The wash-day pair: the Nourish & Renew Hair Mask (200 ml) for your weekly deep treatment, and the Nourish & Grow Me Hair Serum (50 ml) to keep moisture locked in between washes. Nourish & Renew Hair Mask — 200 ml Nourish & Grow Me Hair Serum — 50 ml Bought together you save €2 compared to the single products.