April 2026 reflects a regulatory landscape that is becoming more precise rather than simply more restrictive.
While ingredient bans continue to evolve, the more significant shift lies in how regulators are addressing classification, exposure, and transparency in parallel. Across the UK and EU, updates are increasingly driven by CLP-led reclassification, resulting in broader, cross-category impacts. In contrast, North America continues to strengthen data, disclosure, and post-market accountability frameworks.
The result is a more fragmented environment, where formulation and compliance strategies must be actively managed across markets, rather than assumed to align.
🇪🇺 EU: Regulatory Update
Recent developments, including Regulation (EU) 2026/909, introduce simultaneous amendments across multiple annexes of the EU Cosmetics Regulation.
Driven by updated CLP classifications and SCCS opinions, these changes:
- Introduce restrictions affecting multiple cosmetic ingredients
- Span Annex II, III, IV, V and VI
- Impact several functional categories, including:
- UV filters
- Fragrance components
- Preservatives
- Colourants
The update also includes revised conditions for certain fragrance allergens, including Benzyl Salicylate, alongside broader changes linked to sensitisation and exposure assessment.
In parallel, May 2026 marks the final enforcement stage for 4-MBC, with no remaining sell-through permitted in the EU market.
Why does it matter?
EU regulation is increasingly becoming systemic rather than incremental. Updates now tend to:
- Apply across multiple ingredient categories simultaneously
- Be triggered by classification changes rather than isolated ingredient reviews
- Reflect growing focus on cumulative exposure, sensitisation, and long-term safety substantiation
Recent updates also reinforce a broader regulatory trend: restrictions are increasingly being driven not only by confirmed hazard profiles, but by the absence of sufficiently robust data to exclude potential risk.
The regulation also highlights the growing role of SCCS-led risk assessment in determining whether higher-concern substances can remain viable under tightly controlled conditions of use.
Application / Impacted Products
- Leave-on formulations with higher exposure profiles
- Multi-functional products combining preservation, fragrance, and colour roles
- Fragrance-containing products where allergen exposure thresholds are becoming increasingly important
- Globally aligned formulations built on EU compliance assumptions
🇬🇧 UK: Regulatory update
Recent amendments to the UK Cosmetics Regulation introduce updated CMR-related restrictions, alongside targeted changes to specific ingredient groups. These include:
- The prohibition of certain UV filters, including 4-MBC
- A reduction in the formaldehyde labelling threshold to 0.001%
- Ongoing alignment with updated toxicological classifications
Implementation timelines extend through 2026, with sell-through provisions into 2027.
Why does it matter?
The direction of travel is clear: the UK is adopting a more precautionary, classification-led approach, while beginning to diverge in execution from the EU.
This introduces a practical challenge—EU compliance is no longer a reliable proxy for UK compliance, particularly for preserved systems and formulations containing borderline substances.
Application / Impacted Products
- Suncare formulations using legacy UV filters
- Preserved systems, especially those relying on formaldehyde-releasing chemistries
- Products exposed to future CMR classification risk
🇺🇸 US: Regulatory update
Implementation of the Modernization of Cosmetics Regulation Act continues to progress, with emphasis on:
- Facility registration and product listing
- Safety substantiation
- Expanded FDA oversight
Why does it matter?
MoCRA introduces structure rather than restriction. The focus is on:
- Demonstrable safety
- Traceability across the supply chain
- Post-market accountability
This places greater weight on the quality and accessibility of safety and regulatory data, rather than on ingredient prohibition alone.
Application / Impacted Products
- All US-market products, particularly new launches
- Products with complex claims or novel positioning
- Portfolios requiring robust internal compliance frameworks
🇨🇦 Canada: Regulatory update
Canada is strengthening its approach to fragrance allergen disclosure, introducing thresholds of:
- 0.001% for leave-on products
- 0.01% for rinse-off products
These must now be reflected within Cosmetic Notification requirements.
Why does it matter?
This aligns Canada more closely with EU-style transparency expectations, particularly around sensitisation risk.
Fragrance is increasingly treated as a fully regulated component, requiring detailed compositional understanding.
Application / Impacted Products
- Fragrance-containing products across all categories
- Particularly leave-on skincare and personal care
- Formulations reliant on complex fragrance systems
🔍 Key Regulatory Themes — April 2026
- CMR classification remains a primary regulatory driver in the UK and EU
- Cross-category updates are increasing, affecting multiple ingredient groups simultaneously
- Labelling thresholds continue to tighten
- Allergen disclosure frameworks are expanding globally
- The US is advancing structured oversight through MoCRA
- Regulatory divergence is increasing across major markets
Regulatory change is increasingly defined not by individual ingredient decisions, but by how classification, exposure, and communication requirements evolve together across markets.
For brands, this creates a more dynamic compliance environment—where maintaining alignment depends on the ability to anticipate change, adapt formulations where necessary, and ensure supporting safety and regulatory frameworks remain robust and defensible.
ADSL supports clients in navigating this complexity, combining formulation expertise with regulatory insight to help maintain compliance while preserving product integrity and speed to market.
ADSL – Advanced Development & Safety Laboratories
Technical Team | Paignton, UK
