Common Roles of Cosmetic Excipients

Common Roles of Cosmetic Excipients

1. Emulsifiers

  • Mix water and oil for creams or lotions

  • Examples (CAGS): Cetyl alcohol, glyceryl stearate

2. Thickeners/Viscosity Modifiers

  • Improve texture and consistency

  • Examples (XGC): Xanthan gum, carbomers

3. Preservatives

  • Prevent microbial growth and extend shelf life

  • Examples (PP): Parabens, phenoxyethanol

4. Humectants

  • Retain moisture in skin and product

  • Examples (GPG): Glycerin, propylene glycol

5. Solvents

  • Dissolve active ingredients or other excipients

  • Examples (WA): Water, alcohol

6. Colorants

  • Add aesthetic color

  • Examples (IOTD): Iron oxides, titanium dioxide

7. Fragrances

  • Provide a pleasant smell

8. Surfactants

  • Aid in cleansing by removing dirt and oil

  • Example (SLS): Sodium laureth sulfate

9. Stabilizers

  • Prevent separation or degradation of formulations

  • Example (DS-EDTA): Disodium EDTA