Forum Replies Created

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  • MarkBroussard

    Professional Chemist / Formulator
    January 31, 2019 at 11:00 am in reply to: Instant lift cream

    Rahn has a product called Liftonin Express that you might find interesting

  • MarkBroussard

    Professional Chemist / Formulator
    January 30, 2019 at 6:35 pm in reply to: Instant lift cream

    Yes, those products generally include a polymer that contacts upon drying and also contains fillers and pigments to create the appearance of wrinkles disappearing before your eyes.  The most popular one is Plexaderm that uses sodium silicate as the contracting polymer along with anti-wrinkle tripeptides.

    It’s essentially an optical illusion … the polymer contracts pulling the skin taut and the wrinkles seem to disappear.  The effect lasts about 6 - 8 hours.

  • MarkBroussard

    Professional Chemist / Formulator
    January 30, 2019 at 2:03 pm in reply to: Using Q-Max co-enzyme Q10 in emulsion?

    @willow:

    It sounds like you are not homogenizing properly … it’s probably a technique issue and not an ingredient issue.

    Are you using a homogenizer or a stick blender to make your emulsion?

  • MarkBroussard

    Professional Chemist / Formulator
    January 30, 2019 at 1:24 pm in reply to: Most Effective Ecocert-Compliant Fungicidal Preservative?

    Again from the Dr. Straetman’s line:

    Dermosoft 1388:  Sodium Levulinate, Sodium Anisate.

    or

    Phenethyl Alcohol, Pentylene Glycol, Propanediol (Linatural Ultra-3)

    p-Anisic Acid does not have a pronounced scent

  • MarkBroussard

    Professional Chemist / Formulator
    January 29, 2019 at 11:11 pm in reply to: Most Effective Ecocert-Compliant Fungicidal Preservative?

    Naticide (Parfum) from Singera
    P-Anisic Acid from Dr. Straetmans

    If you are specifically looking for a fungicide to supplement your other presevative

  • MarkBroussard

    Professional Chemist / Formulator
    January 29, 2019 at 1:38 pm in reply to: Dog shampoo bars?

    There may well have been in the past.  Perhaps the bars for dogs were replaced by liquid products due to overwhelming consumer preference for the liquid products … I would much rather us a liquid on my dog than trying to work up a good lather with a bar.

  • MarkBroussard

    Professional Chemist / Formulator
    January 28, 2019 at 1:31 am in reply to: Ritamulse Questions Need Help

    @carplgrower:

    I would recommend that you drop your total oils/fats/butters to 10%.  RitaMulse emulsions tend to soap upon application to the skin.  I would perhaps increase your Glyceryl Stearate to 6% and as noted above, add Xanthan Gum as a stabilizer.

  • MarkBroussard

    Professional Chemist / Formulator
    January 28, 2019 at 12:48 am in reply to: Natural dog Shampoo sulfate free!!!

    Decyl Glucosdie actually is mild, that what the science proves.  As for companies reformulating … well, who wants “Allergen Of The Year” on your label … that is probably more for marketing purposes than anything.

    This “Allergen Of The Year” competition is quite dangerous … you can see several ingredients that are perfectly fine for 99% of the population fall out of favor based on these kinds of articles.  Look at what happened to parabens.

  • MarkBroussard

    Professional Chemist / Formulator
    January 27, 2019 at 11:58 pm in reply to: Natural dog Shampoo sulfate free!!!

    Actually, decyl glucoside ranks a bit milder than CAPB … but I’m sure not appreciably enough to make much of a difference unless someone is predisposed to an contact reaction to either one.

  • MarkBroussard

    Professional Chemist / Formulator
    January 27, 2019 at 2:25 pm in reply to: Natural dog Shampoo sulfate free!!!

    Well, There’s Science and then there’s Anecdotes … The Science says that 98% to 99% of the population do not have any sensitivity to alykylpolyglucosides.

  • MarkBroussard

    Professional Chemist / Formulator
    January 27, 2019 at 3:06 am in reply to: Reaction with Lye causing ammonia fumes

    @jiroband:

    Ok, then your problem is most certainly Niacinamide reacting with NaOH to release the ammonia, so you should probably leave it out of your concoction.

  • MarkBroussard

    Professional Chemist / Formulator
    January 27, 2019 at 2:00 am in reply to: Natural dog Shampoo sulfate free!!!

    Any ingredient is going to have some subpopulation that will have some sort of sensitivity to it … look at is this way … 98% to 99% of the population don’t have any sensitivity to Decyl Glucoside.

  • MarkBroussard

    Professional Chemist / Formulator
    January 26, 2019 at 9:05 pm in reply to: Reaction with Lye causing ammonia fumes

    @jiroband:

    If you want to include these additional water-soluble ingredients, I would recommend that you change your procedure.  First, a 50% NaOH solution is quite high … did you calculate the correct amount of NaOH it would take to saponify your oils?  Generally, your NaOH solution would be more in the 30% range.  But, if you use a saponification calculator, you’ll get the correct amount of lye/water to add for the specific oils you are using.

    Regardless, I would recommend that you first add your NaOH solution to the oils and saponify to a light trace and then add these ingredients after your saponification reaction is complete to minimize/eliminate reaction of the NaOH with one of these additional ingredients. 

    The most likely culprit is the NaOH reacting with Niacinamide to form Nicatinic Acid + Ammonia.  You might reconsider adding Niacinamide to this concoction.

  • MarkBroussard

    Professional Chemist / Formulator
    January 26, 2019 at 7:12 pm in reply to: Dog shampoo bars?

    Sure, cats live in the same nature as dogs.  I don’t know anything specific about cat’s skin, but if you do some research, I’m sure the info is out there.

  • MarkBroussard

    Professional Chemist / Formulator
    January 26, 2019 at 3:29 pm in reply to: Dog shampoo bars?

    Yes, those are bars of soap that the marketer is trying to position as formulated for dogs. 

    Nonsense … it’s soap, so it will have a pH of at least 9.0 and, in my opinion, should not be used on dogs.

    Look at the ways dogs cleanse & groom naturally … using water, shaking, licking themselves … you’ll want to use the most gentle, pH-balanced cleanser you can find.

    Your best models for developing dog shampoos are tear-free baby shampoos. 

    I have a poodle and make up a simple Plantapon TF ( Decyl Glucoside (and) Polyglyceryl-10 Caprylate/Caprate (and) Coco-Glucoside (and) Glyceryl Oleate) mix consisting of nothing more than Water, Plantapon TF, pH adjuster 

  • MarkBroussard

    Professional Chemist / Formulator
    January 25, 2019 at 10:54 pm in reply to: Natural dog Shampoo sulfate free!!!

    @Kull_Axel:

    I might recommend that you peruse the surfactants available on re-packer websites such as SaveOnCitric, MakingCosmetics, IngredientsToDieFor, Lotioncrafter … the surfactants you are asking about are only available manufacturer-direct and generally by the drum.  

  • MarkBroussard

    Professional Chemist / Formulator
    January 25, 2019 at 4:28 pm in reply to: Natural dog Shampoo sulfate free!!!

    @Perry:

    Yes, that would be more simple … The Aloe & Oat Extract … those are for label appeal, just in case your dog can read.

  • MarkBroussard

    Professional Chemist / Formulator
    January 25, 2019 at 3:07 am in reply to: Natural dog Shampoo sulfate free!!!

    @Kull_Axel:

    You can make a simple, effective and inexpensive natural dog shampoo with just a few ingredients:

    Water
    Decyl Glucoside
    Aloe Vera Juice
    Oatmeal Extract or Oat Beta Glucan
    Preservative
    Water-soluble Natural Fragrance (www.carrubba.com)
    Xanthan Gum

    Keep your final pH at 7.5 … matches the pH of a dog’s skin.

    You won’t be able to afford to purchase a 55 gallon drum of Iselux Mild for your personal use on your dog … it’s not available from re-packers.

  • MarkBroussard

    Professional Chemist / Formulator
    January 22, 2019 at 12:54 pm in reply to: Surfactant only syndet shampoo bar?

    @sbrownbox

    You can use:

    Sodium
    Cocoyl Isethionate (and) Stearic Acid
    Pureact SNDT65 - Innospec

     
    Melt it down in some Shea Butter and that’s about as simple as you can get.

  • MarkBroussard

    Professional Chemist / Formulator
    January 20, 2019 at 4:33 pm in reply to: Cream Turning Pink with Aspen bark and honeysuckle extract

    Yes, they do not reliably protect a wide variety of products and are very formula dependent.  Anytime you use a preservative such as Natapres or Leucidal Liquid, you are always taking a chance that you will fail Preservative Challenge Test … that is why I never use them … they are simply not reliable.  They might work in some formulas, but no point in taking a chance when there are other natural preservatives that work in 95% of all formulas.

    Aspen Bark Extract is not broad spectrum.  You can add gluconolactone as an individual ingredient.  The Gluconolactone+Sodium Benzoate can be finnicky to work with and has its own relatively high rate of failure as a preservative.

  • MarkBroussard

    Professional Chemist / Formulator
    January 19, 2019 at 1:47 pm in reply to: Release of Ownership of Formulation for Client

    There is no such “form” … you will need to have an attorney draft an agreement.

  • MarkBroussard

    Professional Chemist / Formulator
    January 19, 2019 at 1:46 pm in reply to: Cream Turning Pink with Aspen bark and honeysuckle extract

    Agreed … the preservatives your trying to use are all “Junk” status.  If you want to use a good natural preservative that works:  Linatural Ultra-3 from Lincoln Fine Ingredients (Phenethyl Alcohol, Pentylene Glycol, Propanediol) or Dermosoft 1388 (Dr. Stratemans, also Formulator Sample Shop) + Parfum.

    I suspect there’s a good reason why you are having trouble finding Natapres

  • MarkBroussard

    Professional Chemist / Formulator
    January 17, 2019 at 3:12 pm in reply to: Differing properties of the same plant oil between different sellers: is it normal?

    That would be quite unusual as most oils actually do not smell very good, nor much like the source fruit

  • MarkBroussard

    Professional Chemist / Formulator
    January 17, 2019 at 11:50 am in reply to: MAP (Magnesium Ascorbyl Phosphate) “Breaks” emulsion

    You’ll need a co-emulsifier for Olivem 1000.  It does not yield stable emulsions as a solo emulsifier.  Add Glyceryl Stearate at 2%.

    MAP should not be added at temperatures much above 40C, so best you add it it at cool down.

  • MarkBroussard

    Professional Chemist / Formulator
    January 17, 2019 at 11:45 am in reply to: Differing properties of the same plant oil between different sellers: is it normal?

    Yes, it is normal to observe differences in the same oil from different suppliers, particularly unrefined oils.  The different suppliers source the fruit from different farmers and the fruit are grown in different areas of the world under different conditions of soil, rainfall and other environmental factors.  You will also see lot-to-lot differences from the same supplier … same factors at play

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