I love all OPI nail products! Absolutely the holy grail when it comes to nails. The OPI start to finish base coat, top coat & strengthener is an all in one product that rocks! The drying time is fast & efficient like most OPI polish. It is an amazing base coat protecting nails from stains and is formaldehyde-free helping to prevent fraying and breaking. All nail polish colors stick to it very well and it leaves a beautiful finish as a top coat. All around must have!