Natural hair is free from chemicals and which are dyed or treated with chemicals like paint, bleach or straightener etc.
Dyed hair is bleached and colored in different colors. With dyed hair you do better not dye them yourself or apply permanent curls because it would damage the hair with too much chemicals.
Black hair is a little thicker en darker in color. Black hair has more structure dan wavy of crispy or mainly curly hair.
European hair has a extra fine structure and is normally not too dark in color and the most of european hair is straight or slightly wavy. You hardly see european hair with natural deep curls.
Natural straight hair is by nature straight and will get messy when it gets wet.
Natural curly or wavy hair is natural and without any use of chemicals. Curly kinky hair Curly kinky hair is natural with a lot of little curls. It is being used mainly for black hair or a mix. This hair is also available in large quantities (loose hair) or weaved by hand.
Natural very straight hair is gathered specially and is double drawn so the hair becomes straight without waves.