I received this from a friend, who had kept it stored away without using it, but I'm still using my current serum, so I'm putting it up for sale. My friend has sensitive skin and it didn't agree with her, so she had kept it unopened for a long time. Please refrain from purchasing if you are concerned about home storage. The item I will be sending is unopened. Product Description: TuVeil's Crystal Essence is a pre-serum for firmness that specializes in Vitamin C derivatives. With high concentrations of APPS and 4.4 trillion VC-IP, along with niacinamide, it works on firmness, fine lines caused by dryness, and pores, leading to firm skin. Recommended for those concerned about signs of aging. Type: Serum/Serum Thank you for viewing.