Dear Sir Madam, This is Pary SDehghan from US. I'm looking for products with the following specifications: 9 25 2018 Hello, RE: 3.5% bovine collagen, sterile, purified, injectable. I would like to buy as soon as possible. Please tell me: size(s) you have price per size expiration date Thank you very much for your cooperation Ms. Pary Dehghan USA