OPI Start-to-Finish Original Formula 0.5 fl oz / 15 ml (NT T70) is a 3-in-1 product that works as a base coat, top coat, and nail strengthener. It’s gentle, formaldehyde-free, and designed to save you time by combining all three steps in one bottle.

No need for separate products. Just apply this single formula to strengthen and protect your natural nails.