Foundation reformulation enters new era ahead of D5 and D6 cyclic silicone bans in 2027
Challenges in replicating silicone performance
The European Union will enforce new restrictions on cyclosiloxanes D5 and D6 starting June 6, 2027, impacting leave-on cosmetic products like foundations. These substances, already limited to 0.1% in rinse-off formulations, will face the same concentration cap in products designed to remain on the skin. The regulation targets environmental persistence and potential bioaccumulation risks associated with these silicones.
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The Secret to a Flawless Autumn Complexion is Sunscreen LayeringFormulators are now accelerating efforts to replace D5 and D6 with alternative ingredients that maintain the sensory and performance benefits foundations rely on. Cyclosiloxanes have long been valued for their spreadability, smooth finish, and volatility, which allows them to evaporate without leaving residue. As the deadline approaches, companies are testing silicones-free options such as esters, hydrocarbons, and innovative polymer blends to achieve similar texture and longevity without regulatory risk.
Will consumers notice a difference in their foundations?
Replicating the unique feel and wear time of D5 and D6 proves difficult for many formulators. Industry experts note that substitutes often fall short in delivering the same lightweight, non-greasy finish or may affect pigment dispersion and stability. Some alternatives require higher usage levels, increasing cost and potentially altering product viscosity. Despite these hurdles, major beauty brands have begun piloting reformulated foundations in anticipation of the ban, with several aiming for early compliance by 2026.
Brands reformulating to meet the 2027 deadline emphasize that performance and feel will remain consistent, though transitions may involve subtle shifts in texture or dry-down time. Consumer testing is underway to ensure acceptability, with some companies exploring hybrid approaches that minimize silicone use while staying under the threshold. Regulatory clarity and ingredient innovation are seen as key to a smooth shift, though smaller brands may face greater pressure due to limited R&D resources.
Why are D5 and D6 being restricted in leave-on products? The EU cites concerns over their environmental persistence, potential for long-range transport, and possible endocrine-disrupting properties, warranting precautionary limits even in non-rinse-off formulations.
Frequently Asked Questions
Are all silicones banned under the new rule? No, only specific cyclic siloxanes D5 and D6 are restricted to 0.1% in leave-on products; other silicones like dimethicone remain permitted without this concentration cap.
Can foundations still contain any D5 or D6 after 2027? Yes, but only up to a maximum of 0.1% concentration, aligning leave-on products with the existing limit for rinse-off items such as shampoos and body washes.