OldPerry
Forum Replies Created
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I did a quick search in Google Scholar and didn’t find anything related to alpha hydroxy creams causing headaches.
You would not get stearic acid into your system through a topical cream.
I would be skeptical of personal anecdotes but if those people had a problem using the cream they should be talking to a health professional.
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Unlikely there would be any noticeable difference.
What are you expecting the lavender essential oil to do?
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It’s homeopathic. Can’t you just take a jug of water and claim that at some point one of the water molecules was in contact with Arnica Montana and that makes it a homeopathic tincture?
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Allergic reactions are complicated. You should see a health professional for a diagnosis of exactly what you are allergic to.
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If you’re serious about formulating, get a pH meter. Strips are practically useless.
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That’s a new one to me. I thought homeopathic remedies were just water.
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It’s not true.
Remember anyone can write anything about anything on the Internet. That doesn’t make it true.
If you want to know whether ingredients cause cancer, see what science has to say, not unscientific, biased natural product sellers.
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Including PVP (1%) would help the hold.
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You can get the worksheet (with video instruction) here.
https://chemistscorner.com/cosmetic-formula-spreadsheet-template/ -
Here is the soap reaction that @Bobzchemist was talking about. This reaction can go to the right (to produce soap) or to the left (to produce a triglyceride). When you lower the pH you make the reaction go to the left. -
What is your definition of “natural”? For example, it’s highly unlikely that the Lye you use is natural. It’s synthetically produced.
I agree with @Microformulation. pH strips are not something a serious formulator would use. They are not accurate enough & don’t comply with GMP.
Mixing Sodium Hydroxide with Citric Acid will produce Sodium Citrate which will interfere with the saponification reaction. It’s not a good idea.
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Big companies take out patents all the time on technologies that have little practical application. There is a marketing benefit for being able to claim your formula is patented.
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Since they are not following proper labeling procedures they could have also just omitted listing the preservative.
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I think it’s the fearmongering groups that don’t want you asking those questions.
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The pH of cocamidopropyl betaine (5% solution) is 4.5 - 5.5 so your results aren’t surprising.
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Don’t use a hand mixer.
If you are going to make cosmetics you’ll need an overhead mixer like these http://www.caframolabsolutions.com/products/
Bubbles are caused by the mixer drawing air into the formula.
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Interesting. I don’t see any real world application of this data though. Do you? (Besides @Microformulation suggested marketing strategy)
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@Kara90 - It can work or it can not work. It really depends on a number of factors such as your manufacturing conditions, the raw materials you’re using, the microbes the batch is exposed to, and more.
The only way to know if something works is to try it.
In truth, you’d be better off using parabens since Phenoxyethanol can cause irritation for some consumers.
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That just means the product won’t be put in their Premium Beauty aisle.
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That depends on what chemicals are in the grapefruit product.
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@Jgy908 - How do you conduct a certificate of analysis on something like Aspen Bark Extract? What tests would be run to ensure that you are getting the ingredient you are buying? For example, how would you be able to distinguish between an Aspen Bark Extract and something like Aloe Extract?
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Regulations are based on politics not on ingredient safety data.
If these things were based on science, there would be harmonization across the world. Unfortunately, they are not.
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You might find this show we recorded on the subject interesting too.
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I fixed the link above.
Here it is again for anyone looking in the future.
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What @Bill_Toge said.
Plus, fear sells. If you can convince people that your product is more safe than your better funded, bigger competitors, you can sell some product. Fear marketing is lying in my view but not everyone sees it that way.