinegar showed reduced comedones and inflammation in preliminary trials (Fermented Vinegars study).

Transparency

Dusting Analysis

Not commonly dusted

Vinegar, as acetic acid, serves multiple active roles as a pH adjuster, antimicrobial, and exfoliant, typically requiring concentrations above dusting levels for functional benefits.

The Formula

Formulation

Solubility
Water
Optimal pH 2 – 3
0 7 14

Stability

Acetic acid has a pH of approximately 2-3, contributing to skin pH balance. It is stable within this acidic range.

Conflicts

  • Alkaline ingredients
  • Ingredients with dramatically different pH levels
  • Strong soaps
  • Other strong exfoliants or sensitizing ingredients

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
5%
Sensitization risk High

Considered safe when diluted to 1-5% in water. High concentrations can cause severe irritation or chemical burns, especially on sensitive or damaged skin; patch testing is essential.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Questionable

While effective as an antimicrobial and mild exfoliant, vinegar carries a high risk of irritation and is not suitable for sensitive or compromised skin, requiring careful formulation.

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