If bonded correctly, all our hair systems provide you with a secure attachment. If you care for your hair system properly (by removing, cleaning and re-bonding every 2-4 weeks), it will stay securely. If you are looking for the strongest attachment, many of our clients have best experience with the full skin base. You need to apply liquid adhesive all over the scalp before wearing a full skin base hair system, which guarantees the most secure fit.