La Roche Posay Tolleriane Dermallergo Nuit

Selling this tube of Dermallergo Nuit from La Roche Posay. Product is contained in a sac within the tube, airtight and safe from oxidation. Hard to tell how much product is left due to the sac but my best estimate would be 20ml. Only used consistently for about a week and a half. The selling ingredient in this product is a dipeptide (tyrosine + arginine).