belassi
Forum Replies Created
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I calculated the formula in Harry’s and it seems to be 0% superfat. The formula is not bad but the 10% glycerin is too high. I added 3% avocado oil and 2% Silsense DW15. It is not bad but not as good as Gillette.
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@sven: Yes. I went through a phase where I was hoping to suspend (eg mica) insoluble items in shampoo. Apart from problems with instability, and price (eg Aqua SF1) there is the simple fact that you can’t get the trapped bubbles out of it without some rather expensive vacuum mixing equipment.
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Can you share your experience with carbopol and surfactants?
I will:
:'( :'( :'( :'( -
There is really no point in talking about this; one sense cannot replace another. Just make it, and find out for yourself. Your question is impossibly simple; the sensorials of any product depend not only on simple ratios of lipids to other ingredients, but to a large degree on the nature of the emollients. As an example, imagine choosing two esters, one is at the light end of the scale and the other, at the heavy end. One is lighter than water and a cream made with it has very fast absorption and a dry powder skin feel. The other is thick and waxy and a cream made with it has very slow absorption and a cushioned, slippery skin feel.
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Sodium benzoate 0.3% and pH <5 and use a chelator, EG: EDTA.
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No. They are not the same at all. One is an emulsifier, the other requires an emulsifier.
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silicone ester, sorbitol.
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For instance let’s say I choose to make a shampoo with Stepan APB (replaced Plantaren APB recently) and CAPB. If I have say 10% CAPB and 15% APB where in the LOI does the CAPB go? And then I decide to add some Lamesoft PO65 of which two ingredients are similar/identical to two in the APB. And so on.
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What if you use a preblend and the manufacturer won’t tell you the composition since it’s a trade secret, you only know the total active % (sum of all ingredients in the preblend)?
I am in this position, what I do is simply list the ingredients in the order supplied by the manufacturer without bothering to use ‘and’. You run the risk of guesstimating the correct order on the LOI because you can only guess at the relative percentages in the blend. -
No, it’s mainly KOH, it’s the recipe that David noted from Harry’s Cosmeticology 7th Ed. very recently. It’s just mainly stearic acid, and some coconut and palm kernel oil. I didn’t have palm kernel oil so I subbed palm oil and adjusted the quantity accordingly.
It was too drying — from my calcs it looks as if the formula is for 0% superfat.
So I added 3% avocado oil and 2% Silsense DW-15 (a silicone ester) and it’s now pretty good.
This is just for fun you understand, I have no intention of marketing a shaving cream.
If you are particularly interested in the final formula I’ll post it for you. -
I added 3% avocado oil and 2% Silsense DW-15 and it came out really well. Did an half and half test against Gillette. Pretty much as good. A bit thicker.
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It’s KOH and NaOH saponifying stearic acid and coconut and palm oil. 10 percent glycerin added.
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Step 1: Do you even have a brand? Tell us your registered brand name, please.
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You should create a new post listing your formula.
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Once you are comfortable with lotions, move to surfactants, because they are much more tricky.
— Seconded. -
Sodium benzoate at 0.4% and pH <5 has been totally reliable for me.
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One thing I discovered early - the hard way - is that there are two classes of fragrance. For personal use, and for industrial use. I went to a local factor and bought some fragrances and one of them (I found out later) was supposed to be for industrial floor cleaning products.
The limitation you quoted of 0.4% makes me think that it’s likely your fragrance is an industrial one. -
Methylchloroisothiazolinone (and) Methylisothiazolinone (Salicat MM)
— Stand by for horrendous allergic responses! I hope your product insurance is paid up. -
Exactly. Remember when I discovered that study on hair loss in rats, and made an experimental project to see if I could develop a new depilatory product. It didn’t work. If anything it promoted hair growth. Rats are not people.
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Frankly I think you are trying to do too much with one product. You would be better off designing two different products. “First use package A, then use package B”. You cannot mix anionics with cationics except under very limited circumstances.
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I don’t see that it would be possible, you’re basically making a bath bomb.
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It sounds as if you are combining an organic acid with a cationic emulsifier? Is that so?
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I have this in stock and have tried it.
“Multi-dimensional softness” - ha! Marketing speak.
It’s nice … but so are many, many, other compounds.
Try it for yourself. -
See my thread on this topic.