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Cosmetic ingredient dictionary

O-Cymen-5-Ol in cosmetics: what it is and what it does

O-Cymen-5-Ol is a cosmetic ingredient that keeps the product from spoiling. The EU lists it as an allowed preservative, with a maximum amount. Open Beauty Facts finds it in 39 products, most often toothpastes.

By Bravoora teamUpdated Sources checked 3 sourcesHow we check

What does O-Cymen-5-Ol do in a product?

In a cosmetic product, O-Cymen-5-Ol keeps the product from spoiling. The EU’s CosIng database lists this job for it: preservative.

preservative

What other names and numbers does O-Cymen-5-Ol have?

CAS number
3228-02-2, 39660-61-2
EC number
221-761-7
CosIng reference
35637

Is O-Cymen-5-Ol restricted in the EU?

It is allowed, on a list with limits. The EU lists it as an allowed preservative, with a maximum amount (Annex V of Regulation 1223/2009, entry 38).

The annex entry sets the exact limits, the products it may be used in and any warning the label must carry.

Which products contain O-Cymen-5-Ol?

Open Beauty Facts finds O-Cymen-5-Ol in the ingredient lists of 39 of the 22,021 products it has a list for, most often toothpastes, sunscreen and deodorants.

  • Toothpastes3
  • Sunscreen3
  • Deodorants2

Products with it, by country of sale: France 10 · Italy 5 · Singapore 4 · United States 3.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where O-Cymen-5-Ol turns up, not how much of the market it is.

On these listsPreservatives

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors

Sources

The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL
  3. EU Regulation 1223/2009 on cosmetic products (the annexes)

Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

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