Phytosteryl Macadamiate

Origin

Phytosteryl Macadamiate is a sterol ester (intercellular lipid analog) produced through the dehydration-condensation of the carboxyl group of fatty acids derived from natural macadamia seed oil and the hydroxyl group of plant-derived phytosterols.

Skincare Benefits

Phytosterols are essential components of the intercellular lipids that form the skin’s barrier function, playing a vital role in maintaining its integrity and hydration.

Despite their excellent moisturizing properties, phytosterols naturally have a high melting point, making them difficult to incorporate into cosmetic formulations.

By esterifying phytosterols with fatty acids from macadamia seed oil, this ingredient becomes easier to formulate and exhibits a lamellar liquid-crystalline structure — a feature not typically found in conventional esters.

Its melting point is carefully adjusted to approximate human body temperature, giving it a low viscosity and delivering a smooth yet rich texture that feels both hydrating and refreshing on the skin.

Phytosteryl Macadamiate has a remarkable water-holding capacity, capable of absorbing approximately three times its own weight in water, providing an outstanding emollient effect that imparts a soft and supple feel to the skin.

Furthermore, because it contains a high proportion of palmitoleic acid — a key fatty acid also present in skin sebum wax esters — it demonstrates exceptional skin affinity and compatibility.

Both macadamia seed oil and phytosterols are known to have minimal irritation and allergenic potential, and Phytosteryl Macadamiate has been safely used in cosmetic formulations for over 20 years.

Commitment to Ethical Standards

ROSA FAYRE uses naturally derived raw materials cultivated under sustainable agricultural conditions.

This ingredient has negligible environmental impact, aligning with our commitment to ethical, responsible, and environmentally conscious beauty innovation.