P-Chloro-M-Cresol

What is P-Chloro-M-Cresol?

P-Chloro-m-Cresol, known as chlorocresol or 4-chloro-3-methylphenol, is a synthetic compound derived from cresol chlorinated during chemical manufacturing. It serves primarily as an antimicrobial agent in personal care formulations, including lotions, shampoos, and creams. This ingredient functions by disrupting the cell membranes of bacteria, fungi, and yeasts, preventing their proliferation and maintaining product integrity against contamination. Employed in both rinse-off and leave-on cosmetics at controlled levels, it provides broad-spectrum protection, supporting the stability and usability of water-containing products. Regulatory bodies like the EU permit its use within specified limits to balance preservation efficacy with safety considerations.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 5 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Biocide
Destroys or inhibits harmful organisms to preserve products.
Preservative
Protects the product from microbial contamination during storage and use, helping maintain safety, stability, and shelf life.

Benefits

Safeguards cosmetics from bacterial and fungal growth.

Supports extended product shelf life and stability.

Enhances overall formulation safety during use.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals using water-based skincare products.
Those with sensitive or reactive skin.
Users seeking reliable product preservation.
People prone to contact allergies.
People with non-comedogenic needs in routines.
Individuals sensitive to phenolic compounds.

Safety Notes

  • Potential for skin irritation or sensitization reported in some cases.
  • Regulated for use at low concentrations in cosmetics.

Frequently Asked Questions about P-Chloro-M-Cresol

What is P-Chloro-m-Cresol used for in cosmetics?

It acts as a preservative and biocide to inhibit microbial growth and protect product stability.

Is P-Chloro-m-Cresol safe for all skin types?

It may irritate sensitive skin; those with allergies should avoid it.

How does it work in products?

By damaging microbial cell membranes, preventing contamination.