Perry44
Forum Replies Created
-
It might be possible but it also depends on what ingredients are in the formula.
-
The EO is the problem.
You have to understand how the molecules arrange themselves in the solution. The reason you are seeing haziness is because the particles that are dispersed throughout the system are larger than 100 nm.
So, you most likely don’t have enough surfactant (soap or polysorbate) to surround the oil particles to a tiny enough size to be transparent or you haven’t used a high enough mixing force to create tiny particles.
Polar molecules and non-polar molecules are not generally compatible. If you don’t have enough surfactant, you’ll get haze.
-
You could also try Hydroxypropyl Methylcellulose.
-
Perry44
AdministratorFebruary 6, 2024 at 2:59 pm in reply to: Does dimethcone/c12-15 Akyl Benzonate leave a stubborn film on face?Sunscreens are designed to stay on your skin and resist easy wash-off. That way you don’t immediately sweat them off and they continue to give you protection. If they were easier to remove, they wouldn’t work well as sunscreens.
The ingredients you described in sunscreen are not responsible for your breakouts. Things like silicones and glycols are not known to cause breakouts in people. But without more specific ingredient information, it is difficult to give you any good advice. Just keep trying to find one that works for you.
-
Perry44
AdministratorFebruary 6, 2024 at 11:23 am in reply to: Why is Avene Tolerance Hydra-10 Cream so effective?I think they are just setting themselves up for a lawsuit.
“100% natural ingredients”? In what world is Cetearyl Glucoside and Cetearyl Alcohol 100% natural? There is no plant or animal that produces those ingredients. Maybe “naturally derived” you could argue, but those aren’t natural.
Their labels also don’t conform to legal standards. The proper labeling of the first ingredient should WATER. Not AVENE WATER or AVENE THERMAL SPRING WATER. Just WATER.
So, if they can’t be bothered to properly label their products, I suspect they have preservatives in their formulas, they just decided not to put it on the label.
As far as replicating the product goes, sure that’s simple enough. But product performance is only a tiny piece of the puzzle when it comes to the success of a beauty product brand. No product on the market can perform significantly better than any other product (at least from a consumer standpoint). It is futile to try to compete in terms of performance.
Why is it effective? They have Glycerin, Shea Butter and emollients. That’s pretty much all the functional ingredients you need in a moisturizing cream.
-
Is this the bill you are talking about?
https://toxicfreefuture.org/washington-state/campaign-washington-ban-toxic-cosmetics/
Honestly, I don’t see how they are going to be able to police it.
-
Hello Susan - it must not work because I didn’t receive a message from you. Best is to send a message through the forum or the most direct way is to email me perry@chemistscorner.com
-
Perry44
AdministratorJanuary 28, 2024 at 7:35 pm in reply to: Is minimal chemical in sunscreen make it efficacious?Zinc oxide & titanium oxide (as a blend) can be the basis for sunscreen actives. But as @PhilGeis says, formulating them should focus on efficacy, not on minimalism. These are drugs in the US and it’s important to create functional products that have been tested for efficacy.
-
Perry44
AdministratorJanuary 28, 2024 at 7:53 am in reply to: Practical implications of critical micelle concentration for detergentsIt never really impacted my formulation of shampoos or body washes. The level of surfactant you use is a balance between performance and cost. CMC doesn’t have much to do with it. It’s interesting academically, but not practically
-
Perry44
AdministratorJanuary 26, 2024 at 7:14 am in reply to: About “Practical Cosmetic Formulating” courseHello Jamie - no, the course does not feature step-by-step making of products like the video you posted. The course is more about the science of cosmetics, the things you do as a cosmetic chemist in industry, and descriptions and breakdowns of various formulas. It was created with industry cosmetic chemists in mind. There are a couple videos showing step-by-step how a formula is made, but that isn’t the focus of the course.
-
Perry44
AdministratorJanuary 24, 2024 at 7:02 am in reply to: added salt in to hair shampoo formulationIt’s not usually done mostly because it leads to air getting trapped & it makes it harder to mix.
-
Perry44
AdministratorJanuary 19, 2024 at 8:13 am in reply to: Which site do you prefer for raw material discovery? ULP? Knowde? Special Chem?I use them all but ULProspector is first mostly because they have been around the longest & have a good number of suppliers listed. Specialchem has been around a long time too but they always seem less organized. The search function on special hem is just not very good. Knowde has the best search function. But they don’t seem to have the extensive catalog of ULProspector.
Honestly, I use them all until I find what I need.
-
Perry44
AdministratorJanuary 19, 2024 at 8:09 am in reply to: Using Hydrolyzed Protein as a Hair treatmentThe term “hydration” is a marketing term with multiple meanings. What do you specifically mean when you say provide hydration? Hydrolyzed proteins can work as humectants and attract water to the surface of hair. But Glycerin can do that much more efficiently and for a lower cost. So for that effect, companies use a high level of glycerin and a tiny drop of protein so they can make the claim. Again, the protein isn’t doing much.
A combination of a silicone and a cationic surfactant like BTMS should work best at taming frizz. You could also try a lower molecular weight ingredient like Cetrimonium Chloride.
-
Perry44
AdministratorJanuary 18, 2024 at 9:36 pm in reply to: Using Hydrolyzed Protein as a Hair treatmentThere is so much marketing stories in hair care that it’s hard to keep up. Hair masks are nothing more than thickened conditioners. They don’t actually do anything different. Protein has very little impact on hair and the notion of “protein overload” is just made up too. There is no scientific evidence that it is even a thing. I’m sure there is lots of anecdotal evidence but you can’t demonstrate it in the lab.
In your formula, you’ve got Dimethicone and Polyquaternium 7. With those two ingredients the protein will have no noticeable impact on hair.In truth, in the industry we add protein to hair care products because consumers believe that it does something and marketers like to talk about it. But if you try to demonstrate there is an effect, it’s just not there. At least, for rinse off products. Leave-in products can get a film formed but again, if you have dimethicone in there the protein film is irrelevant.
-
Yes if you want any helpful answers you’ll need to list your ingredients
-
At 4% surfactant and wax you are not going to get much foam. Try getting rid of the wax and increasing the surfactant level. You might try doubling the levels you have.
-
No problem! Thank you for participating. The forum was really set up for people just like you who have an interest in formulating, in chemistry, and a desire to know what is true versus looking to confirm what they already think is true.
Thank you also for the great work you do communicating what you learn on your various social media channels. Keep up the great work!
-
Yes, we have a list of potential suppliers. However, raw material availability depends on where you are located in the world.
-
Perry44
AdministratorDecember 21, 2023 at 8:18 am in reply to: Is filter sterilization common practice in cosmetics manufacturing?No. Cosmetics don’t require sterilization in manufacturing. Having said that, ingredients are tested to ensure they have low/no microbe counts & you shouldn’t use ingredients with obvious debris floating in it.
-
Sure, the fragrance can cause separation. Also, if you have high electrolyte levels that can break the carbomer structure and cause separation.
-
Perry44
AdministratorFebruary 12, 2024 at 1:32 pm in reply to: All natural serum and oil cleanser formulationThere is no need to delete the post. Good luck on your project!
-
Rosemary oil?
Shampoos are meant to clean hair. Putting oil on your hair is exactly the opposite of cleaning hair. -
Perry44
AdministratorFebruary 12, 2024 at 9:27 am in reply to: All natural serum and oil cleanser formulationDecyl glucoside was given the dubious award of “Allergen of the Year” in 2017. It is certainly not an allergy free ingredient!
Just one other important point - Decyl Glucoside is not “natural”. There are no plants or animals that naturally produce decyl glucoside. It is a synthetic molecule dreamed up by clever, human chemists. Some natural standards may recognize it as “natural” and indeed it may be derived from natural ingredients, but it, just like pretty much all cosmetics, is not “all natural”. It’s a synthetic chemical creation.
-
They just accept a lower foam production formula and accept a cleanser that doesn’t work as well as it should. People mostly can’t tell much difference.
But if a consumer wants a good waxing result, waxing should be put on after cleansing. -
You should be able to thicken the system with Sodium Chloride (salt).
As far as getting foam but also providing a wax film, that doesn’t really work. The more wax you put in a system, the less foam you are going to get. So, if you want more foam, you have to remove the wax (or significantly increase the detergent).
You can’t really create a good cleanser and have it deliver wax or a coating to the hair. Cleanser are meant to remove things, they are not meant to leave things behind. This is why adding wax is typically done after the car has been cleaned.