Redken Acidic pH Sealer is a professional-grade, pH-balancing treatment that completes the Redken backbar system for visibly healthier hair. Expertly formulated with an acidic pH between 3.0–4.0, this salon-only solution seals the hair cuticle to lock in the effects of protein and moisture treatments, restoring balance and shine in just one use. When used as part of the Acidic Moisture Concentrate and Acidic Protein Amino Concentrate system, this pH sealer helps visibly reduce surface damage while promoting long-lasting smoothness and radiance. Designed for customisable backbar services, it supports hair health across the three critical pillars: protein, moisture, and pH. Acidic pH (3.0–4.0) to rebalance and close the hair cuticle Seals in moisture and protein treatments Enhances shine and smoothness after salon services Visibly reduces surface damage when used in system Safe for use on colour-treated and chemically processed hair How To Use: Use following Redken Acidic Moisture Concentrate and/or Acidic Protein Amino Concentrate Apply evenly to treated hair after concentrates Do not rinse out Style as usual For professional use only; avoid contact with eyes This essential finishing step ensures optimal results from Redken’s advanced treatment range, leaving hair with lasting smoothness, strength, and reflective shine.