Sodium Stearate Deodorant Experiment

This is a collaboration with Revega Cosmetics. 
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See the video for the method. I do also add some commentary on it.
​Formulation Notes: This formula is self-preserving due to the high pH. I am adding a preservative in for the deodorizing and antimicrobial properties. ​

Test #4

Calculations:
100-(16+6+1)=77
73.9/2=36.95
Formulas failed it was curdled after I added the Aluminum Chlorohydrate. See video.

Test #5

Calculations:
100-(3+6+1)=90 
90/2=45
Notes: Most dissolved needed a mini mixer to get the last part. A better method would be to heat the propylene glycol to 80C and then sprinkle in the sodium stearate into the hot propylene glycol. You do need to emulsify the Zinc Ricinolate. It also needs to be in a very hot solution. I used my mini-mixer to do it. It did made it foam a lot. If you were making a bigger batch, you could use a stick blender. It is so important that you clean your equipment right away. I really thought that I messed up some equipment. Wipe it very well and then clean it with 70% Isopropyl alcohol.

The Problems

Sodium stearate is not enough; it is not a complete emulsifier. In all the example formulations I looked at; they added either a fatty alcohol or another emollient/thickener that would help the emulsion. In addition, if you do make it an emulsion it really alters the structure. So for example when I have been doing the tests I was able to use 6% and it worked. However when you really want to make it an emulsion, then you need the high end of 20%. This was based off an example formulation I saw.
Since, I am low on packaging. I could not make another sample. I did a ton more research and found a lot of information out. The glycols are used as solvent, but you still need water in the formulation. Formulation with only glycols will separate out. For some formulations, I have seen at least 75% glycol. Whereas other formulations they have only used 25% glycol, use added the additions slowly.
Understanding that this is soap is helpful as well. Any problems that you have there will also effect sodium stearate. So some essential oils and fragrances can affect viscosity, etc. 
This is part of formulation. You will have fails, but it is important that you work thorough it. I am not done with it yet. I have more tests I want to do with it. I also have other ideas on how to use sodium stearate so stay tuned. ​

Failed Test #5

Sneak peak at an antiperspirant that worked!