No, butterfly locs will not damage your hair. In fact, they can actually help to protect your hair from damage. The reason why they are called butterfly locs is because they resemble the shape of a butterfly's wing. They are created by wrapping small sections of hair around a thin dreadlock base. This method is gentle on the hair and won't cause any breakage or damage. The only thing you need to be careful of is making sure that the locs are not too tight. If they are too tight, it can cause traction alopecia, which is a type of hair loss that occurs when the follicles are pulled out by too much tension on the scalp.