Forum Replies Created

Page 67 of 184
  • OldPerry

    Professional Chemist / Formulator
    March 22, 2020 at 10:30 pm in reply to: What do you think of essential oils?

    It all comes down to exactly the wording of their claims.  Plus, supplements in the US are practically unregulated since the passage of the DSHEA back in 1994 

  • OldPerry

    Professional Chemist / Formulator
    March 22, 2020 at 9:38 pm in reply to: What do you think of essential oils?

    Certainly some EO’s work well as fragrance ingredients. For other purposes, the evidence is much less convincing.  Although I suppose it depends on the specific claim about the specific oil.

  • OldPerry

    Professional Chemist / Formulator
    March 22, 2020 at 1:25 pm in reply to: Bottle closure and oxidation…..

    While it’s probably not illegal to call your product a “mosquito lotion” in my opinion, it is certainly misleading to do so. A consumer is likely to assume that something called a mosquito lotion is going to be a mosquito repellant. If you do market it as that you should put a disclaimer **Product is not intended for use as a mosquito repellant** or something like that.

  • OldPerry

    Professional Chemist / Formulator
    March 21, 2020 at 8:07 pm in reply to: Disperse in glycol/glycerin

    Yes.

  • OldPerry

    Professional Chemist / Formulator
    March 20, 2020 at 9:27 pm in reply to: Urgent Help Required

    if you are going to attempt to make hand sanitizer, please follow the guidelines by the WHO.
    https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf?ua=1

    HEC, Vitamin E and Aloe Vera Gel should not be used as they have not been validated in hand sanitizers and could impede the effectiveness.

  • OldPerry

    Professional Chemist / Formulator
    March 20, 2020 at 5:51 pm in reply to: Sanitiser

    If you are going to attempt to make hand sanitizer, please follow the guidelines by the WHO.
    https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf?ua=1

    Stay safe everyone.

  • OldPerry

    Professional Chemist / Formulator
    March 20, 2020 at 5:00 pm in reply to: Why vitamin c make my gel liquid?

    If you want useful advice you’ll need to post your entire formula (or at least all the ingredients) along with how you are making the product. 

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 11:57 pm in reply to: Soap is better for Corona virus?

    @Fekher - Please see the guidelines published by the WHO.
    https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf?ua=1

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 9:03 pm in reply to: desinfector with only 20% alcohol!!

    @Pharma - the other thing that soap does is get the little buggers off your hands. Those hand sanitizer gels and sprays just leave microbial debris on your skin. And if they only kill 99%, there’s still 1% that can infect you. It doesn’t take much to become infected.

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 7:48 pm in reply to: desinfector with only 20% alcohol!!

    What @Belassi said.  Also, how do you know they only use 20%?

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 5:47 pm in reply to: desinfector with only 20% alcohol!!

    Agreed. Don’t do this. It won’t work.

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 5:47 pm in reply to: Black small little balls

    Use the product? I don’t know. You should probably check it for microbial contamination before you use it. Ideally, you would just throw it away but if you don’t want to, at least check for contamination.

  • OldPerry

    Professional Chemist / Formulator
    March 19, 2020 at 2:37 pm in reply to: Hand Sanitizer Spray

    TEA is typically added to neutralize the Carbomer gelling agent. Since you don’t have that in your formula, I don’t think you need it. It also is causing the pH to increase.

  • OldPerry

    Professional Chemist / Formulator
    March 18, 2020 at 10:07 pm in reply to: hair serum

    The problem is that you have no idea what effect any of the ingredients are having on the final formula. And you don’t know what characteristic you want to change. So, there is no way to tell you how much to add. 

    Fragrances have an odor so you can probably tell exactly what effect they have. Adding more or taking some away will change the formula in a meaningful way. So, for your fragrant ingredients, you can experiment.

    Vitamin A & Vitamin E are unlikely to have any noticeable difference in your formula. You can test this yourself. Make a product with those ingredients then make one without. Then do a blinded test to see what effect they have on your formula.  Similarly, Aloe Vera Palmitate is unlikely to have a noticeable impact.

    My suggestion is this.  Start with the following formula…

    Squalane  79%
    Marula oil 20%
    Fragrance oils 1%

    Then use it on hair and figure out what you want to improve. What characteristic? wet comb, dry comb, detangling, feel, shine? Ideally, you’ll have some way to measure these characteristics.   

    Once you figure out what you want to improve, then you can start experimenting.

    Make your next formula… 

    Squalane  69%
    Marula oil 20%
    Aloe vera palmitate 10%
    Fragrance oils 1%

    Then try your testing again.  Have you improved things? Have you made them worse? Or are they the same?  If it’s better than that’s your new “base” formula. If there is no improvement or it is worse, go back to the first formula & leave out the Aloe Vera.

    Take this same type of approach with all the other ingredients. I would use the maximum recommend level of any ingredient suggested by the supplier. Once you get something that works, then you can cut back to lower levels.

    Just blindly adding ingredients without a target or notion of what you are trying to improve, is not going to get you to an optimized formula.

    If you don’t want to take this approach, then just add 1% of your new ingredient. I’m sure it will work fine. It probably won’t have any  noticeable effect, but it probably won’t destabilize your product either.

  • OldPerry

    Professional Chemist / Formulator
    March 18, 2020 at 8:04 pm in reply to: Peptides technology

    You’re getting closer.  “Bear berry leaf extract brightens skin” is a specific claim that can be discussed. I don’t believe it works in a consumer noticeable way, but given controlled studies I could be convinced it does. Interestingly, this review of natural ingredients for skin lightening does not list bear berry.  https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.639.5645&rep=rep1&type=pdf

    As far as turmeric extract for anti-aging, that is still not a specific enough claim.  What specific feature of anti-aging does turmeric “work” for?  (anti-wrinkle, skin tightening, hyperpigmentation, etc.)

  • OldPerry

    Professional Chemist / Formulator
    March 18, 2020 at 2:02 pm in reply to: Peptides technology

    The problem with this discussion is that you haven’t defined what you mean by “peptides work”.  Or even “botanicals and herbs work well”.

    When you say they “work” what exactly are they working to do?  How do you determine the difference when something works or doesn’t work?

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 8:40 pm in reply to: hand sanitizing gel

    Don’t formulate a sanitizing gel. Just use soap and water.

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 7:37 pm in reply to: Soap is better for Corona virus?

    Sorry, formulating household cleaners is not my area of expertise. I haven’t investigated the subject enough to give a useful opinion.

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 3:06 pm in reply to: Bottle closure and oxidation…..

    If you’re not using DEET, you shouldn’t be calling it a mosquito lotion. It might work for you for an hour, but if you are intent on selling the product you have to test it on all people. 

    Yes, I think using a pump would improve the stability over a flip cap.

    Without knowing all the ingredients in your formula, it is difficult to give useful advice.

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 2:56 pm in reply to: Emusifier for lotion with great skin feel for small time operator…

    Yes, there is no answer to this question without more information.

    Your emulsion choice depends on…

    1. What oils you are using
    2. What level of oil
    3. What other ingredients you are using
    4. What type of product you are making

    There is no magic emulsifier that works for everything.

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 1:36 pm in reply to: Black small little balls

    I suspect it is the result of a reaction between something in the packaging and the formula.

  • OldPerry

    Professional Chemist / Formulator
    March 17, 2020 at 1:35 pm in reply to: What body wash do you use…. 🙂

    I use whatever shampoo I’m using as a body wash. 
    The concept of sulfate free body wash makes no sense to me.

    I’m curious, what additional benefit do you think a sulfate-free body wash would give?

  • OldPerry

    Professional Chemist / Formulator
    March 16, 2020 at 10:39 pm in reply to: world after coronavirus

    I doubt this will have a long term effect on consumption except for maybe hand sanitizer. 

  • OldPerry

    Professional Chemist / Formulator
    March 16, 2020 at 10:37 pm in reply to: Raw Honey? Honey Extract? Honey Powder? Which is best?

    Honey will not have much measurable effect in your formulas (depending on the formula of course).  So you should use the one that is least expensive, easiest to incorporate and still allows you to tell the honey story. Probably honey extract.

  • OldPerry

    Professional Chemist / Formulator
    March 16, 2020 at 12:50 pm in reply to: Hand wash gone wrong - why?

    Did you do a preservative / microbial test?  It could be microbial contamination.

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