[chemicalmatt]

This material will be largely lecithin, similar to soy “foots”. Phosphatidyl choline and phosphatidyl serine mainly. I am curious as to how the brand can name or use that INCI, but when you are Estee I suppose you can do a lot of things other manufacturers can’t.

[chemicalmatt]

If it is FCC grade citric the answer is yes. How much? Depends upon your acid reflux tolerance.

[chemicalmatt]

If using standard TEA 85%, then use 1.4 : 1.0 carbomer, but since you asked what I really think then save yourself a lot of money and time by DELETING the TEA and Carbopol 940 altogether and switch to Rapidgel EZ1 from 3V Sigma. 

[chemicalmatt]

…or you may just disconnect from Evonik and use Monolaurin from Colonial Chemical (glyceryl laurate), which is doing all the heavy lifting there.

[chemicalmatt]

Outstanding idea there @Rimbaud16: good old DOSS, the HI&I formulator’s best friend for decades. Kudos to you for thinking outside the box. Makes one think of all those Gemini surfactants used in HI&I that personal care formulators continue to ignore. A bit heavier on the irritation index, but that is easily resolved in formulation.  

[chemicalmatt]

@Hanson25 : much easier, use Synthalen W600 (acrylates copolymer) at pH 5.5 - 6.5. Liquid drops right in and then throw in any sulfate-free surfactant you want in there, just go easy on the amphoteric. 

[chemicalmatt]

I’ll chime in with another (larger perhaps?) aspect of this data. The continuing inability of so many “softer” preservatives to suppress fungi & molds. So many tools to address bacteria and their phages, but fungi go on and on and on. One longs for parabens…or at least IPBC!  

[chemicalmatt]

You are describing AccessGEL LEDO (Access Ingr.) at 100%. 

[chemicalmatt]

This may sound weird but you might try rice starch as a bulking agent and whitening opacifier sub for TiO2. It is inexpensive, and absorbs oils so that may lead to further weirdness - or total success. 

[chemicalmatt]

@BigDreams Try the PG-4 Oleate, and should they offer PG-6 oleate, even better. That latter one matches up well with the PG olive oil ester. 

[chemicalmatt]

ghtc? galfusion? poly 7? cucumber glycerite? aloe extract?
This does  not  compute.

[chemicalmatt]

Start out at 1.00% and test the result. You will have difficulty hydrating more than 2.00% of PQ10 30M, so there is your upper limit. 

[chemicalmatt]

Negative. They are pearlizers that do little to deposit silicones from conditioning shampoo formulations. Dilution-deposition coacervate formulation assisted by sodium xylene sulfate as hydrotrope is the “classic” method there.

[chemicalmatt]

For the record, the only meaningful regulation that EPA exerts over cleaning products is when they apply to FIFRA or SaferChoice (DfE) compounding. Otherwise you can put all the phenoxyethanol you want in there. I assume you are formulating disinfectant then? That being the case I’ll echo Dr. Phil and state it as a solvent, which it in fact is.   

[chemicalmatt]

By “HMC” did you mean hydroxymethylcellulose? These D.I.Y. abbreviations drive me O.O.M.M.

[chemicalmatt]

That is the standard commercial concentration, determined many years ago by partial pressure equilibria calculations of volatiles. Same holds true with standard ammonia concentration (26Be if I recall?), etc., etc. 

[chemicalmatt]

Not at all objectionable. Just do the dilution algebra and q.s. with IPA and water to avoid ppt. and you should be OK. IPA certainly will aid the antiseptic cause too, right?

[chemicalmatt]

This topic has been under discussion for decades now, but my opinion  - and the consensus - is that 350cst dimethicone will be the most versatile used for skin care applications, with 100cst the second runner-up. Nothing heavier or lighter such as DM6. Also my opinion here only: nothing matches the attributes of dimethicones. The light esters you note, and CCC is a good one, have a different sensorial outcome and most all of the commercial “silicone substitute” light esters are analogs for cyclomethicone, the least practical of all silicone emollients. D5 cyclics in antiperspirants and hair-care de-frizzers: another story altogether.  Indispensable there.

[chemicalmatt]

You might give the polyglyceryl esters a try, such as Emulsiderm PGEO. Most surfactants will agglomerate the powders depending on what you have inthere.

[chemicalmatt]

Yeesh! This sounds like a mess! Why not delete the  water, surfactants, PVP, phenoxytol, glycerin, clays and just build this with waxes, oils and butters? Keep come of the polysorbate-60 in there for easier rinse out. Otherwise return to GO.

[chemicalmatt]

None whatsoever. Carry on with your plan and save some coin. Look at [equipnet.com] or enroll yourself into the [bidspotter.com] site and keep an eye out for incubators on auction. They are a common item at pharma auctions.  

[chemicalmatt]

@Cosmetic_Chemist you are defining an attribute but not a variable. Does this body wash have a really high viscosity? Sounds like it to me. That could well be the “stringy” thing itself.  

[chemicalmatt]

@Anasmerixindia58 you are in need of a fixative my friend. Triethyl citrate should be easy to find in the subcontinent and inexpensive. 

[chemicalmatt]

I just saw that press release on LinkdIn and yes: kudos to Perry Romanowski for his contributions to our craft and industry. He gave us all this forum, right?

[chemicalmatt]

Yup, @Graillotion nailed it again: you are experiencing a Schiff Base reaction, happens with azo and azide groups interacting with aldehydes, ketones. The brighter the yellow color the greater the possibility.  Consider this as a palliative: if not a Schiff Base then you may have a nitrosamine forming. One way trip to Trouble Town there!