Hask Macadamia Oil Hair Mask (50g). Macadamia Oil Hydrating Deep Conditioner with keratin is an ultra-restorative, moisturizing treatment that rejuvenate dry, damaged, chemically treated or over processed hair.. Macadamia oil, native to Australia, is known for its absorbing, deep penetrating and cuticle sealing qualities while leaving even the most damaged hair soft and nourished for incredible shine. Treat your hair with this nourishing reconstructive conditioner, formulated to bring life back into your luscious looking locks!. Macadamia Oil Moisturizing Deep Conditioner. Moisturizes, Revitalizes & Repairs Dry, Damaged Hair. Free of: sulfates, parabens, phthalates, gluten and drying alcohol.