Newbie equipment, Chinny asked: What are the cup-like things in the second picture? I guess they are heat proof?
They are! These are tri-corner beakers from Lotioncrafter*. I love them! They are great for heat or just mixing or looking awesome on my workshop bench. I have quite a few sizes - 250 ml, 400 ml, and 800 ml - as these are the sizes in which I tend to make things. (I just realized they have 50 and 100 ml versions, which I must own now!!!)
Are you curious about what's in the container? I've been experimenting with Siligel, a natural gelling agent that can handle loads of electrolytes. This is my magnesium chloride or "magnesium oil" gel, which I'll be sharing with you soon!
What's Siligel? I'll point you over to Lotioncrafter* or Formulator Sample Shop* to learn more about it now. I'll have a write up about it next week! Woo! In an unrelated bit of information, did you know that $10 subscribers to my blog on Patreon get a 5% off coupon for Lotioncrafter? That could come in handy if you're buying things there. Just saying...
Is emulsifying wax part of the oil phase?, Kirsten suggested: For beginners it might be good for you to clarify why cetyl alcohol is part of the "oils". I know when I was starting, that was very confusing as it does not appear to be an oil.
Cetyl alcohol is a fatty alcohol and is oil soluble, as is behenyl alcohol and cetearyl alcohol. Anything that is oil soluble and needs to be emulsified in a lotion is considered part of the oil phase. This includes things you might find in the cool down phase, like Vitamin E, fragrance oils, and so on.
Anything that's oil soluble is part of the "oil phase" when we're calculating how much emulsifier to use, regardless of where we find it in the lotion making process.
It is not an emulsifier - it is something that has to be emulsified by the emulsifier in a lotion. It may help stabilize an emulsion - we see that with Simulgreen 18-2 - but it doesn't emulsify things. It may be used as a booster with conditioning compounds like Incroquat BTMS-50, but it isn't a conditioner on its own. In this same post, Debbie suggested we think of it as a thickener and emollient, and that's a great way to describe this ingredient!
Learn your INCI names if you're ordering ingredients! This is the International Nomenclature of Cosmetic Ingredients names and it should be readily available when you buy an ingredient!
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Just a few thoughts as I work my way through the comments!