Place a trial order. After receiving your purchase, you should do a few manipulations. You can lightly rub the strand with your thumb and middle fingers, moving from top to bottom. If the hairs aren’t folded in the direction of the cuticles, they will quickly become tangled. Excessive stickiness and unnatural sliding on the hair surface makes it clear that the strand has been treated with a shock dose of silicone. It’s quickly washed out, and the strands become dull;