Quick! Can I store half bottle?

[JollyJoon]

I've discovered that Bleach London violet skies makes an amazing toner for brassy blonde hair. It doesnt make it purple at all but dyes it ashy :)

I only really need half a bottle though, just put some on my hair, can I save half the bottle to use in a few weeks time? Or will it go off? Last time I used a full bottle but it felt like too much product
bleachlondon.com/products/super-cool-colour-violet-skies-150ml

My salon says you can but it will loose permanency (so more like a semi ) but hope someone can say for sure.

Thanks for such a quick reply! This is a washout colour so maybe it will totally lose all its effectiveness 🤔

I stored the rose pink one open for a month or so and didn’t notice any difference. That is anecdotal evidence only you understand and I take no responsibility if you end up with blue hair!