Salerm Cosmetics Salerm 21 Boost Hair Mask - 8 vials of 0.44 fl oz. The Salerm Cosmetics Salerm 21 Boost Hair Mask is a hair care product that comes in eight vials of 0.44 fl oz each. It is designed to nourish and revitalize hair, leaving it soft, shiny, and healthy. The product is enriched with silk proteins and provitamin B5, which help to moisturize and strengthen hair. It is suitable for all hair types and can be used as a weekly treatment to maintain hair health. The mask is easy to apply and does not require rinsing, making it a convenient option for individuals with busy lifestyles. It is free from harmful chemicals such as parabens and sulfates, making it a safe and effective choice for individuals looking to improve the health and appearance of their hair.