OldPerry
Forum Replies Created
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@JonahRay - yes, suppliers also push these kinds of misconceptions. They are motivated to upsell more expensive surfactants.
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@ngarayeva001 - That sub is extremely frustrating at times. It is decidedly not scientific despite the name. However, I do find it helpful to keep an eye on what some consumers believe and even more interesting to understand why they believe it.
Of course, I’m similarly interested in what people believe on our forum and why. It’s just that here people don’t take as much offense when asking them to clarify what they meant or support their claims.
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@Ronit - what do you mean by “effective serum”? What claims are you making about it? How do you determine that the serum is effective?
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@chemicalmatt - I remember once we were looking for a new vitamin to add to Tresemme conditioner. I added cyanocobalamin at 0.01% as was standard for that line and put the formula in our system before I actually made a prototype. It was fine in the lab but in production it turned a little pink. I had to drop the level to 0.001% to get back to my white color.
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Yes, mica is generally approved for use in cosmetics.
https://www.fda.gov/industry/color-additive-inventories/color-additive-status-listNo, I don’t think mixing mica with a nonlip safe ingredient is approved. Companies that are doing that are taking a regulatory risk.
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If you have 0.25% fragrance, you should try premixing it with 1% polysorbate 20 or 80 or some nonionic surfactant like that before adding to the main batch.
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@simflyer905 - that formula is as good a place to start as any. I wouldn’t recommend skipping the preservative unless you don’t mind throwing your product out every so often. There are alternative preservatives. (e.g. https://www.makingcosmetics.com/Broad-Spectrum-Preservatives_c_136.html” bis_size=”{"x"
,"y":79,"w":431,"h":37,"abs_x":384,"abs_y":3000}”>https://www.makingcosmetics.com/Broad-Spectrum-Preservatives_c_136.html) -
Why don’t you just make a big batch (say enough to fill 1500 units to ensure you have enough to fill), add the appropriate amount of CBD, then fill each unit? There is an assumption when you properly mix an ingredient that it is evenly distributed throughout the batch.
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1. Yes. Because they are oils and you’re trying to mix oils with water without enough surfactant to hold them together. But whether that happens or not depends on your formula, the ingredients and how you put it together.
2. Probably not but it depends on what’s in your formula.
But no one can be of much help unless you share the list of ingredients in your formula. It would help even more if you provide the percentages too.
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I don’t know the answers to your questions and it’s unlikely that anyone here will. Vitamin B12 isn’t an ingredient commonly put in skin products.
I didn’t find any pH range information in this study which is the full paper of the study you are probably reading about. https://www.dropbox.com/s/waf7hg5c4br2rid/vitaminb12-study.pdf?dl=0
But you should clarify some of your questions.
1. ·Does anyone know how stable OH-cobalamine is in an emulsion?
What do you mean when you say “stable”? What measurement would be taken to indicate to you that the ingredient is stable? If you are suggesting that “stable” means that “it still works over time” this answer is unknown. That would be a research study that hasn’t been done.2. ·What pH range is necessary for it to remain stable?
see question 1.3. ·Is a buffer recommended?I don’t know. I don’t think anyone knows.4. ·Important interactions (e.g. preservatives)?I know cyanocobalabin can make a product turn pink at low levels.5. ·Recommended concentration?The study used 0.07% and said research suggested higher levels had no greater effect. That’s a place to start. -
@Aziz - you will probably have a better error factor with the TEA meaning you can miss adding the right amount and not have as significant an impact on pH. But NaOH is usually the less expensive option and also less likely to have some other reaction with ingredients in your formula. In sum, it depends on what’s important to you.
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@bellbottom - You should do all your measurements in mass (aka weigh them on a scale). Using volume to measure liquid is not a good idea when formulating.
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If you want to take a scientific, minimalist approach to formulating, you start with the functional ingredient and build from there. That is the decyl glucoside. Don’t use aloe vera extract when deionized water will work. Aloe extract provides no benefit. Similarly, don’t add glycerine since it just gets washed away. And add a preservative.
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The primary benefit that oils have in surfactant systems is that it allows marketers to call it out on the label and in advertising. It is not providing any noticeable benefit to the product user.
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Sodium hydroxide is a pH adjuster
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Generally, when a question can be answered by doing a quick Google search most of the people here won’t respond.
Here is your answer…
https://cosmeticsinfo.org/ingredient/hydrogen-peroxide-0“In the European Union, Hydrogen Peroxide may be used in hair care, skin care, nail harding, and oral hygiene products at maximum concentrations of 12%, 4%, 2% and 0.1%, respectively (See Annex III). Hair care, skin care and nail hardening products containing Hydrogen Peroxide must be labeled: “Contains Hydrogen Peroxide. Avoid contact with eyes. Rinse immediately if product comes in contact with them.” Hair products containing Hydrogen Peroxide must recommend that gloves be worn when the product is used.”
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Surfactants remove oils through a process of emulsification. Oils are lifted from the surface, surrounded by surfactants, suspended in the water solution where they can be rinsed away. Putting an oil in your surfactant just makes your surfactant less effective at emulsifying oils on the surface.
Oil cleansing only works if you are also doing something to physically remove the oil like using an oil absorbent cloth or towel. The oil you put on the surface combines with the oil already on the surface. Theoretically, this makes an oil solution that is easier to wipe off the surface. It doesn’t always work with all oils & it may not get the surface completely oil free.
But you can’t combine oil & surfactant to get something that works better.
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@Dtdang - I do not think Total Beauty is a reliable source for scientific information. The people writing their stories simply parrot back what beauty brand marketers tell them.
Here is a proper review article of skin lightening actives.
https://www.dropbox.com/s/gqc35itjy4emdg5/skin-lightening-review.pdf?dl=0I personally wouldn’t put much faith in Licorice Root extract doing anything. You have no idea what is in the licorice root extract and it could be little more than brown coloring put in propylene glycol. The same is true for Green Tea extracts.
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Where are you located?
You can try http://orchidia.com/ or https://carrubba.com/
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9 & 10 - this is a blend of preservatives called Kathon CG
You can figure out how much water is in the formula by weighing a sample, then putting that in an oven (>250 degrees) for a couple hours and weighing it again when the water evaporates off.
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Your questions are not specific enough for me to give an answer.
How to choose ingredients? Find the claim you want to make, figure out how you will measure whether that claim is proven, then pick ingredients that can help you achieve that claim.
For example, if you want a product that will be firming or used to treat wrinkles, figure out how you will validate that the product does that. Normally, this is done with a before and after questionnaire with consumers using your product and either no treatment (weak) or a placebo (a bit better).
In truth, cosmetics are not allowed to change skin but only allowed to change the appearance of skin. So, getting rid of dark spots is not a thing that cosmetics are allowed to do. That would make it a drug. Making dark spots not as noticeable is something cosmetics are allowed to do. You can use makeup for that.
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If this is a product you intend to sell check the VOC regulations in your market. If it is in the US, the VOC regulations would likely make it illegal to sell that product in California. This (along with flammability issues) is why you don’t see alcohol used as a preservative more frequently.
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Where did you get it from? That doesn’t sound like you have phenoxyethanol. No, I would not use it. It may or may not be dangerous but it is unlikely that it still works.
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To get good advice you’ll need to list all of your ingredients.
Also, are you creating this product for sale or for your own use? It is important to know this because using Hibiscus Extract and beet juice to color your product is ILLEGAL in cosmetics. If you want pink stick to approved FD&C colorants. If it is not on this list, it is illegal.
https://www.fda.gov/cosmetics/cosmetic-ingredient-names/color-additives-permitted-use-cosmeticsWithout knowing your ingredients it is impossible to tell you what causes the itchiness. But most likely it is not the lamesoft but probably one of your surfactants or natural extracts.
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Home food processor is a problem. It draws too much air into the formula.