How do you divide genuine leather from synthetic leather?

1 allowed to burn, burn the most direct;
2. Press the leather by hand, the dermis has natural wrinkles, while the artificial leather has unnatural wrinkles;
3. Compare different leather blocks. A leather product, such as leather coat or leather shoes, is rarely made of the whole leather.
Look at the reverse side of leather, man-made leather has the fabric of chemical fiber commonly or grain, dermis has pore only;
5. See the luster, leather luster is soft, artificial leather luster is bright;
Look at the price, the price of leather and artificial leather prices are very different, if the price of leather products is very low, to be very careful to distinguish.