Yes, GeminiBio does offer gamma irradiation on our serums. If you are requesting a quote from your GeminiBio Account Manager, please make sure gamma irradiation is included on your quote. Our ecommerce store (store.geminibio.com) will allow you to select gamma irradiation on all applicable sera products from the product detail page. GeminiBio will also send an order confirmation that will detail gamma irradiation for the selected sera. If you are emailing a copy of your purchase order for processing, please make sure the purchase order includes gamma irradiation and the number of bottles to gamma irradiate. If you have any questions, please email our Customer Service team at customerservice@geminibio.com