Sissi99
Forum Replies Created
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I would say you need to, as honey still has some water content.
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Do you think the caprylyl glycol would be soluble enough for this without adding any emulsifiers?
I didn’t really look at optiphen because I couldn’t find any suppliers near me -
“Melanin is the natural protection mechanism of your skin to prevent UV damage. ” Vitamin C also protects skin from UV damage, and although melanin is protective the way that it happens (the link between cancer and melanin concentration) is not completely understood. I guess people using products that make skin more UV sensitive should use sunscreen protection(as most products already recommend). I don’t see how this can cause adverse effects if you have a certain amount of care.
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Note: I was confused when writing this. Panthenol is an alcohol and the proteins I was talking about (silk, why I thought the panthenol was it I will never know) I ended up removing from this final formula. So I seem to be talking about something that does not make sense. I guess I need to go clean up all the notes I have because I’m making a mess.
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Thanks @Microformulation ! I will try to formulate with it then and report results. I feel a bit confused when there is too much information, I think I will create a table for future comparisons. Would you mind telling me if that picture you posted earlier is available online and for other preservatives? The information is really neatly explained.
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Thank you @Microformulation ! I think this was the post that talked about proteins and organic acids: http://swiftcraftymonkey.blogspot.pt/2010/10/preservatives-optiphen-nd-or-rokonsal.html?m=1 I will try to find references in academia. So at pH 5.5 the Geogard 221would be fine?
And yes, potassium sorbate works better at pH lower than 6. I think at 5.5 it’s only 30% effective but I was adding it just as a precaution.
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@Doreen81 thank you so much for your answer. The reason for don’t wanting to use formaldehyde releasers is the same as the parabens, I re-read it and I should have worded it better (sorry english isn’t my first language). Would Chemikons (INCI: 2-phenoxyethanol, Ethylhexylglycerin) be enough?
@Microformulation Did you mean that dehydroacetic acid targets fungi? Because I knew it, I just thought that because I use panthenol and proteins can deactivate it I should add something extra. Sorry if that was not what you meant. Or maybe I am wrong about the proteins. I just kept reading things and taking notes so now I am not sure where I got this information. Let me have a few minutes to find my source!