ISANA PROFESSIONAL Plex Hair Mask is designed for intensive care of damaged, weakened, and chemically or heat-treated hair. Its formula enriched with a Plex complex helps strengthen the internal hair structure, reduce breakage, and restore hair resilience. The mask deeply nourishes the hair, leaving it smoother, softer, and shinier without weighing it down. To use, apply an appropriate amount to clean, damp hair, focusing mainly on lengths and ends, leave on for 3–5 minutes, then rinse thoroughly with water. Recommended for use 1–2 times per week.