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Preservative Free Lotion
Hello,
There is a company that makes preservative free lotion. The lotion is quite nice and Ph is 3.6.
Does anyone have an idea about how this lotion can be made preservative free? It is fairly spreadable and absorbs well.
Thank-you
ingredients:
• Aqua
• Butyrospermum parkii (Shea butter)*
• Avena sativa (Oat) kernel oil
• Carthamus tinctorius oleosomes
• Cetearyl alcohol (Cetearyl alcohol)
• Coco-glucoside
• Helianthus annuus (Sunflower) seed oil
• Lavandula angustifolia (Lavender) flower oil
• Cedrus atlantica (Cedarwood) bark oil
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11 Replies
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Can you identify the specific product/brand?
Is there anything unique about the package?
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It’s Rocky Mountain Soap. The lotion is packaged in clear pet bottle with pump.
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Sure seems risky. i asked for their justification Let’s see what they say.
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Thank you!
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here’s what they said, it’s BS
Products can be made with zero preservatives (oat lotion) adhering to the following conditions:
Use 100% sterile raw materials
Use 100% sterile packaging materials
Follow strict GMP from start to end, as listed below.
Design the product as very low water-activity
Maintain the pH in the 4-6 range
Use raw materials which act as pseudo-preservatives.
Minimize human (user contamination).
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Hard to see how they “sterilize” and maintain as sterile packaging and raw materials and how thyey consider Aw in context of an emulsion.
Asked for validation through consumer use - they forward to their product development.
Let’s see.
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If you’ve ever worked in sterile processing, you would see that sterile conditions would be impossible to maintain in A Cosmetic Setting. It sounds like they have read a couple of articles on the Hurdle Technique. I would be interested in seeing any testing results. Hopefully, MOCRA will urge people to be more conservative in their risk assessments.
“Pseudo-preservatives?”
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This reply was modified 6 months, 1 week ago by Microformulation.
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This reply was modified 6 months, 1 week ago by
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Imagine my surprise!! Ricky Mountain product development never got back with info requested.
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Thanks for trying though. I read that if water activity is below 0.70, preservatives would not be needed. Perhaps this is their approach.
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0.7 prevents growth, does not kill. For emulsions Aw may not matter.
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I’m not surprised. Someone in the Forum (??) may have spoken to them in the past in a consult call. That someone passed on the work since they were reluctant to take any advice or direction.
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