No. However, make sure that while you carry your phone in your pocket, the rear side of the SYB Phone Pouch is facing your body. This is because the shielding material is on the rear side of the SYB Phone Pouch, and it deflects the radiation in the opposite direction, i.e., to the front.
If you have any additional questions, send an email to our customer support team at hello@shieldyourbody.com.