"Tattoo Tip #3 – Mix the tattoo ink.
Tattoo shading uses ink in shades from light to dark. Lighter shades of ink, often referred to as a wash, can be created by mixing ink and sterile water. The more water that you add, the lighter the wash. One of the more useful tattoo tips for shading from tattoo artists is to create washes ahead of time in the exact shades that will be required for a shaded tattoo. This eliminates the need for stopping and mixing ink while the tattoo is being applied."
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