The EU PFHxA cosmetics restriction reached a critical compliance milestone on 10 October 2026. From that date, cosmetic products placed on the market or used in the EU must meet specific limits for undecafluorohexanoic acid (PFHxA), its salts, and PFHxA-related substances. For cosmetics manufacturers, brand owners, importers, and responsible persons, this is an active placing-on-the-market condition requiring formula-level and raw-material-level checks.
The restriction was introduced by Commission Regulation (EU) 2024/2462 of 19 September 2024, amending Annex XVII to REACH. Businesses should treat 10 October 2026 as the point after which non-compliant cosmetic products can no longer be placed on the market or used in the EU.
What the EU PFHxA cosmetics restriction requires
Under the EU PFHxA cosmetics restriction, cosmetics cannot be placed on the market or used if the concentration reaches or exceeds two thresholds. The first threshold is 25 ppb for the sum of PFHxA and its salts. The second threshold is 1,000 ppb for the sum of PFHxA-related substances. Both limits are measured in homogeneous material.
These trace-level limits mean that even unintended residual PFHxA from raw materials, production aids, or impurities can be relevant. Compliance is not only about intentionally added PFHxA; it requires understanding the full chemical profile of a finished cosmetic formula.
The term “homogeneous material” is important. The concentration is assessed in a single consistent material, not across a mixed finished product with multiple layers or phases. For a cosmetic cream, lotion, or powder, businesses should consider how the measurement applies to each homogeneous component or phase.
Legal basis and scope
The restriction was introduced under REACH through an amendment to Annex XVII. This means the obligation sits alongside other REACH restrictions that may apply to cosmetic products. Although cosmetics are regulated under the EU Cosmetics Regulation for human safety, REACH restrictions can still limit substances for environmental and wider health reasons.
Why the restriction has been introduced
The source points to environmental and human health concerns associated with PFHxA, its salts, and PFHxA-related substances. As part of the broader PFAS family, these substances are considered very persistent and mobile in the environment, especially in aquatic systems.
The restriction was introduced under REACH rather than the EU Cosmetics Regulation because REACH provides the framework for addressing environmental risks. The Cosmetics Regulation primarily focuses on human health safety.
According to the source, the restriction focuses on uses where the risks are not adequately controlled, suitable alternatives are available, and the socio-economic costs are proportionate to the expected benefits.
Implications for cosmetics manufacturers and responsible persons
For manufacturers, brand owners, importers, and responsible persons, the EU PFHxA cosmetics restriction creates immediate compliance duties. PFHxA and related substances can appear at trace level through complex raw material supply chains. A complete product assessment may require data from multiple suppliers, including information on impurities or residual substances not always disclosed on standard documentation.
Affected businesses should consider the following implications:
- Finished cosmetic formulas must be evaluated against the 25 ppb and 1,000 ppb limits in relevant homogeneous materials.
- Raw material specifications and safety data sheets may not provide sufficient PFHxA trace data; supplier questionnaires may be necessary.
- Products already on the market before the deadline may need review if they continue to be placed on the market after 10 October 2026.
- Contract manufacturers and private label brands should clarify responsibility for compliance data.
- Testing strategies should be designed to detect PFHxA and PFHxA-related substances at trace levels.
The responsible person under the Cosmetics Regulation has a central role in ensuring that only compliant cosmetic products are placed on the EU market. However, because this is a REACH Annex XVII restriction, upstream formulators and raw material suppliers also need to align documentation and traceability.
PFHxA-related substances and chemical scope
PFHxA-related substances belong to the broader PFAS family and are defined based on chemical structure. Broadly, the definition captures substances containing certain perfluoropentyl (C5F11-) or perfluorohexyl (C6F13-) groups. However, the restriction also establishes several specific exclusions.
This is a crucial point for regulatory assessments. A substance may be outside the definition if covered by one of the exclusions. A visual check of a chemical name or formula is not enough; each substance should be assessed against the legal definition in the amending regulation.
For cosmetic ingredient manufacturers and formulators, generic conclusions about “PFAS” or “PFHxA content” can be misleading. The relevant question is whether a specific raw material or residual substance meets the legal definition of PFHxA, its salts, or a PFHxA-related substance under the restriction.
How the EU PFHxA cosmetics restriction fits into broader PFAS regulatory activity
The 10 October 2026 deadline is one part of a wider EU effort to manage PFAS. ECHA and its scientific committees have been assessing a broader restriction covering PFAS across numerous product categories and uses, including cosmetics. That broader proposal has not yet produced the final restriction described in the source material, but it shows the direction of travel.
According to the source, the concentration limit of 25 ppb for individual PFAS is the threshold proposed by ECHA and its scientific committees under the broader PFAS restriction proposal. The existing PFHxA restriction has therefore contributed analytical and regulatory experience for assessing how these substances could be regulated as a group.
For cosmetics businesses, this context is important. Even if a particular PFHxA-related substance is excluded from the current restriction, the broader PFAS discussion may still affect future obligations. Companies should monitor ECHA committee assessments and avoid designing compliance strategies only for the narrowest reading of current rules.
Practical compliance checks and actions
To prepare for and maintain compliance with the EU PFHxA cosmetics restriction, responsible persons and manufacturers can start with a structured review of their product portfolio. Practical actions should focus on traceability, data quality, and verification.
- Map cosmetic formulas against the PFHxA definition. Identify ingredients and known impurities that may contain perfluoropentyl or perfluorohexyl groups and confirm whether exclusions apply.
- Collect supplier declarations. Request written confirmation on PFHxA, its salts, and PFHxA-related substance content in each raw material, including trace impurities.
- Use targeted analytical testing. Where supplier data is missing or unreliable, consider laboratory analysis capable of measuring PFHxA and related substances at ppb levels in homogeneous materials.
- Review product phasing. Identify products that cannot meet the limits and decide on reformulation, source changes, or withdrawal before placing them on the market.
- Document the assessment. Keep records showing how each product was evaluated, which supplier data or test results were used, and why the product meets the relevant threshold.
Because the restriction is based on REACH Annex XVII, it is separate from the Cosmetic Product Safety Report. However, safety assessors and regulatory professionals should still ensure that the product file reflects relevant REACH compliance considerations where they affect marketability.
For companies needing additional support, engaging EU and UK cosmetic compliance services can help bridge the gap between raw material documentation and finished product obligations. The key is to use a consistent, documented process across suppliers and product categories.
What cosmetic businesses should monitor next
The source highlights ongoing ECHA work on a broader PFAS restriction covering cosmetics. The EU PFHxA cosmetics restriction should not be treated as the final word on PFAS compliance. Businesses should monitor ECHA committee opinions, draft implementing regulations, and any additional EU or national measures that may follow.
Specific areas to watch include updates to the broader PFAS restriction proposal, clarifications on PFHxA-related substance exclusions, and any new guidance on analytical methods for trace-level PFAS measurement. Companies should also pay attention to how enforcement authorities interpret the “homogeneous material” concept in practice.
Because the source addresses the EU REACH framework, companies selling in the UK or other markets should separately verify their obligations in those jurisdictions.
Conclusion
The 10 October 2026 deadline makes the EU PFHxA cosmetics restriction an immediate compliance priority for cosmetic products placed on the EU market. Companies should move quickly to gather supplier data, verify chemical scope, and confirm that finished formulas meet the trace-level limits in homogeneous material.
Verify every cosmetic formula against the PFHxA limits now to avoid placing non-compliant products on the EU market.