OH MY BLONDE - BLONDE SEALER | pH REBALANCING MILK BLONDE SEALER is a conditioning treatment which helps restore the pH of the scalp and hair. BLONDE SEALER is ideal to use after all bleaching services and is enriched with the exclusive &-PLEX Bond Repair. WHAT IT DOES: BLONDE SEALER brings out shine in blonde hair and enhances the brightness of bleached hair, adding structure and body. When used after BLONDE TONER, it stabilizes the color pigments.