

Ron_93
Forum Replies Created
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Roger that! Thank you.
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Ron_93
DIY formulatorApril 24, 2023 at 10:34 am in reply to: Honest reviews on the institute of personal care scienceHi Jasmine,
I too have a science background (BS in Biological Sciences). I did the advanced certificate in cosmetic science. I thought it was a good program and worth it. Very hands on and your science background will help you understand the information to its entirety. Best wishes to you and your endeavors.
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The end product is a hair conditioner, so this helps a lot. Thank you so much.
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Thank you so much! I’ve been shooting for a pH of 4.5. Pretty much replicating the aussie conditioner. I have some here as a benchmark and the pH is at 4.53. However, they utilized glutamic acid as their buffer based on the LOI
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Roger that. I actually was heating to 75C and then adding phase B. I will increase temperature and mix under low shear. Thank you so much.
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Ron_93
DIY formulatorMarch 23, 2024 at 10:33 am in reply to: Can someone help me with these PreservativesHi Dr. Geis,
Would love your opinion on Optiphen ND (Phenoxyethanol (79.0-81.0%), Benzoic Acid (11.5-12.5%) and Dehydroacetic Acid (7.7-8.3%)) as a single system or would the combination above be a better suited option?
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Ron_93
DIY formulatorFebruary 13, 2024 at 8:47 am in reply to: Amodimethicone and Stearamidopropyl DimethylamineGreat explanation as usual! Thank you so much!
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I see, got it! Thank you
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Hi Perry,
Thank you, Perry. I guess the “liquid” part kind of threw me off being that the type wasn’t specified. I appreciate your help.
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Yes, that’s where I seen it and was utterly confused. I seen a chemist add it post emulsification under low shear. I figured that was the correct way to avoid breaking the network. Thank you for confirming.
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Got it, thank you!
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Hi there. Since sodium carbomer comes pre-neutralized, should it be mixed under high shear for a brief period of time while adding the oil the phase?
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@evchem2 Hi there. I actually tried what you linked but get fish eyes when mixing the powder with water. Any reason why? Is there a specific type of sodium alginate that should be used? Thank you for your insight.
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Roger that. Thank you for the info.
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Yes, it will be for human use. They will only be adding the SPF component to the formula, but not actually mass producing it. I would have to source a CM for production.
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Ron_93
DIY formulatorJuly 11, 2023 at 12:10 pm in reply to: ‘Just Add Water’ Products + PreservationGreat insight! Thank you.
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Hi @philgeis,
I noticed you mentioned the shampoo, but I am curious about the conditioner. What preservative system would be sufficient for a hot pour or powder water-activated conditioner such as the product listed above? I think the single-use packaging verbiage is great, but what if a consumer decided to keep the remaining hydrated conditioner despite the label stating “single-use, discard after use.” Thanks for your insight.
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Ron_93
DIY formulatorApril 24, 2023 at 11:43 am in reply to: Honest reviews on the institute of personal care scienceWhoops, good catch! I mean practical, as there are practical assignments that require students to formulate products.
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Yes, has been for a few years now.
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Haha. Preservative guys are the most important people in my opinion. Thank you for all you do. Take care.
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Roger that! Thank you so much. I have lactic acid here. Would that be a better buffer option given the formula?
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Hi Phil,
Thank you for your responses. Yes, I was considering dropping the pH to around 4.8 or so and switching to Euxyl K 703 (INCI: Phenoxyethanol (and) Benzoic Acid (and) Dehydroacetic Acid).
Euxyl® K 703 contains:
- Phenoxyethanol 78.0 - 84.0%
- Benzoic Acid 11.0 - 13.0%
- Dehydroacetic Acid 6.5 - 7.5%
I am definitely open to suggestions. Thanks brother.