[EllaC]

I massage with my own rub mostly out of raw aloe vera from the plant, but I think I am the only one that has been doing that... Not easy either as it drys fast makes rubbing it on a little more aggressive and uncomfortable and I am no expert either.

Ok so i found this so you may be onto something
i don't know about the estrogenic nature of aloe which might be why it works too but i found this on a few sites

Aloe vera has natural skin-tightening properties that can help get rid of sagging breasts. The antioxidants in aloe vera prevent damage caused by free radicals and help firm sagging breasts.

Apply aloe vera gel onto your breasts and massage gently in a circular motion for 10 minutes. Allow it to sit for another 10 minutes and then wash it off with warm water. Repeat this remedy 4 or 5 times a week to get effective results.
You can also prepare a mixture of 1 tablespoon of aloe vera gel and 1 teaspoon each of mayonnaise and honey. Apply this onto your breasts and leave it on for 15 minutes. Rinse it off first with warm water and then use cold water. Do this once a week

But for the original question i personally don't think flaxseed does much externally, not for me anyway.