No, with correct application Great Lengths Keratin bonds will not damage your hair. The applicator uses less heat than a curling iron. Additionally, the bond is applied in the direction of your hair, eliminating the possibility of breakage, as with many ‘clip in’ style extensions.
When applied correctly, Great Lengths extensions can last up to 6 months. As your hair grows, the bond naturally grows out with it. Proper treatment such treatment, such as using non-harsh shampoos (see Wetlines) will extend the life of your extensions.
With correct placement the bonds will not show. The bond itself is the same color as your hair and so small that you can wear your hair up or down and no one will notice.
Unlike the awful celebrity photos displaying large ugly bonds and misplaced wefts, Great Lengths extensions are virtually indistinguishable from your own hair.