Forum Replies Created

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  • MarkBroussard

    Professional Chemist / Formulator
    February 14, 2017 at 1:53 am in reply to: Hair Cleansing Oil

    And the Egyptians rubbed donkey dung on cuts and burns … LOL! (that’s true, but I’m making a joke).

    Personally … oil cleansing … I understand the concept, but don’t think it is effective without a surfactant incorporated.  I mean, why not rub dirt on your face so it absorbs the dirt already on your skin?

  • MarkBroussard

    Professional Chemist / Formulator
    February 14, 2017 at 1:16 am in reply to: Could I be adding too much citric acid to reduce PH

    @juliap3:

    It would appear you are trying to create a moisturizing day cream with skin brightening properties.  If that is your objective, cut out all of the ingredients you have in there that do not directly contribute to that objective.

    KISS (Keep It Simple Stupid) is the best approach while you are still learning how to formulate.  

  • MarkBroussard

    Professional Chemist / Formulator
    February 14, 2017 at 12:51 am in reply to: Hair Cleansing Oil

    @natzam:

    There’s an oil soluble/miscible surfactant/emulsifier, Sorbeth-30 Tetraoleate, that you can add to an oil base.  When you rub it into the hair and then rinse with water, it “milks” … no foaming, but the surfactant does help wash off excess oil.

  • MarkBroussard

    Professional Chemist / Formulator
    February 14, 2017 at 12:38 am in reply to: Thixin R

    @ChicoB:

    I’ve used Thixin R in a couple of formulations following the manufacturer’s recommended formulation procedures.  I would recommend you stick with the manufacturer’s protocol unless there is some reason you need to incorporate it at a higher temperature.  They created those formulation guidelines for a reason.

  • MarkBroussard

    Professional Chemist / Formulator
    February 11, 2017 at 1:41 pm in reply to: What regulatory i should know when seeking cosmetic chemists?

    @NicolLin:

    This happens all the time … everyone thinks they have an idea so unique … “there’s nothing like it on the market” … we hear it all the time.  No one is in the business to steal your idea, and no offense, but you’re idea is probably not really as unique as you think it is.

    Regarding NDA’s, I simply don’t sign them.  Non-Disclosure is part of my contract and should be presumed, otherwise I would not be in business.  

    Second issue is as development chemists we see all sorts of new product ideas, but they are generally variations on a theme … this or that in a Shampoo as opposed to that or this … variations on ingredients, but at the end of the day, still a Shampoo.  So, there is virtually nothing that you could have thought of that is so unique regarding a Shampoo formulation that I cannot prove that I had prior knowledge of, except for some specific ingredient deck.  So, the NDA really does not protect you the way you think it may since very little, if any, of the information you are going to provide to me is actually confidential, except for a specific ingredient deck. 

    For a contract to be legally binding, each party must receive some sort of consideration.  If I sign an NDA with you, but we never actually execute a development contract, now I have an NDA in place with a party who never actually became a client and who did not to pay me any consideration.  And, all those NDA’s with people who never actually became clients may be in various legal jurisdictions, unless I specifically specify my home district as the legal jurisdiction.  And, since I did not receive any consideration, the contract is not really legally binding.  

    So, signing an NDA with a potential client, just for them to tell you their idea is something I simply do not do. I hope this gives you some insight into the real value of an NDA … it’s virtually worthless as a form of legal protection.

    Same with patents in the cosmetics arena.  Any chemist worth their salt can work around a patent in a heartbeat.

  • MarkBroussard

    Professional Chemist / Formulator
    February 9, 2017 at 10:59 am in reply to: Propylene Glycol Extract of plants

    @gmicca:

    There are a handful of commonly used solvents for preparing plant extracts; Water, Propanediol, Butylene Glycol are some of the more commonly used solvents for plant extracts. Is there any particular reason you specifically want to use Propylene Glycol?  As JohnB made reference to … use the solvent best suited for the compounds you want to extract.

  • MarkBroussard

    Professional Chemist / Formulator
    February 9, 2017 at 1:12 am in reply to: Pet testing & safety sheet

    I formulated a Pet Shampoo for a client.  In researching her reference formulas, we found that one of them was simply purchasing a Pet Shampoo from Vermont Soap that Vermont sells for $7.00 for a 16 oz bottle.  The reference client was doing nothing more than buying the Vermont Pet Shampoo, bottling it with their own label and marketing it as a “premium” Pet Shampoo for $40 for a 16 oz bottle.  The did nothing to enhance the base, simply rebottled it.

    Stephensons is a very reputable company.  You should have no issues.  But, best you check into the registration requirements.

  • MarkBroussard

    Professional Chemist / Formulator
    February 8, 2017 at 11:49 am in reply to: facewash formulating

    Trying using Glyceryl Oleate at 1% to get the conditioning effect and Crothix or Glutamate LT plus salt for thickening.

  • MarkBroussard

    Professional Chemist / Formulator
    February 7, 2017 at 1:06 pm in reply to: Massage Oil

    @mcars:

    I don’t think you’re really going to notice any difference between essential oils in terms of longevity of scent.  More likely, if you are not added something to prevent rancidity of the base oil, such as tocopherol or rosemary, the change in scent will be more from rancidity of the base oil than anything else.

    For massage oils, you can mix any blend of base carrier oils you want … take a look at the Biotone website, they list all of the ingredients in their various massage oils. 

  • MarkBroussard

    Professional Chemist / Formulator
    February 6, 2017 at 12:40 pm in reply to: Pet testing & safety sheet

    @cbwp:

    I am not certain … I would ask the manufacturer you are purchasing the product from.  I do not have experience with private labeling in the EU, only with new product development.

    If you add different oils, perfumes or actives to the base, it becomes a new product and you would most likely have to register your ‘enriched’ version of the product.  You could probably save a lot of time and money by using the same Safety Assessor that issued the original report as the only ingredients that would need to be reviewed would be the new ones you add to the already approved base.

  • MarkBroussard

    Professional Chemist / Formulator
    February 6, 2017 at 12:47 am in reply to: Simple Facial Mist/Toner (preservative question)

    Why not just use Potassium Sorbate/Sodium Benzoate? … something like Sharomix 713 … the same preservatives that are used in your component ingredients.

    There is no one “correct” preservative for sprayables … simply use the preservative that is correct for the formulation.  But, if you’re concerned about salting in the nozzle, I’d stick with liquid preservatives like benzyl alcohol (and) dehydroacetic acid or propanediol/benzyl alcohol/pentylene glycol

  • MarkBroussard

    Professional Chemist / Formulator
    February 6, 2017 at 12:36 am in reply to: Pet testing & safety sheet

    @cbwp:

    If you’re buying a product in the EU to private label, the developer/manufacturer of that product would have to have done a safety assessment and registered that product before it could be sold in the EU.  Most likely, that would have included a Preservative Challenge Test … Just ask them for the documentation.

    You could also ask that they provide you with documentation that each lot you purchase has passed a microbial QC plate count test … that’s standard.

  • MarkBroussard

    Professional Chemist / Formulator
    January 27, 2017 at 3:52 am in reply to: Using antioxidants, tea and pine bark.

    @belassi:

    I read something recently ranking antioxidants:

    Gotu Kola > Pinaster Bark Extract > Green Tea

    Curious, I have a client who has requested Pinaster Pine Bark Extract … I obtained a brown powder that is supposedly oil soluble … you mentioned you are using a liquid … may I ask where you’re purchasing it and is it Pinaster … the Pinaster is bloody expensive.

  • MarkBroussard

    Professional Chemist / Formulator
    January 26, 2017 at 2:13 am in reply to: “bee cosmetics” formulator required

    @Pete:

    I would suggest you post a new Discussion Thread:  Does anyone know contract manufacturers who offer small production runs of X to Y units per run?  And send emily.spammer a PM inquiring about their services.

  • MarkBroussard

    Professional Chemist / Formulator
    January 24, 2017 at 5:43 am in reply to: “bee cosmetics” formulator required

    @emily.flemer:

    AnnaLavar is correct … I know you are new to the forum, but it is intended for participants to provide insightful answers to questions or discuss technical topics, not to promote your business.  So, please refrain from posting as you have above on a few occasions now.

    If you see a post where you think your company’s services could benefit the client, send the poster a Private Message.  That is the proper protocol.  Let’s keep the discussion areas for technical contributions and to provide professional advice, not advertising.

  • MarkBroussard

    Professional Chemist / Formulator
    January 23, 2017 at 12:47 pm in reply to: Colloidal Oatmeal in Dermatological Product Question

    @Skincare_developer:

    Sorry, I do not know of a lab to refer you to that has specific experience in colloidal oatmeal, but any lab that does pharmaceutical actives assays should be able to work with oatmeal.

    Just call the FDA … they can be quite helpful and will guide you in the right direction.

  • MarkBroussard

    Professional Chemist / Formulator
    January 22, 2017 at 7:07 pm in reply to: Green tea

    @Rutuja:

    When you’re formulating with ingredients that have conflicting pH requirements for stability, you’re best only option is to try shooting the gap and see what happens … or, chose one ingredient or the other, but not both.  In this case, if you’re using a Green Tea Extract in water/glycerin, you probably won’t have a problem at a higher pH.  If you’re using a Green Tea Powder like Teavigo, it will turn brown quite quickly.

  • MarkBroussard

    Professional Chemist / Formulator
    January 22, 2017 at 11:13 am in reply to: Colloidal Oatmeal in Dermatological Product Question

    @Skincare_developer:

    Your best approach would be to do an assay on specific components in colloidal oatmeal that you think are most relevant in dermatological activity:  Beta-Glucan and a marker for avenathramide.  There are several labs that specialize in assay analysis of actives in OTC and pharmaceutical products.  Since, as johnb points out, colloidal oatmeal is a complex of several components, that may be your best approach.

    Are you seeking to do this because Colloidal Oatmeal is listed as an Active Ingredient on an OTC or prescription drug product that you’re developing?

    Perhaps you should contact the FDA for guidance on what they require in actives assays on products containing colloidal oatmeal as the active ingredient. 

  • MarkBroussard

    Professional Chemist / Formulator
    January 20, 2017 at 11:45 pm in reply to: Reverse-INCI

    @Belassi:

    I would contact Cedar Concepts and Stepan … they may well be able to help you as both make similar products.

  • MarkBroussard

    Professional Chemist / Formulator
    January 20, 2017 at 11:38 am in reply to: Reverse-INCI

    Yes, I did some looking also and I think they are giving you partially accurate information … Is this how they told you to list the ingredients on your label?

    I would suspect it is PEG-150 Stearate, Cocamide DEA, Cocamidopropyl Betaine

    @Belassi:  Is this product a Liquid?

    CYCLORYL® 1023B Cedar Concepts Corporation
    • INCI Name:

      Cocamidopropyl Betaine (and) Cocamide DEA (and) Glycol Stearate (and) Sodium Xylenesulfonate

    CYCLORYL® 1023B is composed of Cocamidopropyl Betaine, Coconut Diethanolamide, Ethylene Glycol Monostearate, and Sodium Xylene Sulfonate. It is supplied as a pearlescent liquid. This product is suitable for use as a cold pearlizingagent.
  • MarkBroussard

    Professional Chemist / Formulator
    January 6, 2017 at 4:42 pm in reply to: Glycerin vs Glycerin?

    Ahhh … didn’t even notice that.  Thx.

  • MarkBroussard

    Professional Chemist / Formulator
    January 6, 2017 at 3:46 pm in reply to: Glycerin vs Glycerin?

    This sounds like more of a packaging issue than a Glycerin issue if your gel dried out … I suspect the seal was not tight on one allowing for evaporative loss of water over some period of time.  Glycerin is not volatile.  All depends on what else is in your formula.

  • MarkBroussard

    Professional Chemist / Formulator
    January 6, 2017 at 2:01 pm in reply to: Exfol cream Formula adjustments for correct ph

    @AnnaLavar:

    Your best bet is to use Sodium Lactate to increase the pH which you should bring up to at least 3.5 to 4.0.  It does not matter the concentration of Lactic Acid that you add to the formula … with a higher concentration, you’ll just add a smaller amount … the real issue is the final pH of your cream.  It should not be below 3.5.

    A note on testing products:  You’ve learned the hard way that you should never, ever test a new formulation by putting it over your entire face & neck.  Patch test on your inner arm and see if you have any reaction.  If not, then try a small patch on the face.

    As noted above, no offense, but you really sound too inexperienced and unknowledgeable to be fooling around with alpha-hydroxyacid leave on products.  But, if you are your own guinea pig, there is only one way to learn … just not first with your face … test on your arm. 

  • MarkBroussard

    Professional Chemist / Formulator
    January 2, 2017 at 3:36 am in reply to: Cosmetic Cream measuring the pH

    Get a Hanna portable pH meter … will work for any purpose.  I mean … pH is pH … there nothing magical about it whether it’s a cream, lotion, body wash.

  • MarkBroussard

    Professional Chemist / Formulator
    December 30, 2016 at 1:11 pm in reply to: hand wash formula

    You can purchase Yogurt Extract from http://www.formulatorsampleshop.com … use 2% to 3% would be fine.  

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