This is a retinol-infused serum that supports skin firmness. - Brand: COSRX - Product Name: The Retinol 0.1 Cream - Volume: 20ml - How to Use: Apply a small amount after using serum - Ingredients: Retinol, Niacinamide About half the product remains. There are holes in the areas shown in photos 5 and 6. Would anyone like to try it out? Thank you for looking.