Sunday, July 20, 2014
Weekend Wonderings: Why can't I use Germaben II with an emulsifed scrub? Can I use the deodorant additive in a solid scrub bar?
In this post on making a black cocoa emulsified scrub, Sophia asks: Oh no, I can't use germaben II? I thought because there is e-wax in it I could use it? So what will happen? I watched a lady use it in her e-sugar scrub and it worked for her... now I'm worried! I had been using phenonip but Wholesale Supplies Plus ran out!
When you're considering what preservative to use, you'll want to know what type of product you have. An emulsified scrub is an anhydrous product, which means it doesn't contain water.
Take a look at the preservatives comparison chart. So what does Germaben II require to work? Most of the ingredients in Germaben II require water to dissolve, so it won't work in an emulsified scrub that contains no water. You need to find something that works with anhydrous products, like Liquipar Oil, Phenonip, or Optiphen.
I don't think it did work for the woman who made an emulsified sugar scrub because using a water soluble preservative in the anhydrous product is on par with using no preservative at all in the product. Again, Germaben II is a preservative that requires water to work, and without water, it's a fail.
Preservatives section of the blog
Preservatives: Choosing a preservative
Preservatives: Water activity and sugar scrubs
In this post, Road Trip Essentials: Scrub bars (part two) Honey Lady asks: I am wondering as I read this several years after it's been posted if I could make this with the Deodorant Additive available from Brambleberry? I use it in a deodorant soap I make, and like it. But I know several people who could use 1.) foot scrubs, AND 2.) deodorants for stinky toes!
The deodorant additive at Brambleberry has an INCI of Saccharomyces Ferment, Potassium Sorbate, Sodium Benzoate. The last two things are preservatives, which we know work only in water soluble products, so we can conclude that this is a water soluble ingredient. Can we add it to a solid scrub bar? We can add it to an emulsified scrub bar because it contains an emulsifier that will allow us to add some water soluble ingredients. I regularly use water soluble sodium lactate as a bar hardener, and I occasionally throw in some proteins or other additives in the mix when I feel I need them.
As a secondary note, you can make a nice spray for stinky feet using a few ingredients! You could make it with 2% to 3% deodorant additive with maybe 1% peppermint essential oil, 0.5% to 2% preservative of choice, and water to make 100%.
Here's another idea! Note that pretty much all this stuff is optional because you can make a perfectly good spray with distilled water, preservative, peppermint essential oil, and the solubilizer for the oil. But I'm adding these things because they offer some great features for your feet! (Should those be feet-ures?) I'm adding the allantoin because it's good at skin softening and protecting, the peppermint hydrosol and peppermint essential oil because they're good at masking odours and increasing circulation, aloe vera to offer moisturizing and anti-inflammatory properties,
STINKY FEET SPRAY
HEATED WATER PHASE
67% distilled water
20% peppermint hydrosol
10% aloe vera
COOL DOWN PHASE
1% polysorbate 20 or other solubilizer
1% peppermint essential oil
0.5% to 2% preservative
Mix the polysorbate 20 (or other solubilizer) with the peppermint essential oil. Put aside. In a heatproof container like a Pyrex jug, weigh out the the distilled water, peppermint hydrosol, aloe vera, and allantoin and put into a double boiler and heat until 70˚C. Hold at that temperature for 20 minutes. Remove from the heat, allow to cool to 45˚C before adding the cool down phase ingredients.
Add some of the deodorant additive 2% to 3% in the cool down phase and remove 2% to 3% from the water phase to keep the total at 100%. (I'm adding it in the cool down as I don't know if it's heat sensitive!)
And as a note, as I mention on the side bar of the blog, there are no old posts. I get notifications for every single comment, so the earliest post is as relevant as the newest one when it comes to getting my attention!
Join me tomorrow as we take a look at using sunflower oil in solid perfumes before wrapping up the series on Tuesday.