Description - Brand Name: K-18 - Volume: 50ml /1.7 fl oz - Period After Opening: 24 Months - Function: leave-in treatment to clinically reverse hair damage - pH-optimized -(5.0-6.0) - Takes damage repair further - Restores hair from even extreme damage - Delivers immediate and lasting results - Simplified repair - Works on all hair types How to Use - IN the Shower: Shampoo, do not condition. - OUT of the Shower: Towel dry thoroughly. - Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition. - Work evenly into hair from ends to roots, one pump at a time. - Let sit for 4 minutes to activate. Do NOT rinse out. Style as usual. Package Includes - 1Pcs*K18 Hair Mask