hi dear.
yes they are 100% authentic. they are different compared to my very old opi i purchase from salons as well. but i have checked with those selling at leading departmental stores. They are the same. Labels varies even those selling in the leading departmental stores.

do not worry as supplier supplies to salons and retailers as well.
also, we understand that there are counterfeit opis around. so do not worry. they are genuine.
for any enquires, do email me at euphoricnails.blogspot.com