Breast reduction spray is an external product, which is called breast reduction. However, there is no scientific research to prove that the use of breast-shrinking spray can effectively reduce the chest. The size of the chest is mainly determined by genes, hormone levels, fat distribution and other factors, and it is difficult for external products to directly affect these factors.

Breast-shrinking spray may contain some ingredients that shrink pores or tighten skin, such as Ophiopogon japonicus and lotus flowers. These ingredients may give people a feeling of contraction, but they will not have a substantial impact on the size and shape of the chest.

If you are not satisfied with the chest size, it is recommended to seek professional medical advice, such as consulting plastic surgeons or other related professional doctors, who can provide appropriate solutions according to your specific situation. Remember, the natural changes and diversity of the body are normal, everyone's body shape has its own uniqueness, and the most important thing is to learn to accept and cherish your body.