Deodorant Stick Formulation: Mixing, Ingredients, Staining, and Odor Control

Subject: Deodorant Stick Formulation Questions

Hello,

Regarding your questions about the deodorant stick formulation:

1. Mixing steps for the original formula:

   • Heat the mixture of ingredients until they dissolve. Note that some powder ingredients will not dissolve but need to be dispersed evenly.
   • As the mixture cools and begins to thicken, stir or mill continuously. This is crucial to keep the undissolved powders (Anti-Sweat™, Silk Talc Powder, AminoSilk™, and Safe-B3 if added) suspended and prevent them from settling.
   • Stop stirring when the mixture has thickened sufficiently to hold the powders in suspension.
   • Allow the mixture to set completely into a hard stick.

2. Adding Vitamin B3 (Niacinamide):

   • Vitamin B3 (Safe-B3) is a powder. It should be added during the initial heating and mixing phase along with the other ingredients.
   • You do not need to pre-dissolve it in water as it will be dispersed in the oil/silicone base.

3. Adding oils (Shea Butter, Squalane):

   • Oils like Shea Butter and Squalane should be added during the initial heating phase with the other ingredients.

4. Fragrance/Odor absorber recommendations:

   • The staff recommends using an odor absorber like Citromask (1-3%) instead of strong fragrances. This approach helps to absorb odors rather than just masking them with perfume.

Regarding your follow-up questions:

• Yellow stains from the original formula: Anti-Sweat™ (Aluminum Chlorohydrate) can potentially cause yellow stains on fabric, although this specific type is less likely to stain compared to other aluminum compounds. SmellSorb™ does not cause yellow stains.
• Adding SmellSorb™ and necessity:
  • Yes, SmellSorb™ can be added to the formula.
  • SmellSorb™ acts as an odor absorber. Aluminum compounds like Anti-Sweat™ are currently the most effective ingredients for reducing sweat (antiperspirant effect). If you are concerned about yellow stains, you can remove Anti-Sweat™ from the formula. In this case, the product will function as a deodorant (odor control) rather than an antiperspirant (sweat reduction), and adding an odor absorber like SmellSorb™ or Citromask would be beneficial for controlling odor. If you keep Anti-Sweat™ for sweat reduction, SmellSorb™ is not strictly necessary but can provide additional odor control.

Hope this clarifies the process!