Preparation of Creams

Definition

• Creams are semi-solid topical preparations made from an emulsion of oil and water.
• They are less greasy than ointments and are easily absorbed, providing a balance between hydration and occlusion.
• Creams are widely used in skin care and medical treatments.

Preparation Methods

• Creams are typically prepared as either oil-in-water (O/W) or water-in-oil (W/O) emulsions:

1. Oil-in-Water (O/W) Emulsions

   • Higher water content, lower oil content.
   • The oil phase is dispersed in the water phase using an emulsifying agent.
   • Preparation: Heat the oil and water phases separately, then slowly add the oil phase to the water phase while continuously mixing.

2. Water-in-Oil (W/O) Emulsions

   • Higher oil content, lower water content.
   • The water phase is dispersed in the oil phase with the help of an emulsifying agent.
   • Preparation: Heat the oil and water phases separately, then slowly add the water phase to the oil phase while mixing continuously.

Types of Creams

1. Oil-in-Water (O/W) creams
2. Water-in-Oil (W/O) creams

Uses

• Creams are used for various purposes, including:
  1. Moisturization
  2. Protection (especially W/O creams)
  3. Wound care
  4. Pain relief

Click Here to Watch the Best Pharma Videos