Egg white is also good for sagging breasts due to its astringent and skin-nourishing properties. The hydro lipids present in egg white helps lift loose skin around your breasts.Beat 1 egg white until you get a foamy texture. Apply this onto your breasts and allow it to sit for 30 minutes. Wash it off with cucumber or onion juice and then with cold water.You can also prepare a breast mask by mixing 1 egg white with 1 tablespoon each of plain yogurt and honey. Apply it onto your breasts and leave it on for 20 minutes. Rinse it off with cold water.Follow either of these remedies once a week to enjoy firm breasts.