I'm so far behind on comments - I think I might be in mid-April at this point - and I'm trying my best to answer the best I can. I'll be posting quite a few on the blog over the next little while as I answer them in the order in which they were written, so watch this space!

In this post, Fun with formulating: Making toners, LubLub asks: A couple quick questions... 

1. I read somewhere that aloe vera juice cannot be preserved.. Regardless preservative, it'll go rancid, do you know if this is true" And if it isn't, do you know if rice water (organic rice booked in distilled water) used in the toner would preserve just as well with liquid germall plus"" 

2. Have you ever used organic raw spoke cider vinegar in your toner in small amounts" It's great for acne prone skin, so what's your thoughts"" 
A quick lesson, if you'll indulge me. Rancidity is about the oxidation of oils, which is why we add anti-oxidants to our products that contain oils. Aloe vera juice is water soluble, therefore we aren't worried about it going rancid. We will worry about it being contaminated by things like bacteria, yeast, and mold, so we need to have a preservative. When I get it from my suppliers, it contains preservatives, so I don't need to add any to the bottle. If you get it from somewhere like Wal-Mart and it proudly proclaims "NO PRESERVATIVES", get a good broad spectrum preservative like liquid Germall Plus used at the maximum amount ...