Answer

English

Regarding your questions about powders for formulations:

1. Availability of Smaller Quantities: For inquiries about purchasing smaller quantities of ingredients for testing purposes, such as sizes below the standard minimum, please contact the sales or customer service department directly. They can provide the most current information on product availability and options for sampling.

2. Preventing Darkening ("กันคล้ำ"): You are correct; "กันคล้ำ" typically refers to preventing makeup from oxidizing, becoming dull, or changing color on the skin over time. This is often related to how well the powder controls oil and moisture.

   Comparing Synthetic Fluorphlogopite (Methicone Coated) and Sericite Powder (Silane Coated):

   • Synthetic Fluorphlogopite (Methicone Coated) is known for its high brightness and shine. The Methicone coating improves texture, adhesion, and importantly, enhances oil absorption and water resistance. These properties are crucial for preventing makeup from darkening due to sebum and sweat, helping the product maintain its fresh appearance longer.
   • Sericite Powder (Silane Coated) provides good texture and spreadability, contributing to a natural finish. While Sericite does absorb oil, the description for the Silane coated version doesn't highlight this property as strongly as the Synthetic Fluorphlogopite description does for its oil absorption and water resistance.

   Based on the descriptions, Synthetic Fluorphlogopite (Methicone Coated) is likely more effective at preventing darkening/dullness due to its superior oil absorption, water resistance, and inherent brightness.