Skin Ceuticals Hydrating B5 30ml

To whom this may concern ,I am writing this message to let you know that im interested in this product and want to know its price and the minimum order quantity. Also, I am interested other products of this brand such as vitamin c + e + ferulic acid and b5. By the way, I am kind of new to this kind of platform, so can you please let me know how you can offer the competitive prices and are they authentic? Sincerely,Vee Nguyen