Abdullah
Forum Replies Created
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I suggest 0.5% citric+ 0.05% GLDA for combination of these two. It will give a good buffer to at your desired pH.
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Too much vitamin e and fragrance.
I would use 50x less of each one.
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As ketchito said, consider GMS, cetyl, behenyl, and cetearyl alcohol as structuring agents, no matter what their HLB is. You can use one of them or all of them together. I suggest behenyl+GMS to you.
Sodium Stearoyl Glutamate and Cetearyl Glucoside are emulsifiers no matter what their HLB is. (Their HLB would differ from manufacturer to manufacturer and from batch to batch. It doesn’t matter).
Important is the ratio of emulsifieror emulsifiers to structuring agent or structuring agents. It is better to be 1:4-1:6 emulsifiers: structuring agents ratio in mole.
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This would not need high shear mixing so any amount is enough.
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Ingredients like SLS and parabens that have bad reputation are the best ingredients.
They have replaced SLS with SCI and parabens with other preservatives to look better in ingredients list. you can see their reviews, everyone says the previous formula with SLS and parabens was more gentle, better tolerated and much better than new formula.
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What ketchito said+ Ethyhexylglycerin, 1,2-Hexanediol, caprylyl Glycol & Lavender EO all reduce viscosity
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You can use some phenoxy ethanol or phenethyl alcohol
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Is this a cleansing product?
What is the problem with pH 6?
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This one doesn’t how if high pH is bad for hair or how much bad it is.
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I have made this shampoo and all of our employees have tested it as shampoo and face wash.
As shampoo they liked the conditioning effect the most. Only one women said foam is a bit less which is obviously from low surfactants. No other complains.
As a phase wash aso only one of 10 people which has very high acne complained about it irritating her phase. Others saw no difference with low pH phase wash.
As guar and amodimethicone are still cationic at pH 10 and hair is more negativity charged at pH 10, why deposition of these cationic ingredients decrease instead of increase?
Chatgpt also says deposition would be higher at pH 10 compared to pH 6 hahah. but i know i shouldn’t believe chatgpt.
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I don’t have full access to the document. Was it about high pH leave on product or rinse off product like shampoo?
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Thanks.
I was using these preservatives at my other product at pH 6.
I thought adding them to this high pH shampoo will do a quick kill of existing bugs that are introduced during production and before the preservatives loss there effectiveness. what do you think about this idea?
Also formaline is 0.02%. will be effective alone without CMI MI at that small amount?
For high pH shampoo, it would be in contact with hair for ~1 minute and then rinsed with water which has pH ~7. So in that 1 minute, would it matter if it is pH 4, 6 or 10?
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@Pharma if a woman is taking isotretinoin 20mg orally, after discontinuation, how much time should she wait before getting pregnant to not get any side effects from that isotretinoin?
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Thanks
I don’t have any problem with EDTA but is it effective at pH 4?
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Sodium hydroxide is readily available and cheaper. Why should i use tea? <div>
pH is 4 so EDTA wouldn’t work. Im i correct?
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@ketchito yes. Actual product is clear. But after 100x dilution in hard water they all became turbid.
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@ketchito i made two batches. One with 0.5% STPP and one without STPP. Both were clear but after 100x dilution with hard water became cloudy.
Then i added 0.01% citric acid to this dilution and they became clear.
What can be happening?
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@ketchito i made a sample without sodium hydroxide.
Product was clear. pH was 10. After 100x dilution pH was 6 and precipitation happened again.
For buffer, is citric acid+sodium hydroxide an good buffer?
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Thanks. I will make a sample without sodium hydroxide and see what happens.
I was adding sodium hydroxide to keep the pH of wash water @~10 when it is diluted during use. Without sodium hydroxide pH goes down to 6-7 when diluted during use.
An expert here said STPP works best at higher pH and is almost useless at pH 6-7. What is your opinion on this?
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No it is not for acne. It is to get all it’s benefits as much as possible
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Thanks for the link.
Of course these enhances penetration of niacinamide. But do we need to penetrate it deep in the skin to do it’s job or superficial is enough?
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Those HLB doesn’t matter. It can have different HLB from same company but different batches.
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Hi <div>
Some questions if you can answer.
1. Was that free shipping for one consumer retail purchase or bulk?
2. What happened to private labels globally?
3. What happened to your local customers?
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