cetearyl ethylhexanoate, seventh77 asks: Is it as dry, drier, or less dry than BTMS-50? I find BTMS-50 to be far too drying for my skin. I like the powdery feel, but it leaves my skin feeling dry and not moisturized. I don't like greasy or oily feeling creams, but if cetearyl ethylhexanoate is similar to BTMS-50, then it probably won't work for me.
The esters feel more like using hazelnut oil or grapeseed oil rather than using something like BTMS-50 as an emulsifier. I don't like the powdery feel either, but I love this ester! I would compare it to one of the drier feeling oils - hazelnut, grapeseed, borage, evening primrose, or pomegranate oil - or cyclomethicone. I really love this stuff!
As an aside, have you seen the price of borage oil lately? Easily double that of evening primrose! Since they are very similar, I'm going EPO instead!
Back to the very basics: What you need to know when creating any product, Chrissy asks, I know that preservatives are required in water based products, and this may be a stupid question but what if I am making a shampoo with canned organic coconut milk, castile soap and oils. Is citric acid good enough or should I be using a preservative and anti-oxidant? So far the only "preservatives" I have used are honey, glycerin, 70,000 IU Vitamin E oil, rosemary essential oil, and basil essential oil. As you can see those aren't exactly preservatives. I don't really want to use any harsh chemical preservatives, but I want my shampoo and my conditioner which is coconut milk and avocado based to last longer. Any suggestions?
Citric acid isn't a preservative. Essential oils aren't preservatives either. (Can we use essential oils as anti-microbials? No.) Glycerin definitely isn't a preservative, and honey isn't either. These are all anti-oxidants, meaning they retard rancidity of oils and butters. They will not do a thing for your products when it comes to contamination or beasties.
Any time we use water in a product, we need to use a well tested broad spectrum preservative in that product. Any time we use a water like ingredient in our products, like hydrosols, coconut milk, and so on, we need to use a well tested broad spectrum preservative in our product. If you don't use a preservative, your product has a shelf life of about three days in the fridge.
Have you tried this shampoo yet? I would caution you to make a small amount as this will be an alkaline product, and our hair doesn't tend to like cold process soap type shampoos like castille soap because of the alkaline pH.
Having said this, your product will have a pH of 8 or higher, and often times we hear we don't need preservatives in alkaline products. I'm not sure about this, and I would encourage you to use one that works in that pH, like liquid Germall Plus.
I don't recommend using fresh fruit or veggies in our products. They are incredibly hard to preserve with the best of preservatives used at maximum amounts, and you're just asking for serious contamination! Use powdered extracts or hydrosols or other purified versions in your products instead.
So the quick answer is yes - you need to preserve this product with a well tested broad spectrum preservative. The long answer - well, you just read it!
I keep seeing avocado in hair conditioner recipes - What's the point of a fresh avocado that the avocado oil can't do? And just curious...what does the coconut milk do in the recipe that water can't do? Just wondering...