First of all, we need to know what the protein fiber (silk) is. Basically, It is a kind of fiber which people mixed some fur colloid into it for pretending there is some smell like burning human hair when it is burned. However, its original nature is still fiber which hates high temperature and boiling water.
There are three ways to help us correctly identify if there is some protein fiber mixed into the hair extensions.
First, Iron with high temperature. basically higher than 240°C (464°F) will make the protein fiber to shrink.
Second, hot water or steam of high temperature will make the protein fiber out of shape.
Third, protein fiber is not easy to dye with color.
Welcome to leave your comments below to share your ideas on this issue.
Originally written by Gia Han.