Nail polish formulations tend to be very similar and there are actually very few manufacturers of nail polishes in the world (I know of two in the
Apply to dry nails, and watch the black top coat shrink before your eyes! Manufacturer does recommend not overlapping product when applying.
Effectiveness – does exactly what it says – gives a nail effect, which is quite eye-catching and unique, as it will look different depending on the nail polish underneath
Pampering factor – I don’t find applying nail polish pampering, unless its following a hand or foot massage and manicure/pedicure
Definitely give it a try
I've been embarassed by these photos, so I did my toenails the other day, and this gives a better indication of the nail effect.