I have stained cabinets that are too dark. They are finished now but they are too dark. Want to know if gel stain on top will lighten them?
Adding gel stain won't lighten your cabinets. It will simply add more color. You have two choices;
1- Best Option; Strip off everything including the stain and restain with a lighter color.
2- Paint your cabinets with a light-medium tan then stain with a gel stain. This is possible but difficult to do.