Hello all,
I've used these a few times and they seem to say 18 months on the bottles, however I've noticed a colour change once opened, from relatively clear to quite dark. Has anyone had any experience of this and are they still OK to use?
I've used these a few times and they seem to say 18 months on the bottles, however I've noticed a colour change once opened, from relatively clear to quite dark. Has anyone had any experience of this and are they still OK to use?
