Forum Replies Created

Page 15 of 88
  • PhilGeis

    Member
    January 12, 2024 at 6:04 am in reply to: Baby feeding bottle cleaner/detergent

    That is a poor preservative system and a higher risk population is exposed. What is pH and packaging?

  • PhilGeis

    Member
    January 11, 2024 at 9:56 am in reply to: Help formulating a cleansing conditioner

    That is a pretty weak preservative system - not much Gram neg protection.

  • PhilGeis

    Member
    January 10, 2024 at 8:09 am in reply to: Mould growth in Aqueous Cream

    Was this changed supported by challenge by data?

  • PhilGeis

    Member
    January 9, 2024 at 7:21 pm in reply to: Tank cleaning compounds

    What size tank? Spray balls? What type of product residue?

  • PhilGeis

    Member
    January 6, 2024 at 6:06 am in reply to: Glycolic acid reacting with peservative

    It’s associated with the addition of which preservative?

  • PhilGeis

    Member
    January 5, 2024 at 1:29 pm in reply to: Cooling and tingling effect in sexual wellness cosmetics

    Come on!. Put some skin in the game - try it where the sun don’t shine! How else will you know its effect - good or bad..

  • PhilGeis

    Member
    January 5, 2024 at 8:46 am in reply to: BIphasic products

    Biphasic - as in ribbons? Preservative migration is no more and prob much less a concern than with emulsion. But use preservatives with great water solubility.

  • PhilGeis

    Member
    January 5, 2024 at 8:24 am in reply to: Vehicle Shampoo Help

    You’ll need preservation. Suggest Neolone or Dantogard with a chelator such as EDTA.

  • PhilGeis

    Member
    January 4, 2024 at 3:16 pm in reply to: OMG….what is this? AntiMicro Banana

    Hold mother of pearl!! Finally, the miracle. Think secret was the magnetism. Looks like I’m out of a job.

  • PhilGeis

    Member
    January 4, 2024 at 5:11 am in reply to: Are these plate counts…normal? Acceptable???

    FD&C Act definition of “cosmetic” has 2 sections. The one with which we are familiar and the second:

    .. (2) articles intended for use as a component of any such articles; except that such term shall not include soap.”

    Ingredients of cosmetics are themselves cosmetics. FDA BAM established 1000 cfu/g as limit for all other….

    Not aware folks have been busted on this alone - but prob would come out as 483 item in an audit.

  • PhilGeis

    Member
    January 3, 2024 at 5:35 am in reply to: Getting Started in Cosmetic Science?

    Might consider Univ Cinc. https://online.uc.edu/masters-programs/ms-in-cosmetic-science/faculty/

    Faculty is big company credentialed (GSK, P&G, Unilever). Can’t address courses directly - but for the Manuf. Hygiene for which I’m faculty and confident there is no competitive course.

  • PhilGeis

    Member
    December 30, 2023 at 3:36 pm in reply to: Are these plate counts…normal? Acceptable???

    This is a tough one. Anything approaching 1% would risk OOS and FDA would take a dim view that the preservative system was used to clean up almost 10,000/gram.

    I do think calling it “cosmetic grade” is BS.

  • PhilGeis

    Member
    December 30, 2023 at 6:45 am in reply to: Lume/Mando

    Based on current ads, they’re claiming lowered pH as basis.

  • PhilGeis

    Member
    December 30, 2023 at 5:08 am in reply to: Are these plate counts…normal? Acceptable???

    Doesn’t offer reference to what standard it “conforms.” A lot of foods have counts - hamburger a million per gram or more and much of it E. coli. Food micro is more focused on specific pathogens than total counts.

    I don’t know about the material here as a food but it is clearly not acceptable as a cosmetic ingredient.

  • PhilGeis

    Member
    December 28, 2023 at 9:19 am in reply to: Unused skincare better to keep in refrigerator?

    prob does not matter if well preserved

  • PhilGeis

    Member
    December 28, 2023 at 7:06 am in reply to: I recently got molds on a formula that worked before

    Sorry -see you did note pH and application. Don’t think organic acids will help.

    As noted aloe and oatmeal (your therapeutic actives?) are working against you as well as order of addition and apparent absence of RM qualification/finished product testing. With such rapid mold development, wonder if bacteria contamination as well.

    I appreciate your desire to help you sister but, considering potential infection of psoriatic skin, do not think you have the resources and knowledge necessary to offer a safe product beyond short refrigerated shelf life.

  • PhilGeis

    Member
    January 10, 2024 at 6:52 pm in reply to: Cleaning detergent solution

    What is your country - regulatory climate? Methylisothiazolinone effectively banned in EU.

  • PhilGeis

    Member
    January 10, 2024 at 8:06 am in reply to: Vehicle Shampoo Help

    Chelator is useful in preservation. Not sure its surface safety in your application.

  • PhilGeis

    Member
    January 7, 2024 at 6:33 am in reply to: Vehicle Shampoo Help

    As in the microbial encountered in manufacturing - e.g. do you clean and sanitize equipment, control micro content of raw materials?

    Rarely is one preservative enough. In this case, I anticipate the above will not be in control and application will bring water addition. If using only one - use the formaldehyde releaser.

  • PhilGeis

    Member
    January 6, 2024 at 11:49 am in reply to: Glycolic acid reacting with peservative

    Should be ok. ~ 0.5% (5000 ppm) phenoxy and 0.3% Na benzoate.

  • PhilGeis

    Member
    January 6, 2024 at 11:23 am in reply to: Glycolic acid reacting with peservative

    It’s not that great a system anyway. Why not try something more pedestrian like benzoate/phenoxy.

  • PhilGeis

    Member
    January 6, 2024 at 6:03 am in reply to: Vehicle Shampoo Help

    Some of those are +/- garbage in any use and, if you’re in US, don’t think any are legal in your application. A formaldehyde releaser such as Sodium Hydroxymethyl glycinate with phenoxyethanol might work if your making is reasonably clean, BUT to be legal you need to find versions compliant to relevant biocidal/pesticide regs. - in US, registered as EPA pesticidal preservatives..

  • PhilGeis

    Member
    January 5, 2024 at 5:19 pm in reply to: Vehicle Shampoo Help

    Methyl isothiazolinone (MIT) and Dimethyl dimethylol hydantoin (DMDM hydantoin)

  • PhilGeis

    Member
    December 28, 2023 at 7:14 am in reply to: Laundry strips (I think they’re green-washing)

    Maybe tell them Elliot. I know P&G would want to know if it was a problem with Tide pods

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