Ash Dust, similar to Fuller's Earth, is a light powder, which is pale and dusty looking. It's ideal to subtly distress the face, skin and costuming.
Black Soot powder is a skin-safe specialty powder for all kinds of realistic burn F/X, charring and black grease effects and even chimney sweep effects.
Texas Dirt is a special effects powder that simulates and acts like real dirt without the red overtones.
F/X Blood Powder is simulated blood powder that is highly concentrated and ideal for use in situations that call for large quantities of splash blood (in a casualty scene, on a vehicle, on the ground, on people, etc.).