Are infrared saunas safe to use if you have silicone implants?

This should be safe.  It really shouldn't cause any issues with your implants.  Enjoy the results of your surgery!

Steam rooms, saunas, jacuzzi's, hot baths will not affect your implants wheather they are saline or silicone gel. Your core body temperature (where the implants are) will remain within a few degrees of normal regardless of the outside temperature. Silicone by the way can withstands large degrees of heat without degradation or breakdown. #breastaugmentation#breastimplants

Since silicone breast implants have a melting temperature of well over 270 degrees F, no harm will come to them from an infrared sauna. If you are very early after breast augmentation surgery, I would check with your plastic surgeon to be sure there are no concern about your healing incisions.

Each surgeon has different beliefs regarding activity post breast augmentation. While the sauna should be safe, consult with your surgeon first as he or she understands the scope of the surgery and the specifics about you.

Infrared heat penetrates very deeply.  In addition  I am uncertain of the chemical reaction of the silicon to the presence of infrared radiation.  Personally I would avoided and used traditional saunas.