It is an intensive hair mask that nourishes brittle and damaged hair. Its restorative formula helps to repair bonds within the hair structure to improve strength and elasticity. Series: Resistance Masque Extentioniste. Gender: Ladies. Category: Hair Care. SubType: Masks & Peals. Beauty group: Face. Size: 6.8 oz. Barcode: 3474636613168. Resistance Masque Extentioniste by Kerastase for Women – 6.8 oz Masque.