I personally didn’t have high hopes for these, but I have alwYswanted to try them! To my surprise, they worked a lot better than I was anticipating. I thought I would hate them, but they proved to be handy. I didn’t notice them slipping down at all while wearing and the tightening aspect of them really worked. It gave me a nice amount of cleavage and I didn’t need to be self conscious about any unwanted parts of my bra showing. I will say though, I don’t like how these are only good for a few uses, but that is just a personal preference. Otherwise, I would recommend these!
https://www.amazon.com/HouNa-Adhesive-Strapless-Invisible-Drawstring/dp/B07DRHRSLW