Sebastian Professional Penetraitt Deep Strengthening And Repair Masque is formulated to intensely nourish and fortify damaged hair. This powerful treatment penetrates the hair shaft to rebuild strength from within, addressing breakage and dryness caused by chemical treatments or heat styling. Regular use promotes noticeably healthier, more resilient, and vibrant hair. Ideal for replenishing severely damaged locks, this masque restores essential moisture and improves elasticity.