Dimethylsilanol Hyaluronate is a derivative of hyaluronic acid combined with dimethylsilanol, an organosilicon compound. This ingredient is primarily used in cosmetic skincare products due to its exceptional moisturizing, firming, and antioxidant properties. Dimethylsilanol Hyaluronate helps improve skin hydration, promotes elasticity and firmness, and protects the skin from the harmful effects of free radicals.
Chemical Composition and Structure
Dimethylsilanol Hyaluronate is a combination of hyaluronic acid, a natural molecule known for its water-retaining ability, and dimethylsilanol, a silicon-based compound that enhances the stability and effectiveness of hyaluronic acid. Hyaluronic acid is well-known for its capacity to hold up to 1000 times its weight in water, providing intense hydration. The addition of dimethylsilanol improves the penetration and stability of hyaluronic acid within the skin.
Physical Properties
It typically appears as a clear liquid or gel that is water-soluble. Thanks to its unique combination, it offers a lightweight, silky texture that is quickly absorbed into the skin without leaving a greasy residue.
Appearance: Clear to slightly cloudy liquid or gel.
Odor: Typically odorless.
Texture: Smooth, gel-like texture that provides a silky feel upon application.
Production Process
Dimethylsilanol Hyaluronate is synthesized through a chemical process that bonds hyaluronic acid with dimethylsilanol. This process combines the moisturizing and protective properties of hyaluronic acid with the structural and stabilizing benefits of silicon, creating a versatile and effective ingredient for cosmetic formulations.
Applications
Skincare: Dimethylsilanol Hyaluronate is used in serums, moisturizers, and lotions to enhance skin hydration, promote firmness and elasticity, and reduce visible signs of aging.
Anti-Aging Products: Due to its firming and antioxidant properties, it is often included in anti-aging products, helping to fight free radicals and improve skin tone and firmness.
Eye Contour Products: It is used in eye creams and gels to reduce the appearance of wrinkles, puffiness, and dark circles by hydrating and firming the delicate skin around the eyes.
INCI Functions:
Humectant. Hygroscopic compound used to minimise water loss in the skin and to prevent it from drying out by facilitating faster and greater absorption of water into the stratum corneum of the epidermis. The epidermis is the most superficial of the three layers that make up human skin (epidermis, dermis and hypodermis) and is the layer that maintains hydration in all three layers. In turn, the epidermis is composed of five layers: horny, the most superficial, granular, spinous, shiny, and basal. Humectants have the ability to retain the water they attract from the air in the stratum corneum and have the function of moisturising the skin. They are best used before emollients, which are oil-based.
Moisturizing. This ingredient is responsible for preventing the evaporation of moisture from the skin and improving cellular activity. When exposed to cold or hot air currents, the skin absorbs water from its inner layer to compensate for the evaporated water. If the draught phenomenon persists, the stratum corneum is dry and, if at all, damaged.
Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
CAS: 135507-00-5
Health and Safety Considerations
Safety in Use
Dimethylsilanol Hyaluronate is considered safe for use in cosmetic products. It is well tolerated by most individuals and is not known to cause significant irritation or sensitization. It is suitable for all skin types, including sensitive skin.
Allergic Reactions
Allergic reactions to Dimethylsilanol Hyaluronate are very rare. However, as with any ingredient, it is advisable to perform a patch test before using new products, especially for individuals with sensitive or reactive skin.
Toxicity and Carcinogenicity
There is no evidence that Dimethylsilanol Hyaluronate is toxic or carcinogenic. It is considered safe for topical use and poses no known health risks when used at recommended concentrations in cosmetics.
Environmental and Safety Considerations
As a synthetic ingredient, Dimethylsilanol Hyaluronate is generally considered safe for the environment, though proper disposal of products containing it is important to minimize environmental impact. Silicon, one of its key components, is an abundant natural element.
Regulatory Status
Dimethylsilanol Hyaluronate is approved for use in cosmetics in many regions, including the European Union and the United States. It is regulated in compliance with cosmetic ingredient safety standards.
