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  • KMRCSMiami

    Member
    January 24, 2023 at 11:39 pm in reply to: Cosmetic Chemists Challenge

    Hi Perry, I will definitely donate. Just so you’re aware, this website is so valuable to me that I would even consider paying a subscription. I image most people would pay to have access just to the forum  :D

  • KMRCSMiami

    Member
    January 24, 2023 at 4:55 pm in reply to: I’m looking for a private label company

    Hi, have the formulas been finalized or are you looking for private label bases? What are your MOQ requirements? 

  • KMRCSMiami

    Member
    December 2, 2022 at 1:58 am in reply to: Preservative for sun cream

    Please see attached from manufacturer.

  • KMRCSMiami

    Member
    December 2, 2022 at 1:54 am in reply to: Looking for Consultant on Balm - Production Issue

    Hi @Foxtrot, I am a product development consultant in Miami, Fl. You may check out my website at http://www.kmrcs.com and send me a message thru the “Contact” page.

    Best of luck!

  • KMRCSMiami

    Member
    December 2, 2022 at 1:49 am in reply to: Lake pigments settling in “lip gloss” formulation (photos)

    I would recommend switching to a micronized pigment, like @RKPigments  mentioned, and thickening a bit to make sure they remain suspended in the gel matrix. 

    There are also GREAT lip bases out there. Sometimes formulating from scratch isnt worth it. They can be customized easily and make speed-to-market a breeze.

  • KMRCSMiami

    Member
    December 2, 2022 at 1:44 am in reply to: How to make emulsions with surfactants?

    Ahh surfactants. There are definitely a few nuances here:

    https://chemistscorner.com/what-kinds-of-surfactants-are-used-in-cosmetics/

    In sum, they carry charges. And if you pick poorly, you can end up with an emulsion that completely separates due to the detergents. Cationic + Nonionic= OK, Cationic+ anionic= bad. You want to pick two surfactants with different strengths (mild + strong for example, or high sud + low sud) as they complement. Surfactants tend to be less than 20% w/w but be mindful of what you’re using. 

    I add mine after the emulsification step as the high-sheer tends to cause crazy suds and its just a nice process when added later. But test this theory out yourself and see what you like. 

  • KMRCSMiami

    Member
    November 14, 2022 at 4:43 pm in reply to: QMS For Manufacturers

    Thanks, @mikethair and @Microformulation <3 

  • KMRCSMiami

    Member
    November 14, 2022 at 4:41 pm in reply to: Clear sunscreen gel?

    Absolutely possible. They mainly use the more traditional (or chemical) sunscreen actives, like Octinoxate, Homosalate, etc. They are my preferred formulas. 

  • KMRCSMiami

    Member
    November 14, 2022 at 4:37 pm in reply to: Where do you buy small amounts of Lauryl Laurate in the USA?

    If you’re aware of the re-packagers, try UL Prospector and see if the larger manufacturers will send you  a sample where you only pay for shipping. It may be similar in cost. 

  • KMRCSMiami

    Member
    November 11, 2022 at 7:12 pm in reply to: Preserving an aqueous serum

    May I ask why you have all these preservative restrictions?? Is it fear??  While sodium benzoate/potassium sorbate are good, they are not ideal and there are better options out there. 

    If you stick to this system, I recommend lowering pH to 3.5-4. Prior to deciding the pH of any formula review the data for the specific preservatives. Suppliers often times have this. This way you can see what happens at different pH and the different issues you can face. 

  • KMRCSMiami

    Member
    November 11, 2022 at 7:08 pm in reply to: how to thicken my cleansing oil?

    **Please share formula so that appropriate recommendations can be provided**.

    What you’re looking for are oil gelling agents. This can be done with waxes, some polymers, etc. Happy to provide recommendations but a formula is best. 

  • KMRCSMiami

    Member
    November 11, 2022 at 7:02 pm in reply to: cream appearance after sometime

    You state that there is no specific formula… so this happens regardless of formula used with the same ingredients??  :/ I hate to say it… but the issue here is…. YOUR FORMULA/METHOD. Please share it. Something in either the methodology used (something as simple as not shearing appropriately when using emulsifiers), or an ingredient compatibility issue (like some emulsifiers dont like to be pairs with some electrolytes or function better in different bases). 

    Please share. 

  • KMRCSMiami

    Member
    November 11, 2022 at 6:59 pm in reply to: Formulating for different hair types-any tips?

    I find that all personal care products are subjective. You will have people with straight hair who will prefer the product for those with curly and vice versa. My recommendation is to (1) define your definitions and solutions for these hair products knowing they may later be challenged, and lastly (2) ask your friends what they prefer in their products and curate it around that. There is no one size fits all, or right/wrong for hair care preferences. 

    AND due to this, I would recommend removing the hair-type and just naming LOW vs HIGH moisture. This removes the complexity and bias for hair types, and allows people to choose based on preference. 

  • KMRCSMiami

    Member
    November 11, 2022 at 6:56 pm in reply to: two phase hair conditioner

    Hi, please provide the formula and operating procedure for the bi-phase product. Although, I’m pretty confident I have a good idea what is wrong here. 

  • Can you provide more details on your cool-down procedure? Specifically, temperature, equipment used, etc. 

    As another member mentioned, and I agree, this is likely due to the ingredients having different melting points. During the cooling phase, if you cool too fast or incorrectly can cause ingredients to harden (or crystallize) at different rates, and thus you get what you’ve described. Although this isn’t the case for everything, but can happen. 

  • I recommend the following methods for all ingredients. They are:

    • Like the previous commenter mentioned, some re-sellers (aka Essential Wholesale or Making Cosmetics) use really cheap packaging that should not be used for long-term. You should have an SOP (or a strategy if you don’t have SOPs) for how/when to transfer the contents if you receive product that has low quality packaging. I prefer air-tight container, desiccant, as previously recommended, making sure the material is compatible and opaque.
    • Ensure you have clear separation from R&D ingredient batches (meaning, commonly opened, exposed to air but only used for R&D), and  bulk ingredient storage (for manufacturers this will be manufacturing ingredient storage) which has stricter protocols for use. Here, what I recommend is pouring an appropriate amount of an ingredient for R&D into a secondary container, use this and refill as needed from the bulk. This way the bulk of the materials are not constantly being exposed to the environments. 
    • Store ingredients at recommended temperature and humidity, away from light. 
    • Lastly, a great thing to do is to install electronic humidity and temperature monitoring in key areas, ingredient storage. This helps ensure that if the temperature or humidity rises, there is a documented history of any humidity issues. Amazon has really cheap options. 

    These recommendations may be too much for an enthusiast, and are more appropriate for manufacturing facilities or for those who wish to operate more like a cGMP facility. 

  • KMRCSMiami

    Member
    November 11, 2022 at 6:36 pm in reply to: Need formulating services? Here are some contacts

    Hi, my name is Kristine. I run a small product development company in Miami, FL with over 7 years of cosmetic, medical device and personal care development experience. We specialize in small-scale manufacturing, custom product development, and more. We offer assistance with sourcing primary/secondary packaging, assistance with claims testing/product labeling, in addition to packaging/shipping testing.

    Lastly, we also assist brands with manufacturing consultations. We will assist you with QC implementation/strategy, provide you with recommendations for laboratory equipment based on size/scope of work, and assist with the validation of methods/SOPs/3rd party testing facilities. We pride ourselves in being a one-stop-shop for all product release/product development needs. 

    Reach out to us for any product development questions at info@kmrcosmeceuticals.com. Happy formulating!   <3

  • KMRCSMiami

    Member
    February 22, 2023 at 2:54 pm in reply to: FDA micro protocols

    Hi, is it possible to share a copy of this webinar? I would love to view it. Thanks!

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