I think Julia is just cleaning up her act a bit: losing some weight and avoiding the nasties in various cosmetics; at this stage of life, one of the things that happens is that your skin can become terribly reactive (not to speak of the other stuff!). (The only thing about going natural with the cosmetics is the trade-off/compromise you have to make with the overall polish of your look: the look and performance of the truly natural stuff will, a lot of the time, just not look as good as the more synthetic stuff out there, but at least you can sleep at night.) The thing she won't let go of (yet) is dying her hair: but she does use Aveda colour for this, which, out of all the permanent hair colour products on the market, is the most natural. You can't eliminate risk in life, but you can do what you can to minimise it - I think that's the road she's going along.
PS: all the best to BurlyBear and jacqualina's mums.