The natural state of Virgin Malaysian hair tends to natural curl in but curl will be more defined if you wrap the hair at night. Malaysian hair in barrel curls will not loosen or drop with time but maintain their form for the entire day. Virgin Indian hair is rarely ever bone straight. It has a slight wave to it. Indian hair holds barrel curls very well but they do loosen slightly but will never totally fall out unless you are in a humid or damp environment. For longer lasting curls with both types of hair you would need to roller set the hair.