HomeProduct SPECIFICATIONApply one coat to bare nails followed by colour, then 1one coat on top to lock it in. Apply one coat to bare nails followed by colour, then 1one coat on top to lock it in. Filter Showing the single result Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Random Sort by editor review OPI Start to Finish 3in1 Strengthener Treatment 15ml £18.05 Brand: OPI