If your wife's breasts have lost their firmness, there are a few things she can try to help improve their appearance and feel. Some options to consider include:
Breast suction pump machine (or vacuum breast enlargement): There are a variety of vacuum breast enlargement and lotions on the market that claim to help firm and lift sagging breasts. While these products may provide some temporary improvement, it's important to use them as directed and not to expect drastic or long-lasting results.
Exercise: Engaging in regular exercise that focuses on the chest muscles, such as push-ups or chest presses, may help improve the appearance of sagging breasts.
Supportive bras: Wearing a well-fitted, supportive bra can help lift and support the breasts, reducing the appearance of sagging. Consider encouraging your wife to get measured for a new bra to ensure the best fit.
Moisturize: Applying a moisturizing cream or oil to the breasts can help improve skin elasticity, which may help reduce the appearance of sagging.