Skin care product (5)
I believe the answer is:
toner
'skin care product' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for toner that I've seen before include "Astringent liquid (to improve skin)" , "Copier powder" , "Black or coloured powder used in a printer" , "Lotion for cleansing the skin" , "Powdered pigment used in laser printers" .)