• Acts as an emulsifier and stabilizer for creams and lotions
• Improves viscosity and texture in skincare formulations
• Enhances spreadability and moisturization
• Suitable for both hot and cold process emulsions
• Safe and versatile for cosmetic applications

GMS Powder (Glycerol Monostearate) – Emulsifier & Opacifier for Creams and Lotions

Glycerol Monostearate (GMS) is a waxy, white flake or powder that works as an excellent non-ionic emulsifier and thickening agent in oil-in-water emulsions. Commonly used in lotions, creams, conditioners, and serums, it helps stabilize formulations and improve their texture. GMS also enhances the moisturizing effect by forming a protective layer on the skin or hair. Ideal for beginner and professional formulators alike, it can be used with other emulsifiers like cetyl alcohol or stearic acid for enhanced results.

INCI Name: Glycerol Monostearate

CAS Number: 31566-31-1

Solubility: Dispersible in hot water, soluble in oils

Add Phase: Oil phase (heat required)

pH Stability: 4.5 – 8.0

Processing Temperature: 70°C – 75°C

Appearance: White powder or flakes

Odor: Mild, fatty odor

Molecular Formula: C21H42O4

Molecular Weight: ~358.57 g/mol

Flash Point: >200°C

Density: ~0.97 g/cm³

Chemical Type: Monoester

Functional Groups: Ester

Primary Cosmetic Uses: Emulsions, creams, lotions, hair conditioners

• Usage Rate: 1% – 10%
• Recommended Pairings: Cetyl alcohol, Stearic acid, Cetearyl alcohol
• Storage: Store in cool, dry place away from moisture

Use GMS in combination with cetyl alcohol for better texture and stability. It works best when melted into the oil phase and emulsified at 70–75°C for a silky, stable result.

✔️ Dry

✔️ Normal

✔️ Mature

✔️ Sensitive (with proper formulation)

❌ Not ideal alone for oily skin (requires balance)

1. Hydrating Body Lotion

5% GMS

6% Stearic Acid

10% Sweet Almond Oil

75% Water

1% Preservative

2% Fragrance

2. Creamy Hair Conditioner

4% GMS

3% BTMS

5% Coconut Oil

85% Distilled Water

1% Preservative

2% Herbal Extract

Serums
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜


Creams & Lotions
⭐⭐⭐⭐⭐ – Excellent
🟩🟩🟩🟩🟩


Toners
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜


Face Masks
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜


Cleansers
⭐⭐⭐☆☆ – Reasonable
🟨🟨🟨⬜⬜


Hair Masks
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜


Deodorants
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜


Eye Creams
⭐⭐⭐☆☆ – Reasonable
🟨🟨🟨⬜⬜


Shampoos
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜


Soaps
⭐⭐⭐☆☆ – Reasonable
🟨🟨🟨⬜⬜


Conditioners
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜


Lip Balms
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜


Body Butters
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜


Ointments
⭐⭐⭐☆☆ – Reasonable
🟨🟨🟨⬜⬜

Q1: Is GMS natural?

A: It is derived from natural vegetable oils but undergoes processing.

Q2: Can I use it alone to emulsify oils and water?

A: It works best when used with a co-emulsifier like cetyl alcohol or stearic acid.

Q3: Does GMS add thickness?

A: Yes, it also improves the texture of emulsions.