I've been DE shaving for about a week now and have used 1 Merkur (came with razor) and a Van Der Hagen that I put in the razor yesterday. While in town today I made a few stops for blades to try. I got a 10 pack of Walgreens store brand made in Israel. Then I went to Sallys Beauty Supply and got a 5 pack of Personna made in USA and a 10 pack of Derby Extra made in Turkey. I even bought a 5 pack of blades from Dollar General that are made in Vietnam. It will be interesting to see the difference in the blades plus I have enough to last me a while, providing I don't throw any away after trying one.