The Biodance Bio-Collagen Real Deep Mask is a skincare product that is claimed to have pore-tightening, firming, and hydrating properties. It is infused with ultra-low molecular collagen, galactomyces ferment filtrate, and glycerin, among other ingredients. The mask is described as being suitable for all skin types, including sensitive and acne-prone skin. It is also said to be free of 19 harsh controversial ingredients and has been tested for low skin irritation. The mask is designed to be left on for 3-5 hours to allow the ingredients to be absorbed into the skin. The product is available in various pack sizes, including single sheets and sets of 4 or 7 sheets. The price of the product varies depending on the retailer.