--- title: Why is Solius designed to deliver light to the back of the body? description: Solius delivers light to the back for even skin coverage, precise dosing, and added safety by reducing eye and face exposure. --- [Skip to content](https://help.solius.com/faq/why-is-solius-designed-to-deliver-light-to-the-back-of-the-body#main-content) [![sol-logo-primary-rgb-reg-black - email small](https://help.solius.com/hs-fs/hubfs/sol-logo-primary-rgb-reg-black%20-%20email%20small.png?width=148&height=30&name=sol-logo-primary-rgb-reg-black%20-%20email%20small.png)](https://solius.com?hsLang=en) - [Get Started](https://www.solius.com/get-started) - [User Manual](https://www.solius.com/user-manual) - [Clinical Research](https://www.solius.com/research) - [Contact Us](https://www.solius.com/contact) Open main navigation Close main navigation - [Get Started](https://www.solius.com/get-started) - [User Manual](https://www.solius.com/user-manual) - [Clinical Research](https://www.solius.com/research) - [Contact Us](https://www.solius.com/contact) How can we help you? - There are no suggestions because the search field is empty. 1. [Solius Knowledgebase](https://help.solius.com/faq?hsLang=en) 2. [Using Solius](https://help.solius.com/faq/using-solius?hsLang=en) # Why is Solius designed to deliver light to the back of the body? Solius is designed and FDA cleared to deliver light to the skin on your back. The back provides a large, accessible surface area that is generally flatter than other parts of the body, allowing for more even light distribution and a consistent distance from the device. This enables precise dosing and uniform exposure across the skin. Positioning the device behind you also adds an extra layer of safety. Facing away from the panel helps protect the eyes from direct light exposure and increases awareness of the surrounding environment, including other people or pets in the room. We do not recommend using Solius on the front of the body because it makes it harder to maintain consistent distance and positioning, increases the risk of unintended eye and face exposure, and can interfere with accurate dosing when hands and phones partially block the light panel. [![Group 3-2](https://help.solius.com/hs-fs/hubfs/Group%203-2.png?width=195&height=50&name=Group%203-2.png "Group 3-2")](https://www.solius.com?hsLang=en) Solius is an FDA-cleared over-the-counter (OTC) UVB light panel intended to stimulate production of vitamin D in people 22 years and older. Solius is clinically proven to stimulate the production of vitamin D. References to the benefits of sunlight, UVB light, and vitamin D are based upon published, peer-reviewed research. The Solius device is not intended to diagnose, treat, cure, or prevent disease, except for the indications for use described in the user manual for your applicable region. Solius does not provide specific medical advice to users. Users should seek advice from a qualified physician or healthcare provider. This website does not establish a doctor-patient relationship. For detailed product information please consult the User Manual prior to use. Solius® is a registered trademark of Solius Labs, Inc., 100 Ravine Lane NE, Suite 310, Bainbridge Island, WA 98110 © 2026 Solius Labs, Inc.