Mica Powder Particle Sizes (A–D) and Airbrush Selection

Asked by: nesta2312 On: November 25, 2018 Product Type: Cosmetics Answered

Question

1/ I would like to ask: MICA powder types A B C D are what micron sizes, and which type is the finest?

2/ Please also recommend how to use each type.

3/ If using it for airbrush spraying, which type A B C D should be chosen?

Answer

Mica Powder Sizes and Usage

Mica powders are available in various particle sizes, often categorized by letters like A, B, C, and D. The size of the particles affects the finish and application.

  • Size A: Approximately 30 microns. This is the finest particle size among the A, B, C, D categories. It is suitable for applications where a subtle color or concealing effect is desired, such as in foundation powder or BB/CC creams, providing a natural look with low shine.
  • Size B: Approximately 60-80 microns. These particles are larger than Size A and are used to add noticeable shimmer and shine to products.
  • Size C: Approximately 150-160 microns. These particles are larger and provide a sparkle effect.
  • Size D: Approximately 250-350 microns. These are the largest particles and create a super sparkle or glitter effect.

Therefore, Size A is the finest among the A, B, C, D categories.

Recommended Use for Each Size:

  • Size A: Ideal for subtle color, concealing, and a natural finish in products like foundation, BB/CC creams, and mineral makeup.
  • Size B: Best for adding shimmer and a noticeable glow in various makeup products.
  • Size C: Suitable for creating a sparkle effect, often used in eye shadows or products where a distinct shimmer is desired.
  • Size D: Used for intense sparkle and glitter effects.

For Airbrushing:

For airbrush applications, finer particle sizes are generally recommended to prevent clogging. Based on the particle sizes, Size A (approx. 30 microns) would be the most suitable choice for airbrushing due to its fineness compared to the larger B, C, and D sizes.

Answer Update
Updated Review: May 2026

This section was added after reviewing the original answer against current product availability and formulation knowledge at the stated point in time.

As of 2026-05-17, based on current product specifications:

  • Size A: Confirmed to be approximately 30 microns.
  • Size B: Is approximately 70 microns, not 60-80 as previously stated.
  • Size C: Particles are approximately 150 microns, with products ranging from 120 to 200 microns.
  • Size D: Ranges from 180 to 200 microns, not 250-350 as previously stated.

The recommendation for airbrushing remains unchanged: Size A is still the most suitable choice due to its fineness.