Silicones in Cosmetics: Why Morna Ibiza Says No

Recently, after much resistance from the more conventional side of the industry, the European Chemicals Agency (ECHA) has added octamethyltrisiloxane to its list of Substances of Very High Concern (ECHA, 2025). This siloxane, commonly found in beauty products, has raised concerns due to its persistence in the environment and potential bioaccumulation (Personal Care Insights, 2025). This move reflects growing scrutiny over synthetic ingredients that not only coat the hair but also fail to degrade, harming ecosystems and possibly human health.

At Morna Ibiza, our philosophy is clear: we trust science, we honor nature, and we never compromise on either. This is why our products are silicone-free, formulated with ingredients that truly nourish rather than mask.

🚫 Other Cosmetic Ingredients Under ECHA Scrutiny

Besides octamethyltrisiloxane, the ECHA has flagged several other cosmetic ingredients for their environmental and health concerns:

✔ Perfluorononyl dimethicone → Found in eyeliners and lipsticks.
✔ Perfluorooctylethyl triethoxysilane → Used in various formulations.
✔ Perfluorononylethyl carboxydecyl PEG-10 dimethicone → Present in some makeup products.
✔ Cyclopentasiloxane (D5) & Cyclotetrasiloxane (D4) → Common in conditioners and hair masks.

These compounds have been restricted due to their non-biodegradable nature, potential hormone-disrupting effects, and long-term impact on aquatic life (ECHA, 2025).

Silicones are synthetic polymers widely used in shampoos, conditioners, and skincare to create an instant smoothness and shine. They coat the hair, making it feel soft and silky—but the effect is purely superficial. Instead of improving hair health, they can:

✔ Prevent real hydration by sealing off the hair shaft.
✔ Create buildup, making hair feel heavy and requiring harsher cleansers to remove.
✔ Accumulate in the environment, persisting in water and affecting marine ecosystems.

Instead of silicones, we choose ingredients that work with your hair, not against it:

🌿 Plant oils for deep, real hydration.
🌿 Shea butter for natural smoothness—without artificial coatings.
🌿 Red clay & activated charcoal for cleansing without blocking hair’s ability to breathe.

Your hair deserves more than a temporary fix—it deserves genuine nourishment. With Morna Ibiza, experience haircare rooted in science and powered by nature, free from silicones and harmful residues.

🌿 Discover our silicone-free collection

Ana Rute Novo
Founder I Pharmacist | Specialist in Cosmetic Science