Yes, I use Brisa coloured gels over my clients L&P.
I take the shine down to a 180 grit.
Brush the nails with my plush brush to get rid of the dust.
Wipe over with CND Scrubfresh to rid the nail of any oils from my fingers during filing.
Then apply the coloured gel thinly & evenly & cure between coats (I do 2 coats) - be really sure to cap the edge all round the free edge with each layer.
Then I use my Brisa Top Coat & cap all edges & cure, wipe off sticky layer & voila!