To incorporate Pure-TECA™ Centella Asiatica Extract (TECA 95%, CICA) into your cream effectively and avoid a "sandy" or lumpy texture, you have two main options:

1. Dissolving (Recommended for Smooth Texture)

Since TECA is a high-purity powder that does not dissolve in water or oil, adding it directly as a powder can sometimes result in a grainy feel if not processed correctly. To ensure a perfectly smooth cream:

• Method: Dissolve the TECA powder in a solvent such as Butylene Glycol or Propylene Glycol.
• Ratio: Use a ratio of approximately 1:10 (e.g., 1g of TECA to 10g of solvent).
• Heat: You must heat the mixture to 70-80°C while stirring until the powder is completely clear and dissolved.
• Incorporation: Once dissolved, add this liquid mixture into the final step of your cream formulation (when the cream has cooled down to about 40-45°C).

2. Dispersing (Adding as Powder)

If you prefer to add it in powder form at the last step:

• Method: Add the powder to the finished cream.
• Mixing: You must use a high-shear mixer or blender to distribute the particles thoroughly.
• Risk: If you only stir it by hand, it is very likely to clump or feel like fine sand on the skin. Even with blending, the "dissolving" method above is generally preferred for professional-grade results.

Summary of Usage:

• Usage Rate: 0.1 - 2% (1% is recommended for high efficacy).
• Storage: Keep the powder in a cool place (0-10°C) to maintain its potency.

By dissolving it in a glycol first, you eliminate the risk of lumps and ensure the active ingredients are evenly distributed throughout your cream.