C10-30 Cholesterol/Lanosterol Esters is a highly diverse ester complex derived from wool wax, combining branched-chain fatty acids, cholesterol, and related sterols. It is a snow-white, odorless, and amorphous soft solid with a pleasant, non-greasy, emollient feel and melting point of 30-38°C. This ester is extremely low in polar components and is characterized by the virtual absence of hydroxyl or carboxyl groups. Like the lipids in the skin's stratum corneum, it provides skin repair, conditioning, and moisturization.
C10-30 Cholesterol/Lanosterol Esters is mild and soothing yet powerful enough to moisturize even the driest skin. Thanks to its complex composition and outstanding barrier repair properties, this sterol complex protects against environmental damaging factors to help repair dry, chapped skin and lips and keep them soft, healthy, and conditioned.
It is a skin-softening lipid emollient and moisturizer whose functionality and enhanced performance can be attributed to its structural makeup. This unique structure, coupled with the particular combination of regular, iso-, and anteiso fatty acids it contains, is responsible for giving C10-30 Cholesterol/Lanosterol Esters the skin-softening, emollient, and moisturizing properties that make it so desirable as a skincare ingredient.
Non-crystalline in nature, C10-30 Cholesterol/Lanosterol Esters acquirs amorphous character from the extensive branching in its structure. This amorphous state accounts for the exceptional skin-softening properties the ester exhibits. Its remarkably adequate moisture-binding properties are the result of the sterols it contains, while its excellent spreading, adhesion, and feel properties are characteristics acquired from the presence of the branched-chain fatty acid moiety.Moisturization
The functionality of C10-30 Cholesterol/Lanosterol Esters in skin moisturization can be linked to its structural resemblance to sebum, a vital skin lipid consisting of esters of branched-chain saturated fatty acids, fatty alcohols, and sterols. Sebum is one of the skin's natural moisturizers, and certain components of it have shown a unique capacity for water absorption.
Sebum can first emulsify the water that diffuses from the dermis across the epidermis and then hold it in the keratinized epidermal cells. In this respect, C10-30 Cholesterol/Lanosterol Esters is similar to sebum. Given its high capacity for water absorption—up to 50% of its weight—it exhibits behavior corresponding to the active component of this important skin lipid and acquires the ability to absorb large amounts of water from the sterols it contains. The ester also has emulsifying properties similar to sebum and can intensify its effect in its presence.
Uses in Skincare
As an emollient and moisturizer, C10-30 Cholesterol/Lanosterol Esters is a uniquely functional skin-softening lipid whose exceptional moisture-binding properties help maintain healthy and supple skin. Because of its strong affinity for water absorption, it can be extremely valuable in preparations for dry skin.
It forms a non-sticky, water-repellent, and glossy film on the skin. Due to its superior spreading, adhesion, and feel properties, SUPER STEROL ESTER confers highly desirable aesthetics to emulsions, an effect that gives creams and lotions an elegance all their own.Uses in Lipsticks
Because of its purity and virtual lack of taste, C10-30 Cholesterol/Lanosterol Esters is considered the ingredient of choice for lipsticks. It produces elegant sticks, improving their skin feel and giving them a creamy pay-off. It also exhibits excellent spreading ability and good adhesion properties to these anhydrous systems.
Solubility
C10-30 Cholesterol/Lanosterol Esters is soluble in mineral oil, PPG-2 Myristyl Ether Propionate, Oleyl Alcohol, and Isopropyl Myristate.
Safety
C10-30 Cholesterol/Lanosterol Esters has an outstanding toxicological profile, having shown extremely low levels of toxicity, irritation, and allergenicity. It has been extensively tested in the U.K. and Japan.A clinical study showed remarkable restorative power compared to petrolatum for C10-30 cholesterol/lanosterol esters. In the two-week study, the lips treated with a preparation containing this ingredient showed a dramatic improvement in condition.
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