Preparation and evalution of cleansing creams with formulas

Classification of Cleansing Creams

Cleansing creams are used to cleanse the skin and remove dirt, makeup, and impurities. They are classified into two main types:

1. Water-in-oil (W/O) Cleansing Creams

   • These creams have water dispersed in an oil phase.
   • They are suitable for dry skin as they provide hydration and prevent moisture loss.
   • Have a rich, greasy texture and are highly effective in removing heavy makeup.

2. Oil-in-water (O/W) Cleansing Creams

   • These creams have oil dispersed in a water phase.
   • Suitable for oily and combination skin types.
   • Light in texture and provide a less greasy feel.

Preparation and Evaluation of Cold Cream

Preparation of Cold Cream

Cold cream is a type of W/O emulsion used as a moisturizer. It soothes and hydrates the skin while creating a protective barrier.

Formula:

Ingredients	Quantity (%)
Beeswax	12
Mineral Oil	50
Borax	0.5
Purified Water	37.5
Perfume	q.s.

Procedure:

1. Oil Phase Preparation:

   • Melt beeswax and mineral oil in a beaker using a water bath.
   • Ensure uniform melting of the wax and oil at a temperature of approximately 70–75°C.

2. Water Phase Preparation:

   • Dissolve borax in purified water and heat to the same temperature as the oil phase.

3. Emulsion Formation:

   • Slowly add the water phase to the oil phase with continuous stirring.
   • Stir the mixture until it cools to room temperature, forming a creamy emulsion.

4. Addition of Perfume:

   • Add perfume or fragrance when the emulsion has cooled to avoid evaporation of volatile components.

5. Packaging:

   • Transfer the prepared cream into sterile containers and seal tightly.

Evaluation of Cold Cream

To ensure quality and performance, the following evaluations are performed:

1. Physical Appearance:

   • Check for smoothness, homogeneity, and color.

2. pH Measurement:

   • Measure the pH using a pH meter to ensure skin compatibility (range: 5.0–7.0).

3. Stability Testing:

   • Perform temperature variation tests to check for phase separation, color, or odor changes.

4. Spreadability Test:

   • Measure the ease with which the cream spreads on the skin using a glass slide method.

5. Moisturizing Effect:

   • Evaluate the cream's hydration ability by applying it to the skin and measuring skin moisture levels over time.

6. Viscosity:

   • Measure the viscosity using a viscometer to ensure proper consistency.

7. Skin Irritation Test:

   • Test on a small area of skin to ensure it is non-irritating and safe for use.

By carefully formulating and evaluating the cold cream, you can ensure a high-quality product that meets both functional and consumer expectations.