The Penetraitt Deep Strengthening and Repair Masque by Sebastian Professional is a luxurious hair treatment designed to repair and strengthen damaged strands. This 150 ml mask deeply nourishes and helps to repair and fortify hair from the inside out. Ideal for brittle or over-processed hair, it leaves a smoother, healthier, and more resilient feel. Enriched with effective ingredients, it improves hair structure and elasticity. Perfect for weekly use, this mask provides professional care for visibly transformed hair.