Rinse until you see the black particles wash away. No dye, no staining.
Onyx features a suspension of black silicon carbide particles for visibility on the tooth surface. When agitated, they can impart a gentle abrasive and cleansing effect.

• No dye – no chance of staining porous surfaces
• Black particles can be agitated to scrub and clean surface
• For use on dentin or enamel

Instructions for use
1) Apply Onyx Etch.	2) Leave on for 15 seconds.	3) Rinse and inspect.