K18 Biomimetic Hairscience DAMAGE SHIELD pH Protective Shampoo

Protect and cleanse your hair daily with the K18 DAMAGE SHIELD pH Protective Shampoo (formerly known as the pH Maintenance Shampoo). Formulated with an optimized pH of 4.5–5.5, this color-safe, nourish-focused cleanser maintains hair strand health, minimizes cuticle swelling during washing, and protects natural moisture levels. Powered by the patented K18PEPTIDE™, it prevents protein loss to keep hair strong, smooth, and vibrant without stripping or drying.

​Key Benefits:

• ​pH-Balanced Formula: Maintains optimal scalp and hair pH (4.5–5.5) to keep the cuticle closed and protect natural moisture.
• ​Color-Safe & Gentle: Non-stripping formula extends hair color longevity and cleanses without harsh sulfates.
• ​Damage Shielding: Prevents unnecessary protein loss and friction during washing.
• ​Ideal Prep for K18 Mask: Perfectly cleanses the hair surface to ensure maximum absorption of the K18 Molecular Repair Mask.

​How to Use:

1. ​Massage: Apply a small amount to wet hair and thoroughly massage into the scalp and hair.
2. ​Rinse: Rinse completely with warm water.
3. ​Repeat: Repeat if needed for extra cleansing.
4. ​Follow Up: If using the K18 Leave-In Molecular Repair Mask, skip conditioner. Otherwise, follow with your standard conditioning routine.