No. In fact, the market is full of synthetic, non-Remy, Remy and human hair. Although you have alternatives, you are recommended to choose Remy human hair. Remy human hair extensions last longer than the synthetic one, and they will live through a lot of events and rainy days. Actually, Remy human hair extensions look like your real hair and are treated the same way. You can dry them, use hair straighteners on them as well as go swimming. More important, Remy human hair is the healthiest. It’s picked one strand at a time and keeps the ends and roots in the right direction.