OLAPLEX® No.4 BOND MAINTENANCE™ SHAMPOO cleanses while adding hydration and repair. The newest addition to the family, OLAPLEX® No.4-P maintains all the benefits of the original and deposits just the right amount of tone to neutralize any unwanted warmth between salon visits. Whether your blonde comes naturally or from your stylist, root to tip or balayage, even if you’re proudly grey - OLAPLEX® 4-P BOND MAINTENANCE PURPLE SHAMPOO will help keep your color bright