I just wanted to add to this because I also mix my own oils for OCM. I usually make a bottle of 60-100ml. That it lasts me for about…3-5 months. My oils keep changing but I always have 10% Castor oil. The rest ranges from raspberry, avocado, jojoba, sweet almond, camelia, argan, rosehip, baobab, sunflower, olive, sesame, neem to marula. I usually mix three to five different oils. The only essential oils I have ever used are carrot and geranium rose, separately. Twenty drops for a 100ml bottle. I usually also add 10% vitamin E. I’ve been doing this for two years and I have never had an allergic reaction nor have the oils smelled bad or seen black dots. I’m not saying it did not go bad, but to my limited knowledge it does not seem to have ever been the case.

Denise, I’m so sorry for not replying sooner, I’ve only just seen this now. 😳

I guess you don’t need my answer anymore, but here it is anyway. Yes, plastic is ok and yes, it depends on the carrier oils. Still, I recommend you do small batches that will last only a few weeks, just to be on the safe side. And if you’ve already tried it, please let me know how it went.

I hope hot water is enough to sterilize the bottle. Do you happen to know how long my Cleansing Oil would last, I think it just depends on my carrier oils, right? Like, 6 months or so.