BondiBoost Thickening Therapy Mask is a powerful treatment rich in minerals, vitamins, amino acids and antioxidants. Targeting fine, flat and weak hair types, it’s loaded with Biotin, Vitamin B5 and Niacin (Vitamin B3), a densifying and strengthening complex developed to plump up the hair fibres and improve the keratin structure for visibly thicker, stronger hair. Free from silicones, parabens, sulphates, phthalates, mineral oils, phenoxyethanol and drying alcohols.