Description - Carboxy Methyl Cellulose (CMC) or Cellulose Gum, is a versatile, water-soluble polymer used in cosmetics as a stabilizer, emulsifier, and thickening agent. It enhances texture, viscosity, and performance while improving hydration and moisture retention in skincare and hair care products. With excellent water-binding properties, CMC creates smooth, creamy formulations, ensuring stability and consistency for a luxurious feel.
Benefits - 
Enhances viscosity for a rich, luxurious texture
Improves stability and prevents ingredient separation
Boosts moisture retention for deep hydration
Forms a smooth, even film for better application
Extends the shelf life of formulations
Prevents separation in lotions and creams
Controls the thickness and texture of liquids, creams, and gels
Stabilizes formulations for increased longevity
Used in eye drops, personal care products, and cosmeceuticals
Thickens shampoos, conditioners, and hair masks for a creamy feel
Enhances serums by reducing runniness and adding humectant properties. 
Application - Used as a thickener, stabilizer, and moisture-binding agent in personal care formulations.
Solubility - Easily dissolves in hot or cold water, forming a clear, uniform solution, but is insoluble in oil and ethanol.
pH Value - 6.5 – 8.5 (varies with concentration)
Melting Point - Decomposes upon heating, does not have a defined melting point.
Usage Rate -  The maximum recommended concentration of use is 2% of the formulation, depending on desired viscosity and formulation requirements. 
How to Use - 
Heat the water phase to 60°C.
Gradually add pure CMC sodium while stirring continuously.
Incorporate the mixture into the heated oil phase.
Adjust the pH as needed to finalize the formulation.