Ingredient glossary

Chlorphenesin

What Chlorphenesin does for your skin, who it suits, and what to watch for.

INCI: Chlorphenesin

Quietly necessary

In short: Chlorphenesin delivers preservation, suits most skin types, and the evidence behind it is strong.

What it does
Preservation
Best for
Most skin types
Evidence
Strong
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The molecule

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The Glow take

Quiet, essential, and nothing to fear.

Chlorphenesin keeps a product safe to use from the first pump to the last, at tiny amounts. Not something you pay a premium for.

— Maya

What it does

  • preservation

strong evidenceThe CIR panel concluded chlorphenesin is safe as used at up to 0.3 percent in leave-on products and EU Annex V sets the same maximum; tested levels showed minimal irritation.

On a label: usually effective at 0.1-0.3%.

Who it's for, and who should skip it

Tends to suit

  • all

Approach with care

  • rare allergy
  • Clogs poresLow
  • Irritation riskLow

How it fits each skin type

  • DrySuits
  • CombinationSuits
  • OilySuits
  • SensitiveSuits

Take extra care if any of these apply to you: rare allergy.

Where it fits in your routine

WhenMorning or evening
Where in the orderAfter cleansing, before your moisturizer

Plays well with

Chlorphenesin, answered

Is Chlorphenesin safe during pregnancy?

Yes. Chlorphenesin is considered safe to use during pregnancy and breastfeeding. As with anything, if you are unsure it is worth a quick word with your doctor or midwife.

Who should avoid Chlorphenesin?

Approach Chlorphenesin with care if any of these apply to you: rare allergy.

What concentration of Chlorphenesin actually works?

Chlorphenesin tends to do its job in the 0.1 to 0.3% range. Much lower and it is likely underdosed.

This, for every label you own

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Sources & how we reviewed this

  1. PMID 24861369abstract only, the full text is paywalled
  2. EU Regulation 1223/2009-AnnexV-chlorphenesinsummary page only, the document itself was not read

Last reviewed August 2026. Educational information about a cosmetic ingredient, not medical advice.