Glycerol Monostearate (GMS)

GLYCEROL MONOSTEARATE (GMS)

Origin & Source
Glycerol Monostearate (GMS) is derived from two naturally occurring components: glycerin and stearic acid. The glycerin is sourced from plant oils through hydrolysis, while stearic acid is a fatty acid commonly obtained from vegetable oils such as palm or shea. Through a controlled esterification process, these components are bonded together to form GMS. While the raw materials originate from nature, the final ingredient is naturally derived through green chemistry, designed specifically for cosmetic formulation consistency and performance.

Chemical Structure & Emulsion Science
GMS is a monoester composed of one glycerin molecule bonded to one fatty acid chain. This structure gives it amphiphilic properties—meaning it interacts with both water and oil. Unlike stronger surfactants, GMS provides gentle emulsification by stabilizing oil droplets in water-based systems without aggressively cleansing or disrupting the skin. This makes it ideal for leave-on skincare where stability and skin comfort must coexist.

Skin Function & Benefits
On the skin, GMS acts as a conditioning agent rather than an active treatment ingredient. It helps soften skin texture, support moisture retention, and enhance comfort by reinforcing the lipid barrier. Because its fatty acid profile closely aligns with the skin’s natural lipids, it contributes to a smooth, nourished feel without clogging pores or causing irritation. It is exceptionally well tolerated by sensitive and dry skin types.

Formulation Role & Sensory Profile
In formulation, GMS is primarily used as an emulsifier, co-emulsifier, and texture stabilizer. It thickens creams, improves viscosity, and prevents separation over time. Sensory-wise, GMS is responsible for creating smooth, elegant textures—transforming liquids into creamy, structured emulsions with a refined, cushioned slip. It also improves spreadability and gives products their characteristic “luxury cream” feel.

Typical Uses in Skincare
Glycerol Monostearate is commonly found in facial creams, body lotions, moisturizers, sunscreens, cleansing balms, conditioners, and emulsions that require a stable oil-water blend. It is particularly valuable in medium-to-rich creams where both structure and elegance are key.

Why Unicorn Tears Uses It
Unicorn Tears uses Glycerol Monostearate for its ability to create beautifully stable, plush emulsions that feel indulgent yet breathable on the skin. It enhances texture, supports moisture balance, and ensures long-term formulation integrity—all while remaining gentle, plant-derived, and skin-respectful. GMS embodies the brand’s philosophy of pairing intelligent formulation science with luxurious sensory design.