I have a red roan overo APHA filly that was a very faint color. She went from a washed out color to a vibrant red roan. She even has a dorsal stripe/shading stripe that came out that wasn't noticeable before. This stuff is expensive but has brought out a vibrant color to her. For some reason she also seems to have a much calmer demeanor, do not know if it is related to this product, but have noticed a huge difference. If you wish to see before and after pics email me at bandaidpatrol@yahoo.com