None of USN products contain illegal or banned substances, however if you were a tested athlete, you would require HFL tested products to ensure that none of our products are the cause for you to fail in any sort of testing.
We would recommend you to register to our Professional Athletes Portal. Please visit the following link to register: http://www.usn.co.uk/shop/account/professional_athlete/Login.aspx?returnUrl=%2fshop%2ftemplates%2fprofessional_athletes.aspx
Once your account has been approved, you will have access to the HFL tested products (all products that are HFL Tested start with “HFL Tested” at the start of the product name).
These products are the only ones that have been tested in accordance to the WADA banned substances list and we can provide you with a certificate upon request to prove that the batch you are taking is safe to use.