The phrase "remaining residue" refers to what is left behind after something has been removed or taken away. It is the small amount or trace that remains after most of something has been used or used up. Full definition
Massage remaining residue into face to absorb. (sokoglam.com)
The last remaining residue of Art Nouveau is exemplified by a stunning Louis Comfort Tiffany glass window. (ronnielandfield.com)
Helps refine surface texture and gently removes surface debris and remaining residue while hydrating and comforting skin. (sunainadasblog.wordpress.com)