Adobe Photoshop is an advanced graphics-editing and photographic-editing software program. It allows users to blend digital images, remove unsightly images in photographs, execute exposure and lighting adjustments, change colours and many other things. Photoshop even allows users to remove grey hair from a photograph subject in a way that looks natural. Using the program's "Burn Tool," which incrementally darkens selected portions of a photo, you can eliminate grey hair from any photograph.
Open the "Layers" palette at the right of the application window and drag the "background" layer to the "Create a new layer" icon at the bottom of the palette. This will duplicate the layer so you will retain an original copy of your image.
Select the "Burn Tool," nested beneath the "Dodge Tool" in the tools panel at the left of the application window.
Adjust the brush size as needed in the tool options panel at the top of the application window. Set the range to "Midtones" or "Highlights" depending on the darkness of the grey hair. Set the exposure at 30 per cent or lower so that your adjustments aren't too dramatic. You can brush over the hair again if the exposure is too low, but it is best to use the "Burn Tool" in increments.
Click and drag over the areas of grey hair you want to get rid of. Repeat this until the grey hair is gone. Save your image under a new name using the "File" > "Save As" commands.