Forum Replies Created

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  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 4:39 pm in reply to: Will surfactant homogenize with Hyaluronic Acid?

    The ultimate answer to your question is as @JonahRay says, make it and see. The %’s you said seem reasonable enough.

    But in general, both HA and Sodium Cocoyl Glycinate are water soluble so unless you are adding concentrations above the solubility limit or you are forming an insoluble salt, there shouldn’t be a problem.

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 2:31 pm in reply to: Is it necessary for heat phase

    On a large scale production level, it is often helpful to heat formulas a little bit because it can reduce viscosity and make the filling process quicker. 

    But heating is really only needed for melting ingredients that need it and for creating emulsions if that’s the kind of formula you are making. Cosmetics are not pasteurized. 

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 2:15 pm in reply to: Will surfactant homogenize with Hyaluronic Acid?

    I’m not sure you are using the term “homogenize” correctly.  Can you explain more what you mean?

    Hyaluronic Acid is water soluble so your question doesn’t exactly make sense.

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 12:50 pm in reply to: anti hair loss shampoo

    @kot - they lost me with “open-label” study.  Any information gleaned from the study is horribly biased and can be ignored.

    Why not do a blinded study to remove bias?  Neither Caffeine nor Minoxidil have detectable affects on the aesthetics of the formula. 

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 12:45 pm in reply to: PET results

    What is the “contaminated sample”?

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 12:43 pm in reply to: Hydrotopes

    @Aanchal - Your questions are not clear enough so that is probably why you are not getting any responses. Can you explain a bit more what you want to know?

    1. What type of formulas are you talking about? If you’re using surfactants, a hydrotrope is not necessarily needed. But you can use one if you want. Your question just isn’t specific enough.

    2. They can affect viscosity. It depends on the formula. When to add them? It depends on the formula. For what purpose are you adding the hydrotope and to what formula?

    Specific questions will get better answers than vague questions.

  • OldPerry

    Professional Chemist / Formulator
    September 17, 2019 at 12:28 pm in reply to: gluadin

    I don’t think it will have a measurable effect on hair. But it may have a psychological effect.

  • OldPerry

    Professional Chemist / Formulator
    September 15, 2019 at 11:13 pm in reply to: Bakuchiol vs Bakuchi Oil

    I don’t think they are lying. I think their studies are weak and not compelling. I think they do research to support what they want to believe and ignore data that doesn’t support it.  

    They are not trying to find the truth. They are trying to prove their point.

  • OldPerry

    Professional Chemist / Formulator
    September 14, 2019 at 5:51 pm in reply to: Bakuchiol vs Bakuchi Oil

    @Sibech - thanks for the clarification. I still think for formulating, the oil will give you the same benefits you can expect from the bakuchiol compound (which is probably no noticeable benefit)

  • OldPerry

    Professional Chemist / Formulator
    September 14, 2019 at 2:34 pm in reply to: Bakuchiol vs Bakuchi Oil

    Bakuchi oil is extracted from the plant seeds I believe. Although it could just be a little from the plant and diluted in some carrier oil. Bakuchiol is a name for the extract. 

    Sure, you could use bakuchi oil. 

  • OldPerry

    Professional Chemist / Formulator
    September 12, 2019 at 12:40 pm in reply to: gluadin

    Gluadin is Hydrolyzed Vegetable Protein. BASF produces it. Supposed to be good for hair. But the reality is that hydrolyzed proteins on hair are pretty much all the same. Yawn…

  • OldPerry

    Professional Chemist / Formulator
    September 12, 2019 at 12:52 am in reply to: essential oils: citrus limon peel oil, citrus grapefruit peel oil and orange peel oil

    The claim “oil free” can mean whatever the marketer wants it to mean. Usually, they mean “mineral oil free”. It’s just a marketing claim which doesn’t mean much in terms of science.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 11:47 pm in reply to: Use 1 formula for multiple uses

    Interesting. But in addition to the unnatural heating, saponification is a synthetic reaction.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 7:22 pm in reply to: Any proven beauty or health benefits of applying vegetable oils on the skin, besides reducing TEWL?

    No.

    Studies like these always seem to take shortcuts to get results that prove a hypothesis the authors want to prove.  Or they prove something that isn’t of commercial interest.

    For example, when testing to see if a natural oil will reduce TEWL they compare it to no treatment. They should be comparing it to mineral oil and petrolatum.

    Or when they do a study to demonstrate it’s anti-inflammatory effect, they do it directly on skin cell cultures instead of testing it as a topical treatment.

    Or they do small, non-blinded studies which aren’t replicated & could easily be the result of chance.

    I think it would be great if plant oils were superior to petrolatum or mineral oil. Where’s the evidence?

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 7:11 pm in reply to: Stability testing

    Agreed - It’s not an exact science but certainly 45C for 3 months will not get you to a 2 year shelf life.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 7:07 pm in reply to: labeling ingredients on my product

    Being “natural” and “safe” are two different things. Many “natural” things are not safe and shouldn’t be put on people’s skin.  

    “Safe” things are ingredients that have been safety tested and been proven to be safe. Both synthetic and natural things have to be tested for safety before being put into cosmetic products.

    Creating products without preservatives is not safe.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 7:01 pm in reply to: Use 1 formula for multiple uses

    Consumers want products that work. They might want a natural story to go along with it but if the products don’t work, they won’t buy it again.

    There are no truly natural cosmetic products. There isn’t a shampoo bush or a lipstick tree. Only through man-made, synthetic processing can products be made.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 4:29 pm in reply to: labeling ingredients on my product

    Yes, you should label those preservatives.

    The purpose of an ingredient list is to let consumers know what chemicals they will be exposed to. If you know there is benzyl alcohol and potassium benzoate in your formula, you have to tell consumers.  And Benzyl Alcohol is a known allergen so it’s even more important.

  • OldPerry

    Professional Chemist / Formulator
    September 11, 2019 at 1:32 pm in reply to: clear serum with suspension

    The cellulose gum probably isn’t needed if you’re using Carbomer.  But yes, it can be used to suspend beads.

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 3:26 pm in reply to: Economic Body Wash

    Yes, you need a preservative. To improve foam you’ll need to experiment with different ratios of SLES / CAPB.  You might also consider adding SLS.

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 1:46 pm in reply to: Economic Body Wash

    First, you need a preservative.  DMDM Hydantoin would work.

    But as far as “improvement” goes, what characteristics do you want to improve?

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 1:45 pm in reply to: Use 1 formula for multiple uses

    It depends on the color, but colors typically are compatible across formulas.  So, no you don’t usually have to change the formula.

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 1:44 pm in reply to: Similar looking competitor designs - Do you have any protection from copycats?

    Yeah, a lawyer is pretty much the only protection against this.

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 1:43 pm in reply to: Natural Fragrances added to formula

    That would depend on how you want the final product to be.  If you want to tell the consumer exactly how much fragrance they should add, then you’ll need a chemists to help you figure out what that will be.  But if you don’t care exactly how much the consumer adds and you don’t care about whether the product gets cloudy, then I don’t think it matters.

  • OldPerry

    Professional Chemist / Formulator
    September 10, 2019 at 1:41 pm in reply to: Use 1 formula for multiple uses

    There are certainly companies who do this.  

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