em88
Forum Replies Created
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CAPB has NaCl around 5% so you can not claim NaCl free.
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If foam is created during the process of making the shampoo, in my opinion is a problem.
1. you can’t see if you are getting the result you want in terms of appearance (if everything is dissolved)
2. you can’t check the viscosity
3. Time is wasted for the foam to disappear
It is possible to incorporate SA in the shampoo and avoid foam 100%
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I told you that after adding AS, foam will be formed.
The link I provided was to have an idea and even make something similar. -
https://www.makingcosmetics.com/Salicylic-Acid-Solution_p_1123.html
Have a look at this link. You can make something similar. -
You are using SLES at 28% so you should not have issues in the preparation process.
I like the idea of partially neutralized first, this will make it easier for the other ingredients to be homogenized properly. -
SA is soluble in surfactants (at last based on my tests SLES+CAPB)
The problem you may face as well is, if SA is added as powder in the shampoo, it will increase the viscosity and foam will appear.
Have you planned any pH range for the shampoo? I increased the pH to 5-5.5. -
That is a very bad way of requesting something!
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I guess you don’t work there anymore?
You should know that these things are everywhere in the world. I’m not so sure if a report will do anything, but you can make a report. -
It appears to me that Cosgard has an other composition.
How are you going to add the preservative in the water phase after cooling down? You are going to mix both phases at probably 60-70 C.
Just add it after the emulsion is prepared and cooled at 25-30 C. -
My idea was to check if those powdered ingredients that you add, at the concentration you are using, will or will not induce a pH change in a water solution. For example if you will not notice any pH change in the water solution, there might be a good change that the pH of the cream you are making will remain the same as it was in the beginning (base).
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https://toxtutor.nlm.nih.gov/02-005.html <- Margin of Safety
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“Biological systems (bees included) can vary in the amount of active constituent in any harvested product. Products must be consistent within a defined range for active ingredients. How will you accomplish this?”
Great point!
How are you going to standardize the bee venom?
If you can’t find specific studies (not only that prove its efficiency, but also mentions the percentage range), you will have to make your own studies. What Perry found is a good start. 0.006% seems to confirm more the 0.01% you said in your first post. -
I have seen a few products using pyroxylin. It should be soluble in ethanol.
https://www.hpra.ie/img/uploaded/swedocuments/2160432.PA0278_015_001.479da2a9-91d8-4232-a145-f71d0c7fae69.000001Product%20Leaflet%20Approved.150506.pdf -
If the base lotion has a very high viscosity, how do you know that after adding the powdered ingredients you are getting an homogenous product? It is very difficult to incorporate powdered ingredients in a high viscosity mass. In these cases it is recommended to dissolve the powdered ingredients or to heat the mass at some point it is easier to incorporate powdered ingredients.
Try to make a water base dilution with the exact concentration of those ingredients you are adding and check if those ingredients do cause pH change. -
I will contact them. I’m pretty sure the premix will be very expensive
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Very interesting, indeed. What might be the price range of this premix?
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Have you tried adding more salt? 0.5%, 0.75%, 1%
PEG-120 Methyl Glucose Dioleate or PEG-150 disterate will increase the viscosity. Try adding 1-2% of PEG 150 distearate.
What is the viscosity you are looking for? -
I was thinking myself changing salicylic acid with Salix alba/nigra extract. As far as I remember there were three types based on the natural salicylic acid concentration, 10%, 20% and 50%
Here are some links you may find useful
http://activeconceptsllc.com/products/botanical-extracts/
http://activeconceptsllc.com/wp-content/uploads/2014/07/10229-ABS-White-Willow-Bark-Extract-Powder-NewTechnical-Data-Sheet-v1.pdf
http://glenncorp.com/wp-content/uploads/2017/07/Salix-Alba-Willow-Extracts.pdf -
Of course pH is temperature dependent, and professional pH meters measure the temperature in the same time. And yes, the room temperature is the usual temperature to measure the pH. By increasing the temperature I was referring for several grades not till the point the product is melted.
What kind of electrode do you have? It may work for semi-solids too.
Here are some info regarding electrodes
https://www.fondriest.com/pdf/thermo_ph_electrode_hb.pdf -
First of all, I’m not your dude.
It’s clear from your request that you are even smarter.
No one is going to guess what “certain datas” you are looking for
https://biology.stackexchange.com/questions/5324/functionality-of-vitamin-a-bx-c-d-e-k-as-used-in-cosmetics-for-the-skin
In the references there are listed some articles you may read. -
Google
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You should avoid heat as well. Based on the ingredients you are using, you have a hot emulsion process. Try adding kojic acid at the end of the process when the cream is cool.
The pH of the cream should be slightly acidic -
omg, it looks like chocolate.
Probably the color is more darker at the end because is less cream.
That is an oxidation issue (I was right finally lol)
You can use Kojic Acid Dipalmitate instead of Kojic acid, it appears more stable.
https://www.in-cosmetics.com/__novadocuments/2888
“2. Light and Heat Stability
Kojic Acid Dipalmitate is light and heat stable, while kojic acid tends to oxidize over time” -
Yeah, that’s right. My bad. I did not understood the problem correctly.
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K30 and k90 are both used in solid forms. You can look for the solid form distributors too.
https://www.sigmaaldrich.com/catalog/product/sial/81440?lang=en®ion=RO&cm_sp=Insite-_-noResults_pvp%20k90-_-noResults9-1You can probably find even cheaper.