*Never opened* The Nº.3 Hair Perfector®, infused with patented OLAPLEX Bond Building technology, is a pre-shampoo treatment that is proven to repair and strengthen hair from the inside out. Use the Nº.3 Hair Perfector® alone or paired with OLAPLEX Nº.0 for maximum at-home repair. - Reduces breakage, visibly strengthens hair. - Repairs and protects deep within the hair strands. - Restores healthy appearance and texture