Safer Products

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Proposed Priority Product: Nail Products Containing Methyl Methacrylate

DTSC proposes to list nail products containing methyl methacrylate (MMA) as a Priority Product with a Chemical of Concern. DTSC has developed a draft technical document, the Product-Chemical Profile on Nail Products containing Methyl Methacrylate (MMA), to explain the scientific, regulatory, and policy bases for the proposal. A public workshop is scheduled for February 24, 2020, to discuss and receive public input on the draft product-chemical profile. DTSC will also share information on its previous and ongoing investigations on the presence of other Candidate Chemicals in nail products.

Methyl methacrylate (MMA) is a volatile monomer used in some nail products; MMA is released from these products into air and can be inhaled. Dermal and oral exposure to MMA from nail products can also occur. MMA has been detected in retail nail products for home use as well as in indoor air in nail salons. In the early 1970s, the FDA removed the nail products containing 100 percent MMA from the market and in 2015 California’s Board of Barbering and Cosmetology (BBC) prohibited the use of MMA-containing nail products in licensed hair and nail salons and cosmetology schools through regulation. Despite these regulatory actions, MMA continues to be detected in indoor air in nail salons. MMA exposure has been linked to adverse health effects including dermal toxicity and respiratory tract effects.

Public Comment Period

To view related materials regarding this proposal and to submit a comment, please visit the CalSAFER site. Input from the workshop and public comment period will be taken into consideration as the Department finalizes the Product-Chemical Profile in preparation for rulemaking.

Public Workshop

A public workshop was held in Sacramento and via webcast on February 24, 2020, from 9:00 a.m. to 12:00 p.m. PST.

At the workshop, DTSC will discussed our research on other Candidate Chemicals that may be found in nail products, including:

  • Candidate Chemicals we are actively researching;
  • Candidate Chemicals that we have investigated and decided not to pursue further at this time;
  • Candidate Chemicals recently identified in nail products through new market and formulation data;
  • Nail products recommended for evaluation by stakeholders; and
  • Future data-gathering efforts on chemicals in nail products, including lab testing and information call-ins.

Below are documents related to this workshop:

SCP Priority Products