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Thanks! But looking for US based manufacturers for now

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Just Lotioncrafter’s Xanthan gum, clear type. Ultrapuregel aka Sclerotic gum worked adequately though. the formula doesn’t lather much, but it works really good.

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Just received a sample of Laponite XLG! What ballpark % would you recommend for a cleanser?

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Here’s a photo of the above xanthan gum sample. The clay also grayed significantly.

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I made the following samples, only citric acid changed pH, reducing it from 4 to 3.6. From left to right: 

#1 Citric Acid 1%
#2 Disodium EDTA 0.5%
#3 Sodium Metabisulfite 0.5% (Percentage taken from CC discussion)
#4 Glucono Delta Lactone (GDL) 1%
#5 All of the above
#6 Control

Only Sodium Metabisulfite is making a difference. As you can tell, I also have a consistency problem, the liquid is not homogenous, number #3:

Things to try:

1. Remove green tea powder from formula
2. Change the thickening agent (suggestions?)
3. Setup two hours of slow stirring to better blend the formula (Xanthan Gum, clear, takes a while to clarify).

Other ideas?

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I did my own search, I always do. But how did you find the personalformulator link? They did not show up when I initially searched for it on google using keywords: “Magnesium Aluminum Silicate” order OR cosmetics OR bulk OR buy.

I reformulated adding 0.2% xanthan gum (low percentage because I want to avoid any gumminess, not a huge fan of gums in general), after 24 hours at 42C I saw the same separation issue.

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I have HEC and HPMC thickeners btw, could any of those replace CMC? If there’s a good chance I’ll give it a try/

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Thanks, Magnesium Aluminum Silicate seems to make a lot of sense here, I’ll sample it from ulprospector, but does anyone know any regular online formulation stores that carry it?

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Thanks, I will test sodium metabisulfite as well against the others.

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Thanks, potentially very useful input, for starters I will try (a combination of):

Citric Acid

Disodium EDTA

Glucono Delta Lactone (GDL)

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bump

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@Makingskincare : Thanks! Is the choice of buffer important or only the end pH? How many g/100ml of SA is soluble at pH4? And do you have numbers for isopentadioal and betaine?

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Thanks, when you say help re sodium citrate and adjusting ph, do you have any (ballpark) numbers on that?

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Damn I forgot I had posted those tables before, no formula yet, just wondering about solubility and if there are any good direct replacements to PG.

Here’s the sorted data, can share spreadsheet if needed.

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I use Dimethicone at times. Does anyone know any better non-dirty alternatives for use in o/w emulsions?

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@bobzchemist “The next step up is a mini ball mill - one can be assembled from a high-quality rotary rock tumbler (Lortone) and then buying the media separately.”

So I’m thinking I’ll go for this, but need to know what kind of media is suitable (if anyone else knows please chime in)

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Nothing, it took 12 hours to thicken, possibly the carbomer gelling up further.

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So the lotion thickened to a good thickness overnight, not at all runny. Will add 2% cetyl alcohol to the next test batch. Will do acc. stability on both and see how they hold up. 

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Thanks a lot Robert, I had a feeling I was doingitwrong, but hard to find info on formulating these things.

My staff mixer does 15000 rpm, when used in a tightly fitting beaker I feel it will function like the Amazon jar blender you linked to.

Regarding milling, how do you use the Lortone as a ball mill - what extras do you need? (They range from $40 used to $100 new). How long do you generally mill Zno for?

And how about a ball mill attached to a drill like this one: $(KGrHqZ,!k4E6E5O3j1qBOiCw)hWdg~~60_12.JPG” style=”font-size: 10pt;”>

http://www.ebay.com/itm/New-Unique-Ball-Mill-for-Chemicals-or-other-powders-much-faster-than-other-type-/181396467769?pt=UK_BOI_Medical_Lab_Equipment_Lab_Supplies_ET&hash=item2a3c127039

Do you know anything about what particle sizes work well together? I have two different ones of Zinc, around 0.5 and 0.1 um averages.

Thanks milla. Will try to sample them.

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So I’ve used boron nitride as a titanium dioxide replacement in this particular “natural friendly” formula, any comment on the percentages and particle sizes?

It is a bit too thin, so I’ll increase the amount of beeswax. I’d also like to improve coverage + opacity. So
@millachemist any particular Nylon-12 source or BPD? If you have model names I can probably get samples

Blue pigment is interesting, never thought of that, but first improving coverage is more important.

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Does anyone have a basic formula to share that’s a decent starting point? The formula is for the lightest shade btw, for quite pale skin, hence the low amounts.

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Wow I did not know that. In any case, interesting formula and arguable THE best reviewed skin treatment product on Amazon. http://www.amazon.com/Medline-Remedy-Olivamine-Repair-Cream/dp/B004GC2LLE

The alphabetical order makes it harder to know what’s doing something though.What would a stripped down version look like? Emulsifier + thickener + preservative + the following

Ascorbic Acid
Ascorbyl Palmitate
Cholecalciferol - Vitamin D3
Citric Acid
Citrus Grandis Peel Oil
Glycerin
Glycine
Hydroxytyrosol - Olive derived antioxidant?
L Proline - Seems to be part of a amino acid ++ blend.
L Taurine
Methylsulfonylmethane
N Acetyl L Cysteine
Niacinamide 

Propylene Glycol 

Pyridoxine HCl 

Retinyl Palmitate 

Tocopherol 
Vanillin 
Water 

So it uses Olivamine, a prop. blend that the pinnacle olivamine supplement can tell us a little about:

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So hyralonic acid is just hype? I guess it can still be used for gelling at low pH where you don’t want to use xanthan gum and carbomer won’t work well..

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Thanks for reminding me about Niacinamide hydrolysis, had forgotten about that, the rate of hydrolysis at pH 4 is still low but better safe than sorry don’t want to trigger any flushing. http://onlinelibrary.wiley.com/doi/10.1002/jps.2600510710/abstract

Will try HMPC.

What humectants are considered good for cleansers? I read that glycerin stays on whereas sodium lactate/pca gets washed off. How about hyrwhatsitsname acid?

Anything you guys feel is missing from this formula? I see that most cleanser use propylene glycol, presumable as a humectant and penetration enhancer?