In this post, Aicha asks: I love matcha green tea powder! Can this be used in lotion bar recipes?
The short answer...no. The long answer...yes, but not the powder.
Green tea powder is a fantastic addition to our products (click here for the PDF on the topic!). It's full of catechins, anti-oxidants, caffeine, proanthocyanidins, and more, which are great for our skin! Green tea powder can be used at up to 0.5% in the cool down phase of our products - it's heat sensitive - and I like to keep a little warm water from the heated water phase to help it dissolve before adding (it's also water soluble). In our emulsified products, though, it can cause a redox reaction, which can cause all kinds of weird things to happen in our lotions, the main annoying one being separation. This doesn't always happen, but it can, and that's annoying.
The Personal Formulator, and here's an Ecocert version at Lotioncrafter.) Liquid green tea extract is water soluble - as is green tea powder - so it's a great addition to any product in which you might like to include green tea. I tend to use it at 5% in my cool down phase in place of the 0.5% powdered extract. Although the Personal Formulator picture shows a brown coloured liquid, the version I have is clear, so I like to use this in things like facial cleansers or toners, where clarity is an issue. (In this cleanser - which I've only just realized I haven't posted, so look for that in the next few days - I'm using a bunch of extracts that are very dark coloured. I don't mind, but your friends and family or customers might!)
Brambleberry recently! The INCI is Capric Triglycerides, Camellia Sinesnsis Leaf Extract. We know the latter is green tea extract, but what the heck is capric triglycerides? It's a fraction of coconut oil (fractionated coconut oil has an INCI of caprylic/capric triglycerides), so it's a very light emollient, like fractionated coconut oil without the caprylic triglycerides. So what we have here is a very light oil with green tea extract in it. Brambleberry recommends its use at up to 6% and I'm going to suggest we reserve it for the cool down phase because green tea extract is heat sensitive.
Join me tomorrow for a few ideas on how to use oil soluble green tea in our products!
And note: I'm not affiliated with any supplier or manufacturer, so my links are suggestions for where I found the product. I pay for all my ingredients myself, unless otherwise noted!