Paprik
Forum Replies Created
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Lamesoft PO 65 (it can cause instability to the product), … ethoxylated lipids (PEG-30 glyceryl cocoate), etc …
Do a google search, plenty will come up
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A note - if I understand it correctly you are solubilising preservatives?
I would say this is not great, use more “water-loving” one, do not solubilise it. It needs to be available for the whole products, not being “trapped in the micelles”. -
Both ingredients are doing basically the same so I would stick to one and test it out. Check regulatory limits (usually they have a special one for leave-on products) and go with it. Below are limits from CosIng (Europe).
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You can add a small amount of glycerin to prevent from “drying of the product.”
If you add small amount it should not effect the foam. If you add propylene glycol it will lower the viscosity of your product.If you’re talking about about “drying the skin”, use some superfatting agent or similar.
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Yeah, good point @PhilGeis. I should have mention to be careful to keep the preservative in its functional pH.
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If I understand your question correctly you are asking how to increase final pH in your product? (After adding Geogard ECT the pH dropped?)
If so, yes, you can use NaOH (30% solution for example) or other alkaline pH buffer.
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I wish there was that simple answer. Every oil is different and needs a bit different amount of solubiliser. I would start at ration 1:1 and try it out .. into pure water. If it gets cloudy, increase the ration 2:1 (solubiliser : oil). You can go up to 10:1 sometimes.
PS. You can also stick to Polysorbate 20 in my opinion
PSS. What is the purpose of the oil in your formula?
Happy formulating
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You can use something like Guar Hydroxypropyl Trimoniumchloride or a Polyquaternium (-7 for example).
This will help condition your hair and won’t cause stability issues in presence of anionic surfactant. -
You can use any surfactant (preferably anionic, with amphoteric and non-ionic) to create a liquid handsoap. The choice is yours. And it will be even milder as the pH will be more skin friendly.
You can you SCI, however it is a bit tricky to work with. It is better in “bar” formulas.
Hope this helps?
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Euxyl PE9010 is stable up to 120°C. Which you won’t achieve if you’re making an emulsion (or any other standard product). So it is safe to use it in water phase and heat it up.
In my opinion, it is almost recommended to incorporate this kind of preservative as soon as possible to get the best action. -
Yeah, I was surprised too. 7% for 4% oil phase. Cray cray
However … have you tried working with Carbomer? 940/980?
If I want something creamy, but also for it to have the gel properties I include it.
It thickens perfectly and on application it kind of breaks down. And it’s very light.Also, evaluate your samples the next day. For some emulsifiers it takes even couple of days to reach their full viscosity.
Do not heat hyaluronic acid, as for the extract check with your supplier (but I would say do not heat either), propanediol is ok to be heated. Can be added into water phase. [Usually used to slurry a gum if being used]
PS. I would take off some water from phase A and let hydrate the HA there - separately. Then I would add that below 40°C in cool down phase. Much easier to incorporate it this way. [You can see when the HA has fully hydrated before adding it into the rest of the formula]
Hope this helps, Happy formulating!
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@ngarayeva001, thanks!
… sorry, one more question, how much of a base do I need to add? (Let’s say I would use Sodium Hydroxide). Is there any ratio? -
Hi, we can only guess, but … what colour was the original? If it turned into this pink-ish, it could mean microbial contamination.
However, I do see problem in your ingredient list. You are using acetate form or tocopherol. This has no antioxidant properties for your lipids - and you are using a lot of plant oil lipids that are prone to rancidity.
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ketchito said:@Fekher You also need to add some base (sodium hydroxide for instance) to neutralize the Stearic acid, so it can work as an emulsifier.
I have never understood this.
So Stearic acid needs some base to be able to be emulsifier (saponification I reckon). But wouldn’t it need higher pH to be able to maintain its properties? Meaning, if you would take the pH back down, it should “separate”, shouldn’t it?
Could you please explain it to me good man? -
@Abdullah thank you mate!
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So you say you have made it, right?
The questions should come from you. Do you like it? Or do you feel like it should be more hydrating or you’re having stability issues? Or something else?Just looking at your formula, you are lacking humectant. Quite high lipid input. Have you freeze/thaw it [stability test]?
Try the cream and let us know if you would like to improve something or help with specific issue.
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@perry - Thank you! That is actually good to know.
Sorry, one more question. Did you “swell” it also before surfactants or at the end? I read some brochures about Methocel and they recommend to swell it before, so just double checking [It kinda does not makes sense, as it won’t swell with all available water from the formula, but hey, if they say it, right? ] Thanks a lot! -
Perry said:Yeah, we used HPMC in our shampoo until we removed it in a cost savings measure. HEC was in our conditioner formula. (VO5)
What have you replaced it with? If you don’t mind telling us?
Also, how did you process it? Have you thicken it prior to adding surfactants or at the end?
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HEC is terrible in surfactant systems. Never had a success with it - always separated. Hydroxypropyl Methylcellulose would suit better.
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Sarcosinates can thicken with presence of salt, but it’s not as easy as it is with sulfates or Taurates. You might still need some gum to thicken the system.
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I believe lauryl glucoside is even harder to thicken?
But yeah, better grade of Xanthan Gum would be great. . The standard (200 mesh I believe) is just disgusting
stringy and snotty … -
Yeah, even if you would build some viscosity with carbomer (which I doubt coz you’re using CAPB), once you add salt, it will all turn water thin.
You don’t need to use sulfates as your primary surfactant. There are milder surfactants on the market and there is possibility they will thicken with salt.
E.g. Taurides, Isethionates (although they are a bit more expensive if compared with sulfates). [Sarcosinates also, but they are trickier to thicken]Or use HPMC as Perry suggested.
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Hello @Dtdang, please see attached
You should get plenty of info from this brochure. Happy formulating. -
Hi @Pharma, on this note (sorry for a side question @Perry ), I discovered Minoxidil sulfate. Apparently it should be better than Minoxidil. What do you think about it? I’m using it at the moment, but I don’t feel like it’s doing much.