Ingredient
O-PHENYLPHENOL
Name / description
o-Phenylphenol; Biphenyl-2-ol
Function(s) of this ingredient in cosmetic products
PRESERVATIVE
Protects cosmetic products from microbial spoilage
Origin
synthetic
Information on safe use
In accordance with the EC Cosmetics Regulation (Regulation (EC) No. 1223/2009), which applies to the entire EU market, preservatives means substances which are exclusively or mainly intended to inhibit the development of microorganisms in the cosmetic product. Annex V of the Regulation defines the substances which may be used as preservatives in cosmetic products. In this so-called positive list of preservatives, maximum concentrations are defined for the use of these substances in cosmetic products as well as the permissible uses. Preservatives are examined in respect of their toxicological safety prior to their approval in Annex V and undergo extensive tests. Manufacturers must prove the health safety in extensive scientific studies.
Links to scientific assessments
SCCS opinion on o-phenylphenol (2015)
Why are we talking about it?
Ortho-phenylphenol (OPP) is suspected of being an endocrine disruptor. The facts: In vitro studies show that OPP has a very weak effect on oestrogens (1 to 10 million times lower than the female reference hormone). This effect is not confirmed in vivo. No effect on other hormones has been demonstrated. Endocrine disruption is a recent concept, which explains why there are more in vitro data, which are quicker and easier to produce, than in vivo data. It is common for in vivo data to contradict in vitro data. A good example is soya, which contains molecules which mimic oestrogens but do not cause any effect in humans. OPP has been evaluated by several expert committees (European, French, plus US environmental agencies) (1, 2, 3), which have validated its safety at authorised concentrations. 19,000 jars of face cream would have to be applied per day every day to exceed the most restrictive no-effect dose (57 kg woman, average weight). Key points to take away: Like for all preservatives, the use of OPP in cosmetic products is highly regulated. Its use at authorised concentrations is considered safe by European experts. Sources: (1) Opinion SCCS/1555/15, June 2015: https://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_177.pdf (2) ANSES/ex-AFSSA-AFSSET: Profil toxicologique de l’o-phénylphénol (OPP), May 2014: https://www.anses.fr/fr/system/files/CHIM2009sa0331Ra-01-An02.pdf (3) USA EPA: Toxicology Disciplinary Chapter for the Re-Registration Eligibility Decision for 2-Phenylphenol and Salts (Orthophenylphenol or OPP), 2006
Further information
For the clarification of a suspicion of a contact allergy this substance can be routinely tested in the epicutaneous test at the dermatologist.
Belongs to the following substance groups
Regulating cosmetics
Cosmetics Ingredients are subject to regulation. Please note, different regulations may apply to cosmetic ingredients outside the EU.