iS Clinical does not allow Authorized Retailers to offer open discount pricing on their products.
If you find products that are discounted, they are either old, used or fake.
Don't trust an unauthorized source. See iS Clinical official Retailer list here: iS Clinical
Super Serum Advance+ is a great product! Review by BK
This a great product for improving/sustaining the quality of your skin. I've been using it for 2 years and swear by it. (Posted on 10/30/14)