Fluorescent powder application is less destructive to personal property and is often the choice when working in sensitive settings, such as homes or businesses. Red Fluorescent Powder produces brilliant fluorescence when exposed to a forensic light source. The resulting latent fingerprint should be photographed with the light source prior to lifting. Powder should be applied with a Red Feather Brush. Black backing cards or gellifters may be used to provide a sharp contrast with the resulting ridge detail. Available in a discounted bulk 50 pack. NOTE: To prevent clumping, our powders include a desiccant canister inside each jar with a capacity for absorbing moisture.