W in O emulsion

Hi, I make skin care products. 

One of the products I make is an oil based scrub with an emulsifier in it to help with feel. I use vegecide in the product to help reduce the chance of contamination. 

Vegecide from all distributors is out of stock. 

I don't really like using just straight Oil and an exfoliant as a scrub. Leaves the oil left behind on the skin. 

I use Leucidal complete along with other plant extracts to preserve water based products (IE aspen bark powder). 

At the moment I am using Olive M 1000 to emulsify my products and as the sole emulsifier in the scrubs. 

I'm trying to come up with a way to preserve my emulsified scrubs since they will come in contact with water. I have seen a few INCIs with Oils, Leucidal Complete, and an emulsifier. This doesn't make sense to me since the emulsifiers used aren't W/O they are O/W emulsifiers. 

Any ideas? I'm trying to avoid phenonip and phenoxythanol. Trying to stick with as plant-based (I know) a product as posisble. 

Comments

  • HenryHenry Member
    how much water is in your system?
  • MicroformulationMicroformulation Member, Professional Chemist
    1. Vegecide is not the greatest stand-alone preservative. It requires rigorous technique and would still need to be proven by PET. Aspen Bark is not as well.
    2. Leucidal also is a horrible preservative. Search in the group.
    3. The amount of water in the aqueous phase has no impact upon if it is O/w or W/O.
    markfuller@microformulation.com Microformulation.com Microformulation Cosmetic Consulting provides Custom Formulations for both large Commercial accounts as well as smaller entrepreneurs. We can provide Naturally compliant Formulations under the NSF, NPA, Whole Foods and USDA Organic Certifications. BS.Pharm Albany College of Pharmacy, Union University.
  • PhilGeisPhilGeis Member, Professional formulator
    Mark is spot on - thatn is a garbage, green-salad preservative system.  Preservative(s) is the ONLY ingredient used exclusively for safety - prevent contamination in use.  Please don't let your marketing objective corrupt its purpose.
  • @Henry the only water soluble ingredients would be the preservative. 

    @Microformulation the combination of preservatives holds it down in the products. I've tested it up to 1 year with an incubator. It's not JUST Leucidal complete and Aspen Bark. It's a mix of the two and other plant based preservatives depending on what is needed and hurdle technology. 

    @PhilGeis Thanks for the insight. 

    My question still stands if anyone has any ideas of how to reformulate my Oil based emulsified scrub. How to get a small amount of water soluble ingredients into it for the sole purpose of preserving it. 
  • MicroformulationMicroformulation Member, Professional Chemist
    You don't do preservation testing in an incubator. It is a micro test.
    markfuller@microformulation.com Microformulation.com Microformulation Cosmetic Consulting provides Custom Formulations for both large Commercial accounts as well as smaller entrepreneurs. We can provide Naturally compliant Formulations under the NSF, NPA, Whole Foods and USDA Organic Certifications. BS.Pharm Albany College of Pharmacy, Union University.
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