The mask that made overnight sheet masking go viral, and it still earns the hype. Biodance's Bio-Collagen Real Deep Mask is a full 34 g ampoule solidified into hydrogel. Ultra-low molecular weight collagen of 243 daltons sinks past the surface where conventional collagen simply sits, oligo-hyaluronic acid holds water in the deeper layers, and galactomyces ferment filtrate works on tone and texture while you sleep. As the essence absorbs, the mask turns from milky white to completely transparent. That is your cue that it is done. Nothing is left behind on your pillow and there is no sticky finish, just skin that looks plumper, smoother around the pores and lit from within. How to wear it Cleanse and tone. Apply to dry skin for the best grip. Peel off the film and place the upper and lower sheets on the face, smoothing them from the center outwards. Leave on for at least 2 to 3 hours, or overnight, until the mask turns transparent. Remove and pat the remaining essence into the skin. No rinsing needed. Free from artificial fragrance, artificial dye, PEG and 19 controversial ingredients. Hypoallergenic and suitable for all skin types, including sensitive skin.