Abstract: The invention relates to a reflection aid (1) intended to increase the ability of users to see, without the inconvenience of spectacles, for example when applying a make-up, which comprises an optical lens (3) capable of attachment to a mirror (4) of the kind in question by means of a fastening device (5). Said lens (3) is attached to the mirror attachment device (5) in such a way that the lens (3), when in the position (A) ready for use, can be set to the desired distance (L) from the mirror (4).