Brussels — The European Commission has opened formal proceedings against Shein under the Digital Services Act (DSA), putting one of the world’s largest fast-fashion marketplaces under the EU’s strongest digital enforcement regime and testing how far Brussels is prepared to push compliance on cross-border retail platforms.
According to reporting on the case, the Commission’s file centres on three issues: the handling of illegal products offered for sale, elements of service design that regulators believe may encourage compulsive use, and the transparency and operation of Shein’s recommendation systems.
The move follows earlier scrutiny of Shein’s marketplace listings, including concerns raised by French authorities about the availability of illegal items. The Commission’s investigation is expected to examine whether Shein has adequate systems to prevent the sale of prohibited goods and whether those systems work at scale across the platform’s EU operations.
“Addictive” or “compulsive-use” design has become a recurring theme in DSA enforcement. Coverage of the Shein case points to features associated with gamified shopping, such as points, rewards or engagement loops, as part of what regulators intend to assess. Under the DSA, very large platforms must identify and mitigate systemic risks linked to the design and functioning of their services, including risks that may affect users’ wellbeing, especially minors.
The Commission has already applied similar scrutiny to other major services. Earlier this month it announced a preliminary finding that TikTok’s design features breach the DSA, citing mechanisms such as infinite scroll, autoplay, push notifications and highly personalised recommendation systems. The TikTok case is separate, but it signals the direction of travel in Brussels: platform architecture is now treated as a compliance issue, not merely a product choice.
Shein was designated a “very large online platform” (VLOP) in April 2024 after it reported an average of more than 45 million monthly users in the EU. That status triggers the DSA’s highest tier of obligations, including requirements to assess systemic risks, introduce proportionate mitigation measures, submit to independent audits, and provide greater transparency around recommender systems and advertising.
The DSA’s enforcement model gives the Commission direct supervisory powers over VLOPs, alongside national digital services coordinators. Formal proceedings allow Brussels to demand information, carry out interviews and inspections, and adopt interim measures where necessary. If breaches are established, penalties can reach up to 6 per cent of global annual turnover, alongside potential orders to change systems or processes.
The Shein case also highlights a practical enforcement challenge: marketplaces combine platform features with retail supply chains that extend beyond the EU. Unlike social networks, where the core risk often concerns content moderation and recommender systems, a shopping marketplace presents a different set of questions about product compliance, traceability, and the speed at which sellers and listings can appear and disappear.
In earlier steps, the Commission had already signalled interest in Shein’s systems for dealing with illegal products and the operation of its recommender tools. It issued requests for information under the DSA in 2025, indicating that formal proceedings could follow depending on the quality of the responses.
For Brussels, the Shein proceedings sit at the intersection of consumer protection, online safety and the EU’s broader attempt to bring large, fast-moving digital marketplaces under a single compliance framework. The DSA’s general application date was 17 February 2024, but the Commission has increasingly focused on the largest services, where systemic risks are deemed highest and where enforcement outcomes can set practical precedents for the rest of the market.
For Shein, the investigation is likely to examine whether its existing controls match the DSA’s expectations for a platform of its size and reach in the EU, and whether it can evidence effective outcomes rather than written policies. The Commission’s final findings will matter beyond one company: if the EU pursues aggressive remedies or large penalties, other cross-border marketplaces will face pressure to reassess product governance, recommender transparency and engagement design as compliance-sensitive areas.
For regulators, the case provides a test of whether the DSA can be used to tackle both illegal goods and platform mechanics in the same enforcement action, and whether Brussels can translate the Act’s broad systemic-risk language into operational requirements for a retail platform built around high-volume, rapid-turnover listings.
