EVchem
Forum Replies Created
-
I’ve heard people using cupuacu butter as an alternative but I wouldn’t expect exact same performance
-
Yeah that’s a weird looking one.
The 20% shea could be something like Lipex SheaLiquid™ TR, the INCI is shea butter but its only liquid fractions.
I would think the 1% line would be before panthenol and fragrance? Maybe even before olive oil & glycerin
-
@Abdullah they have opposite charges and as a result will likely complex together. Reduced cleaning/conditioning and i don’t know about formula separation but precipitates could form. Instead of interacting with hair they will interact with each other. Polymers are a little different because they may still be able to deposit on hair (read up on conditioning shampoos or 2-in-1) while the surfactant is rinsed away.
-
David08848 said:Unfortunately, Specialty Bottle is only selling to current registered customers right now.
@David08848 What an odd way to prevent new business, why would they do this?
well we buy extracts from this site but the have packaging as well
https://mountainroseherbs.com/push-top-tins the 4 oz size website states should accommodate 3″ label -
Methyl Nicotinate will give ‘warm’ feeling but it is also a rubifacient (it will make your skin red). Personally my arm felt tingling and burning with 0.1% .
Glycerin only compositions will give a warming sensation as well, zeolites can provide slight warming.Vanillyl Butyl Ether is also sold as a warming agent, it hasn’t worked well for me in creams the feeling was lost.
-
W/o usually requires homogenizing so with just a stir plate I don’t think that route will work for you
-
Aloe Vera Liquid 15% is quite a bit and usually has its own electrolytes to complicate things.
If you’re going to post add 15% I’d recommend using some polymeric emulsifiers rather than traditional waxes. You could try anything from carbomer (though it’s in short supply rn), sepimax zen, sepiplus 400, aristoflex avc, etc. Personally I wouldn’t trust a gum for this situation. -
https://www.sks-bottle.com/340c/fin7.html
5562-05 a little shorter than you asked but close! https://www.specialtybottle.com/metal-tin-containers/deep-flat-slipcover/4oz-tnf4 also a little short
-
I think that 20% is on par/ slightly above what you’ll see in industry standard with extract concentration. Not to burst your bubble but these kind of extracts are basically useless. Plants have hundreds of compounds; you won’t get a consistent raw material even with the same supplier unless they are standardizing. Plus the compounds that are present are in at small amount and then the extract will be used at only a percent or two.
Take a look on this forum for other posts about extracts as plenty of people on here have better explained the issues.
-
You don’t want to buy Sodium Hydroxide? You would rather deal with chlorine gas? https://en.wikipedia.org/wiki/Sodium_hydroxide#Production
Why on earth can’t you buy it
-
potassium sorbate can only help protect your product when the pH is 5.5 or lower. You need to add citric acid or the like and check the pH of your final product. Also you probably want to do more like 0.2-0.3% potassium sorbate, and couple it with maybe sodium benzoate
-
MarkBroussard said:Why waste your time trying to start a fire by rubbing sticks together when you live in a world where lighters exist.
Amen, but many clients come convinced that because the sticks are natural they must be better than the dangerous synthetic lighters
-
@letsalcido From my understanding you are right. Each state has their own regulations additionally https://www.epa.gov/minimum-risk-pesticides/state-regulation-minimum-risk-pesticides
-
Can you list your formula as percent? It’s not clear exactly how much you are making. IPA is at 75% concentration w/w?
You don’t say what kind of carbopol-there are different grades with different levels of clarity and alcohol tolerance.Hand sanitizer made wrong is not effective and in these times it would be a shame to waste the alcohol.
https://www.cdc.gov/coronavirus/2019-ncov/hcp/hand-hygiene.html
https://www.fda.gov/media/136118/download
You’re better off just following the already released formulas for liquid sanitizers or using 75% IPA as is -
At this size if you’re planning to do retail sale you’ll want to get a dedicated space for yourself to at least open/weigh out containers. a pump would work if you switch the lid out for liquids. For powders a pour spout would probably be fine.
When you say contamination are you worried about microbes or just particulates like dust? Germs are everywhere, that’s why you have a robust preservative but obviously do what you can to minimize. to reliably keep out particulates it will be much easier if you have a set room to work in with positive pressure and clean surfaces
-
What exactly does a medical assistant at a spa do?
Working as some kind of lab tech or qc position will help but is more standard route. Most places appreciate having an R&D person who can reliably interface with clients and help sell so a spa position might work to your advantage there.Contract manufacturing stops for nothing, pandemic or not from my experience. Get on Linkedin if you aren’t already and look for formulation chemist positions to find companies would be my suggestion.
-
Well I’ve seen bits of this book https://www.amazon.com/Conditioning-Agents-Cosmetic-Science-Technology/dp/0824719212 and it looks helpful, not to mention the editor is a big deal around here
Plus it is of the same series that @chemicalmatt mentioned, though it is not exclusive to hair.
-
https://www.epa.gov/minimum-risk-pesticides
https://www.epa.gov/minimum-risk-pesticides/conditions-minimum-risk-pesticides
looked into this before, the epa website should clarify most of your questions -
It’s got to be related that we’ve recently had clients who sell on amazon getting push back from the site that any products claiming ‘lightening’ must have two test results from separate ISO accredited labs confirming no mercury.
All of our newer products never say lightening, only brightening or tone evening. Marketing will adjust. Once you’ve shown people lightening products I think it will be hard to take away without creating black market crop-up. I’d agree regulated products are better than outright bans, but there are still so many unregulated products that sneak through already so how do you effectively implement change?
-
promises said:My questions:
1. This recipe probably doesn’t call for a preservative, but is adding it a mistake?
2. Anything I could add to maybe thicken the oil? I’m not sure how runny it will be.
3. Anything I could add for a better absorption of the actives? Maybe some Jojoba oil (INCI: simmondsia chinensis seed oil)?
4. Does such my recipe require heating?
5. Is there anything wrong with my recipe/instructions?1. don’t see how adding a preservative here would be a problem
2. Wax is an option, or silica. Or you can just shake before use
3. Not sure if jojoba would help with the vitamin C delivery specifically.
4. no heat, unless you do want to add a wax or to better force ascorbyl palmitate in. In that case I’d heat carefully and add ascorbic on cooldown. Rosehip is prone to oxidation so I’d probably avoid that route. -
less powdered green tea, opaque packaging, antioxidants
-
Beakers we just spray and air dry and store upside down or on drying rack, this shouldn’t take a whole night.
We don’t sanitize packaging but we micro test after product has been filled and have had no major issues. Unless you are buying incredibly dirty bottles the preservatives in your products should be able to handle the packaging environment. -
Citation 2 mentions “ It has been shown that an ethanol concentration between 10.5% and 16%, and an glycerine concentration >10%; “.
What kind of water are you using (distilled, deionized, boiled)? Zinc can promote yeast growth but I’m no expert in that subject so I don’t know if your 1% is troublesome or not.
Ultimately we can all give opinions but you won’t know without challenge testing.
-
@promises , I think anhydrous will be a better route to go for now, though I can’t say whether you’ll see any miraculous effects. Rosehip oil is very popular (and has its own purported benefits); the tocopherol will help since rosehip is prone to oxidation. The vitamin C is not going to dissolve so just be aware that you’ll have to shake the container each time and it will feel like rubbing gritty oiled sand on your face. You could always buy powdered LAA for slightly less grit.
-
Even if you plan to use the extract at a couple percent, the preservatives are only in the extract at 1% tops themselves. So your final concentration of those preservatives will be negligible.
As for labeling, here’s what the FDA says about ‘incidental ingredients’
Definition:
Any processing aid added and removed or converted to a declared ingredient
or
Any ingredient of another ingredient or processing aid present at an insignificant level and having no technical or functional effectNeed not be declared
A substance added to a cosmetic as a component of a cosmetic ingredient and having no technical or functional effect in the finished cosmetic. Example: Preservative of a raw material added to a cosmetic as an ingredient at a concentration which reduces the preservative to a level at which it is no longer effective.