Unfortunately, no. While a posture brace may help bring your shoulders back, it doesn't strengthen the muscles in the back of the neck or upper back. So, while it may help while it is on, when you take it off, your shoulders will likely go right back to their earlier rounded state.

Do posture correctors really work?

Do posture correctors work? While having good posture is a great goal, most posture correctors don't help you achieve it. In fact, some of these devices can do more harm than good. ... This can cause the core muscles you'd normally use for better posture to relax and weaken.

Do shoulder straps help?

For some injuries, it's vital to use a brace so your injury doesn't worsen or heal improperly. A shoulder brace can help by: Compressing the shoulder joint to reduce inflammation. Reducing shoulder instability to allow injuries to heal more quickly and in the right position.