Algae-derived fibres, dyes, coatings and biopolymers are used or under development for textile applications. While still a small market compared to food, feed and cosmetics, the algae-textiles interface is growing — driven by interest in sustainable alternatives to synthetic fibres and petroleum-derived textile chemicals. The EU regulatory framework for textiles covers fibre labelling, restrictions on hazardous chemicals, and sustainability requirements.

Regulation (EU) No 1007/2011 of the European Parliament and of the Council of 27 September 2011 on textile fibre names and related labelling and marking of the generic and commercial composition of textile products, OJ L 272, 18.10.2011, p. 1 EURlex.

Relevance to algae: This Regulation requires that textile products sold to consumers bear a label indicating their fibre composition by name and percentage. Textile fibres are listed in Annex I to the Regulation; only fibres with a name in Annex I may be used in the fibre composition label. Key points for algae:

• “Seaweed” and algae-derived fibres are not currently listed as named fibres in Annex I. This means that a fibre derived from algae (e.g. a viscose or lyocell-type fibre produced from alginate or algal cellulose, or a pure alginate fibre) cannot be labelled with a specific algae fibre name under the current Regulation.
• The alternative for unlisted fibres is the use of the description “Other fibres” in the fibre composition label, with the specific natural fibre source noted in brackets, e.g. “Other fibres (alginate)”.
• To have an algae-derived fibre recognised with its own official name in Annex I, a manufacturer must apply to the Commission for recognition of a new fibre name, following the procedure in Article 8 and Annex II of the Regulation. The Commission has added new fibre names following such applications, and the algae fibre sector may consider this pathway as commercial volumes grow.

Commercial context: Seacell (a lyocell variant with incorporated seaweed particles), alginate fibres (from brown seaweed alginates, used in wound dressings and some technical textiles), and research materials based on algal biopolymers are the principal current algae-related textile materials.

Regulation (EC) No 1907/2006 on REACH EURlex applies to chemical substances used in textile processing, including bleaching agents, dyes, finishing agents and surface treatments. Textile products are articles for REACH purposes, and:

• REACH Annex XVII contains restrictions on certain hazardous substances in textile products (e.g. azo dyes that release carcinogenic amines, certain flame retardants, nonylphenol ethoxylates, heavy metals in textile colourants).
• Algae-derived dyes (e.g. phycocyanin as a natural blue textile dye, fucoxanthin as a brown dye) are generally not listed as restricted substances and offer a potentially cleaner regulatory profile than some synthetic textile dyes.
• Where algae-derived chemicals are used as textile processing agents, REACH registration may be required if produced or imported above 1 tonne per year.

Restriction of Hazardous Substances (RoHS) does not apply to textiles (it applies to electrical and electronic equipment), but the PFAS (per- and polyfluoroalkyl substances) regulatory developments under REACH may affect waterproofing and stain-resistance treatments where algae-derived alternatives are being explored.

The EU Ecolabel (Regulation (EC) No 66/2010 on the EU Ecolabel) has established product group criteria for textiles, addressing the environmental performance of fibres, dyeing, finishing and end-of-life. Algae-derived fibres, where they are used in a textile product seeking the EU Ecolabel, would be assessed against these criteria. Natural-origin fibres generally perform well on criteria related to biodegradability and non-GMO sourcing.

The European Commission's EU Strategy for Sustainable and Circular Textiles (2022), the European Parliament resolution of 1 June 2023 on an EU Strategy for Sustainable and Circular Textiles https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A52023IP0215\EURlex and the forthcoming Ecodesign for Sustainable Products Regulation (ESPR) implementing measures for textiles set the policy direction for increased sustainability requirements on textile products from 2025 onwards. Key expected requirements:

• Minimum recycled content targets for textile products.
• Digital product passports (DPPs) documenting sustainability and composition information.
• Restrictions on destruction of unsold textiles.

Algae-derived fibres and dyes may benefit from the sustainability-driven regulatory pressure, particularly if they can demonstrate superior environmental footprint in the DPP framework.

• No specific EU fibre name for algae currently exists; label textile products containing algae-derived fibres as “Other fibres (specific name)” and consider applying for a new fibre name recognition if commercial volumes justify it.
• REACH registration is required for novel algae-derived chemicals used in textile processing at commercial scale.
• Algae-derived natural dyes offer regulatory and marketing advantages over synthetic alternatives in the clean-label textile market, but colour fastness and scalability are commercial challenges to address.
• Monitor the ESPR implementing measures for textiles — digital product passport requirements will demand documentation of all inputs, including algae-derived components, providing both a compliance challenge and a transparency opportunity.

See also: Green Claims and Greenwashing | EU Quality Schemes and Geographical Indications | Cosmetics and Personal Care Products

Last reviewed: June 2026.