Posture Brace Will A Clavicle Brace Make My Posture Better?

Will a clavicle brace make my posture better? - posture brace

I do not think the scoliosis, but my back is not what I wanted. There is a curve, like a premonition, and it really ruins my posture, especially when I wear fitted shirts. I plan to use a key to the collar bone to the back straight, but I fear it would change nothing, or worse, to my back. Can my position or is it better?