Hello Melanie, thank you for your interest in our product. Yes, the sunglasses we offer at Firmoo provides 100% protection or UV400, which means the lenses can effectively block all harmful UV. Moreover, with darker lens color, it can block light more effectively. But it does not mean the UV protection level is higher. We hope this helps. For any further questions or immediate assistance, you may also call our toll-free hotline at 1-855-487-6006 opens every day from 5 a.m.- 8 p.m. PDT. You can also contact us through our Live Chat Support Team:
Chat with us (24/7) or email us at service@firmoo.com. Please stay safe and healthy!