Forum Replies Created

Page 152 of 184
  • OldPerry

    Professional Chemist / Formulator
    February 24, 2016 at 3:25 pm in reply to: Conditioner Formula Has Very Little Slip

    I think the reason that it foams is because of the high level. If you put a high level of CTAC you would also get foam. When I worked on the VO5 Hot Oil formula it used a high level (6%) of CTAC and foamed a bit.  You could probably drop the CTAC out of the formula if you are going to use CTAB.  And try it at a lower level (like 3%)

  • OldPerry

    Professional Chemist / Formulator
    February 23, 2016 at 5:53 pm in reply to: Conditioner Formula Has Very Little Slip

    That’s a pretty complicated formula for a hair conditioner.  You have multiple cationic surfactants which are just competing with each other for spots to stick on the hair.  I don’t think you get any additional benefit from using Cetrimionium Chloride and Cetrimonium Bromide & the Behentrimonium Methosulfate.  

    It also seems like you have a high amount of solids in the formula. You can make a good conditioner with less than 20% solids.  
    You could also cut back on the Coconut oil.  5% is a lot.  1% is probably enough.

  • OldPerry

    Professional Chemist / Formulator
    February 20, 2016 at 5:03 pm in reply to: Preserving an Alkaline Glycol-based Deodorant

    Theoretically, but as @Belassi said, you have to test it.

  • OldPerry

    Professional Chemist / Formulator
    February 20, 2016 at 3:24 pm in reply to: Stability analyser

    Interesting technology.

    It looks like one is a centrifuge. These have been around for a long time and I doubt that they are predictive enough since the industry hasn’t switched over to them. If you could predict 6 months of stability with a 20 min spin through the centrifuge, the industry would have quickly switched over to that technology.
    The other problem is that machines like these don’t predict stability issues like color changes, odor changes, and microbial growth. So, if the only thing it tells you is whether the emulsion will be stable, that doesn’t eliminate the need to do stability tests.
  • OldPerry

    Professional Chemist / Formulator
    February 20, 2016 at 3:13 pm in reply to: Are all chemist equal?

    No, all chemists are not equal. But specialties don’t really divide by “chemists who use synthetics” and “chemists who don’t use synthetics.”

    The main difference in formulators is by product specialty. Some formulators know a lot about creating skin care products, others know hair care, still others focus on color cosmetics.
    There are chemists who position themselves as Natural or Organic formulators and that may be who you are looking for.  However, if you are creating hair care products you would be better off getting a chemist who specializes in hair care and asking then giving them your marketing driven formulation restrictions.
    But your request to create formulas that have “no synthetics” is an impossible one. There are almost no products on the market that are made with “no synthetics.”  
    There are certainly products that qualify under natural standards like the NPA, NSF, COSMOS, or even the USDA. But these standards allow for synthetic ingredients and companies who make products use synthetic ingredients.
    Brands like Burt’s Bees, Say Yes To, JASON organic, Honest Beauty, etc. all use synthetics.
  • OldPerry

    Professional Chemist / Formulator
    February 19, 2016 at 6:34 pm in reply to: Polymer science
  • OldPerry

    Professional Chemist / Formulator
    February 18, 2016 at 3:42 am in reply to: Evaluating your cosmetic prototypes

    Thanks for the link Bob.  I am traveling at the moment and forgot that the article had posted.

  • OldPerry

    Professional Chemist / Formulator
    February 16, 2016 at 5:11 am in reply to: Cleaning petrolatum off tools and equipments

    Hot water and surfactant (like sodium lauryl sulfate).  I always used shampoo.

  • OldPerry

    Professional Chemist / Formulator
    February 16, 2016 at 2:41 am in reply to: Stability cream

    I’ll try to add a plugin that let’s you add pictures directly.

  • OldPerry

    Professional Chemist / Formulator
    February 16, 2016 at 2:34 am in reply to: Stability cream

    You need to upload the picture to some hosting service (like Flickr).  Then link the address to the picture.

  • OldPerry

    Professional Chemist / Formulator
    February 16, 2016 at 2:32 am in reply to: Hair spray with salt

    Glycerin and Propylene Glycol can leave a heavy feeling on hair. I doubt a high level of salt would have that effect.

  • OldPerry

    Professional Chemist / Formulator
    February 16, 2016 at 2:27 am in reply to: digestive enzyme supplement reccomendations

    What @BartJ said. 

    I’ll add that I wouldn’t recommend any supplements because in the US they are not suitably regulated and I am skeptical of the safety of the products. http://www.pbs.org/wgbh/frontline/film/supplements-and-safety/
  • OldPerry

    Professional Chemist / Formulator
    February 13, 2016 at 3:48 pm in reply to: Hair spray with salt

    You haven’t provided enough information for someone to answer.  What are all the ingredients in your formula?

  • OldPerry

    Professional Chemist / Formulator
    February 12, 2016 at 10:12 pm in reply to: Thickening agent compatible with high salt content

    What is the polymer thickener you are using?  Also, what is the ending pH?

  • OldPerry

    Professional Chemist / Formulator
    February 12, 2016 at 10:11 pm in reply to: digestive enzyme supplement reccomendations

    What kind of product are you making?  Is it topical or ingestible?

  • OldPerry

    Professional Chemist / Formulator
    February 11, 2016 at 9:48 pm in reply to: Scaling up liquid soap production - do I really need a machine?

    Or you could hire a contract manufacturer and spend your time and money focused on marketing your brand.

  • OldPerry

    Professional Chemist / Formulator
    February 10, 2016 at 3:22 pm in reply to: Formulation for Shampoo

    You should be able to respond to any message on this post (or any other post for that matter).  If you are having problems hit the ‘refresh’ button on your browser. Sometimes that helps.

    As to your question, why don’t you mix together the ingredients and then ask your questions?
    The RPM to use is the speed at which the ingredients mix together but does not cause the batch to be too aerated. No one can answer a question like that because we don’t know your particular set-up.
    I don’t have a specific pH meter to recommend but either of these will work and are relatively inexpensive. This pH meter or even this pH meter would work.
  • OldPerry

    Professional Chemist / Formulator
    February 10, 2016 at 3:17 pm in reply to: How to start your own beauty line? HAPPI Article

    Yeah, after actually reading the article I have to agree.

    You might find the free 44 page report we give away more helpful. http://startacosmeticline.com
    I think you can avoid getting your brand name stolen (at least in the US) by filing for a Trademark at the USPTO.  I’m not sure how things work in Brazil where you are located though.
  • OldPerry

    Professional Chemist / Formulator
    February 10, 2016 at 3:14 pm in reply to: What’s in tanning sprays that creates the brown colour? Can other colours be created?

    The ingredient is Dihydroxyacetone (DHA). It chemically reacts with proteins in the outer layers of the skin and will last until the skin naturally wears off.  A few days at most.  Orange/brown is pretty much your only choice of color.

  • OldPerry

    Professional Chemist / Formulator
    February 9, 2016 at 8:25 pm in reply to: How to start your own beauty line? HAPPI Article

    Nice.  Thanks for the link.

  • OldPerry

    Professional Chemist / Formulator
    February 9, 2016 at 5:19 pm in reply to: Increased Opacity of Shampoo w/Thickeners & Oils

    As @Belassi says, solubility. The glyceryl caprylate caprate is only slightly soluble in water and the oils are only slightly soluble when combined with your surfactant. When you add them together the whole thing falls apart.  

    You need more surfactant or less oil or a solubilzing agent.
  • OldPerry

    Professional Chemist / Formulator
    February 8, 2016 at 3:09 pm in reply to: What were some important discoveries in cosmetic science?

    Searching through the Journal of the SCC would be a good first step.

    Your question is actually not specific enough so it’s tough to give an answer. Since polymers are used in the creation of hair care products the development of polymerization reactions would be relevant. 
    Specifically on the topic of PPD you can start with this journal article. http://journal.scconline.org//pdf/cc1968/cc019n03/p00141-p00148.pdf
    Then go through the history as published in the JSCC.
    http://journal.scconline.org/search/PIsearch.cgi?query=PPD&submit=Search  Anything older than 5 years will be available to anyone.

    Hope that helps
  • OldPerry

    Professional Chemist / Formulator
    February 5, 2016 at 2:38 pm in reply to: EOS Lip Balm Debacle

    Hypoallergenic has no legal meaning so pretty much anyone can call themselves hypoallergenic.

  • OldPerry

    Professional Chemist / Formulator
    February 4, 2016 at 5:21 pm in reply to: Phosphorescent hair coloring

    Just because something is on the market doesn’t mean that it is legal.

  • OldPerry

    Professional Chemist / Formulator
    February 4, 2016 at 5:12 pm in reply to: EOS Lip Balm Debacle
Page 152 of 184