From June 2027, European rules will restrict cyclosiloxanes D5 and D6 above 0.1% in all cosmetic products, including leave-on formats. That single threshold now sits at the centre of one of the largest sensory reformulation programmes the beauty industry has faced in a decade.

Silicones built the texture of modern beauty. They make creams glide, primers blur, hair serums shine, sunscreens spread evenly and colour cosmetics feel lighter than their pigment load suggests. For years, they served as the quiet performance engine behind what consumers call premium feel. The new question for brands is no longer whether silicones work. They do. The question is whether the next generation of products can hold the same sensory standard with ingredients that better match expectations on sustainability, transparency and, above all, regulatory resilience.

This is why natural silicone alternatives are moving from niche claim to strategic formulation priority.

What does the June 2027 deadline actually change?

The European regulatory signal is unambiguous: D5 and D6 face restriction above 0.1% across all cosmetic products from June 2027, leave-on included. The restriction does not erase every silicone from beauty. It does change the risk calculation for brands.

It pushes product developers to a decision point with two paths:

• Reactive reformulation, ingredient by ingredient, as each substance draws scrutiny.
• Proactive sensory system design, building texture platforms from the outset that carry less exposure to future regulatory review.

For formulation teams, the second path means requalifying emollient systems, rebuilding spreadability and slip benchmarks, and validating natural alternatives against silicone performance baselines in primers, serums, sunscreens and colour cosmetics. For regulatory affairs, it means auditing portfolios now for D5 and D6 content and mapping which SKUs breach the 0.1% limit. Procurement faces the parallel task of securing supply of natural alternatives before demand tightens closer to the deadline.

How large is the commercial pull?

The trend is not only regulatory. The global natural personal care ingredients market was valued at US$5.3bn in 2023 and is projected to reach $7.9bn by 2028, an 8.3% CAGR, according to MarketsandMarkets.

Three figures frame the opportunity for suppliers and buyers:

• US$5.3bn – market value in 2023.
• US$7.9bn – projected value by 2028.
• 8.3% – annual growth rate across the forecast period.

Growth at that pace, coinciding with a hard EU deadline in June 2027, suggests demand for silicone-mimicking natural ingredients will rise faster than category averages. Formulators who qualify alternatives early will face less price pressure and fewer supply constraints than those who wait for the regulatory clock to force their hand.

What should brands watch next?

For treatment menus and product development, the practical sequence runs: audit current formulas for D5 and D6, prioritise leave-on SKUs above the 0.1% threshold, then benchmark natural alternatives against the sensory attributes silicones delivered – glide, blur, shine, even spread, lightweight pigment feel.

The date that matters most remains June 2027. Between now and then, the next data points to watch are supplier launches of natural sensory ingredients at trade shows, stability and performance data on reformulated lines, and any widening of EU scrutiny beyond D5 and D6 to other silicone chemistries.