Mondonna
Forum Replies Created
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What is the final PH of your product?
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It depends on your target market. I wouldn’t suggest more than 60ml for facial lotions/creams. For serums, definitely less (~30ml). Check other brands that are comparable to yours and see what they sizes they offer.
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Try Rice Bran Wax. It has a melting point of 79–85°C with nice silky feel.
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For skincare products I usually aim for 5-5.5 unless it is a peel. Your actives should do fine within this range but please double check. Also you can look into any clinical studies on the actives to see what % and Ph they have used that showed results.
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OMG @chemicalmatt I am so grateful for your response. I have been looking for an answer for so long and no one was able to give me a clue. The black lights in the market are 395nm-405nm. Will do some more research to see if there is any lights with the UV-A and UV-B range you suggested.
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Thanks @Gordof for sharing your experience.
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I second @ketchito. I would definitely add HEC to water and let it hydrate for 10-20 min. To reduce the hydration time you can warm the water phase or bring the PH a bit up. Is the HEC you are using R grade?
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Thanks @Margaret! you are very creative
It is admirable. How do you do your stability testing under various lighting? Do you have a light box or you put them next to the window? I am trying to find or make a light box to avoid temperature change. Not sure what kind of light bulb I need to get to replicate north facing sunlight. -
Newtoformulating said:Hello can someone please point me in the direction of a lab in the U.S. for performance testing for my product. (Edge control/Sculpting gel) Thanks
By performance testing you mean Stability and Challenge tests?
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My recent fave is marshmallow root. I make 5% water infusion of it and make shampoo and conditioners with it. Lovely effect on hair.
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Perry said:@Paprik - what convinces you that Sodium PCA is superior to glycerine as a humectant?
“The water-binding capacity of the sodium salts of lactic acid and PCA are higher than that of glycerin. Treatment of guinea pig footpad corneum with humectant solutions shows that the water held by corneum decreases in the following order: Sodium PCA>sodium lactate>glycerine>sorbitol”
Ref: Handbook of Cosmetic Science and Technology edited by Barel, Paye, Maibach
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I like to use:
SuperSolv:
Caprylyl/Capryl Glucoside & Water & Sodium Cocoyl Glutamate & Glyceryl Caprylate & Citric Acid & Polyglyceryl-6 Oleate & Sodium Surfactin
You need to see what ratio works for the eo you are using. usually between 1:3 to 1:5. This is a PEG-free and natural solubilizer. I use plant based Pentylene Glycol with it and it helps with the reducing the amount of solubilizer. -
I use natural fragrances and found Palette Naturals products very interesting.
https://www.palettenaturals.com/shop