This test should only be done by a professional in a controlled environment.
See how different human hair burns compared to synthetic hair. You will first see Goddess 100% human hair extension burn. Notice it turns to ash. Following, you will see Grizzly 100% synthetic hair burn. Notice it melts into sticky drips, then hardens.
NoRhE Goddess hair extensions proper brushing
I've gone 10 days without washing my Goddess hair extensions. Here's how I've maintained them.Daily JOICO daily serum and and proper brushing.