The Gatineau Collagen Expert Ultimate Smoothing Serum is a luxurious day and night treatment designed for all skin types. Packed with collagen as its main active ingredient, this serum is specifically formulated to smooth and improve the overall appearance of the skin on the face. With a generous volume of 30ml, this boxed product is perfect for daily use and has a recommended retail price of £68. Ideal for those looking to enhance the collagen in their skincare routine, this serum is a premium addition to any skincare collection.