micro ring hair extensions come in a variety of colors, styles, lengths, and textures and can be used to match any hair type. Natural hair extensions or human hair extensions are relatively more expensive compared to synthetic hair because the natural hair extensions can undergo the same types of treatment your hair can it can be colored, curled, or set. Synthetic hair cannot undergo any of these treatments as they will melt when exposed to very high temperatures. Synthetic micro loop hair extensions may be purchased at department stores and should be used as is; natural hair extensions on the other hand, are only available through salons that provide pre bonded hair extensions services.