Forum Replies Created

Page 79 of 184
  • OldPerry

    Professional Chemist / Formulator
    November 25, 2019 at 2:40 pm in reply to: Easy to formulate and low cost

    You’re approaching this backwards.  If you want to start a cosmetic line the first question to answer is, what do my customers want?

    Make the product that your customers will buy.

    Then go out and hire someone to make the products for you. If your goal is to start a cosmetic line, you need to spend your efforts on marketing the product. If you spend time making products you won’t learn anything about creating a successful brand.

  • OldPerry

    Professional Chemist / Formulator
    November 25, 2019 at 2:37 pm in reply to: Hyaluronic Acid Serum losing viscosity

    You’ll get more helpful responses if you post all the ingredients in the systems you are talking about.

  • OldPerry

    Professional Chemist / Formulator
    November 25, 2019 at 1:36 pm in reply to: Different mol.weight of HA in one product?

    What is your reasoning for using the hyaluronic acid? What do you want it to do?

    In my opinion, you can use as much or as little of each kind as you want. There will be no measurable difference if you use 1% of each or cumulatively up to 1%.  It’s unlikely you’ll be able to measure any difference or certainly notice any performance difference whatever ratio you use.

    According to the research I’ve seen, you would get just as much moisturizing benefit from using mostly glycerin and then putting a drop of HA in your formula for claims purposes. 

    This discussion about hyaluronic acid vs glycerin might be interesting to you.

  • OldPerry

    Professional Chemist / Formulator
    November 24, 2019 at 10:19 pm in reply to: what helps with fighting frizz?

    If you are talking about making a product for damaged hair, then you could use a cationic polymer like Polyquaternium 10 or 7 or Guarhydroxypropyltrimonium Chloride.  Or you can try a silicon like Dimethicone.

    I don’t exactly know what you mean when you say “high porosity.”  How is porosity measured?  What type of device do you use and what value is measured?  How does one determine the difference between high porosity and low porosity?

  • OldPerry

    Professional Chemist / Formulator
    November 23, 2019 at 2:45 pm in reply to: Is Aloe vera extract really works in Shampoo.

    I’ve never seen any evidence that Aloe does anything when delivered from a shampoo. It is a claims ingredient only.

  • OldPerry

    Professional Chemist / Formulator
    November 22, 2019 at 10:28 pm in reply to: how to mix cbd isolate into base product

    That would be a good place to start. It might require 4:1 but you need to experiment. I haven’t done the testing myself.

  • OldPerry

    Professional Chemist / Formulator
    November 22, 2019 at 8:10 pm in reply to: how to mix cbd isolate into base product

    You probably need an emulsifying agent.

  • OldPerry

    Professional Chemist / Formulator
    November 22, 2019 at 6:17 pm in reply to: Side effects of sodium chloride in Shampoo.

    There are no hair or skin side effects of salt in shampoo.  Salt is water soluble and is rinsed down the drain during use.

    You don’t have to use salt in shampoo for viscosity but it is usually the least expensive, most efficient and easiest option.

  • OldPerry

    Professional Chemist / Formulator
    November 21, 2019 at 1:49 am in reply to: Where can I find this rare ingredient? Please help!

    I don’t have an answer for this but you might try either http://knowde.com  or http://chemberry.com  They are less strict about sampling the UL Prospector.

  • OldPerry

    Professional Chemist / Formulator
    November 20, 2019 at 11:03 pm in reply to: I need advice formulating mild dog shampoo

    Salicylic acid is an approved drug active for anti-dandruff so that works.

    There is a study that showed Colloidal oatmeal had an effect but it’s a real weak study done by J&J scientists (who happen to sell Aveno that features colloidal oatmeal).  You can read it here. 

    https://www.dropbox.com/s/dgr6z33lnbp7gw8/colloidal.pdf?dl=0

    The study is just terrible and didn’t even compare it to a control lotion like their own formula. When put into some skin lotion, I doubt you’ll see any effect of colloidal oatmeal. It is just a claims ingredient.

  • OldPerry

    Professional Chemist / Formulator
    November 20, 2019 at 3:16 pm in reply to: Vitamin infused oil questions..

    Vitamin C is also water soluble.

  • OldPerry

    Professional Chemist / Formulator
    November 20, 2019 at 1:16 pm in reply to: Purple Shampoo

    Shampoos are generally acidic.

  • OldPerry

    Professional Chemist / Formulator
    November 20, 2019 at 1:15 pm in reply to: Here’s some raw material videos
  • OldPerry

    Professional Chemist / Formulator
    November 19, 2019 at 6:33 pm in reply to: Does the CAPB supplied by most vendors have salt?

    @Aanchal - For sure. If you change vendors for any ingredient you should expect there will be some changes in your formulation. Most cosmetic ingredients are different in small ways even if they have the same INCI name. 

    We once swapped vendors for our SLES and had to do stability and other testing on over 15 SKUs of VO5 shampoo. And there were differences.

  • OldPerry

    Professional Chemist / Formulator
    November 19, 2019 at 4:22 pm in reply to: Argan oil causing turbidity in a natural shampoo.

    @EVchem - that might not even be low enough. I once worked on a Jojoba shampoo where even 0.01% jojoba oil caused clouding. This system probably needs some kind of solubilizer for the Aragan oil, Polysorbate 20 or Oleth 40 maybe.

  • OldPerry

    Professional Chemist / Formulator
    November 19, 2019 at 12:46 am in reply to: Achieving white coloured cream with essential oil content

    Arnica Montana Flower extract is not an oil. It’s probably just a 1% solution of all the water soluble components of the plant.  Or they just made a mistake on their ingredient list. Since this list isn’t properly done (e.g. Purified Water does not belong on a cosmetic ingredient list) they are a bit lax on following the ingredient listing rules.

  • OldPerry

    Professional Chemist / Formulator
    November 19, 2019 at 12:11 am in reply to: DMDM Hydantoin vs. Germall Plus

    I don’t know what the problem is. I think it may be a misunderstanding by the Makingcosmetics website. There is a “hydantoin” ingredient on the list but it is Diphenylhydantoin which is not the same as DMDM Hydantoin.  Here is the current list of Prop 65 ingredients and DMDM Hydantoin is not on it.

    https://oehha.ca.gov/media/downloads/proposition-65//p65list091319.pdf

    DMDM Hydantoin does not produce any more free formaldehyde than Diazolidinyl Urea so that’s not likely a suitable explanation either.

    It would be interesting to see why they list the warning on one rather than the other.

  • OldPerry

    Professional Chemist / Formulator
    November 18, 2019 at 10:53 pm in reply to: Presevative for all-natural formulations

    Here’s a pretty good compilation put together by @MakingSkincare which can get you started.

    List of cosmetic preservatives

  • OldPerry

    Professional Chemist / Formulator
    November 18, 2019 at 9:43 pm in reply to: Presevative for all-natural formulations

    Yes, unless you can define what you mean by “natural” it’s hard to give a good answer. Phenoxyethanol is considered natural by some & not natural by others.

    Also, it depends on the type of formulation you are making. 

  • OldPerry

    Professional Chemist / Formulator
    November 18, 2019 at 9:42 pm in reply to: Preservative for nonionic surfactant shampoo

    @ngarayeva001 - it’s strange because both of those materials contain Diazolidinyl Urea which is also a formaldehyde donor, same as DMDM Hydantoin. 

  • OldPerry

    Professional Chemist / Formulator
    November 18, 2019 at 4:57 pm in reply to: Preservative for nonionic surfactant shampoo

    @ngarayeva001 - we used DMDM Hydantoin as the primary preservative for all VO5 shampoo formulas for years. One of my first formulating projects was to remove methylparaben from our formulas because the DMDM worked fine by itself. Super easy to work with, it’s essentially like just adding water. Never had a stability problem caused by it.

  • OldPerry

    Professional Chemist / Formulator
    November 18, 2019 at 4:24 pm in reply to: Soap

    You haven’t asked a question that anyone could help with. What specifically do you want to know? Do you have an ingredient list?

  • OldPerry

    Professional Chemist / Formulator
    November 15, 2019 at 1:31 am in reply to: Face wash formula failed. Please help

    My guess would be mold. 

    “Molds consist of long, branching filaments of cells…”
    https://www.cliffsnotes.com/study-guides/biology/microbiology/the-fungi/structure-and-physiology-of-fungi

    While you might have a suitable preservative system in there, that isn’t a guarantee of preservation.  As they said in Jurassic Park - “Life finds a way”

  • OldPerry

    Professional Chemist / Formulator
    November 15, 2019 at 1:07 am in reply to: Natural Cosmetics Act Proposed By US Government

    I think we’re mostly in agreement except for our estimation of the ease at which this will pass. I still doubt it will. 

    Though I have to wonder, if the FTC is already filing lawsuits then why is there need for more regulation?

    The cosmetic industry is rife with deceptive advertising. Natural, cruelty free, preservative free, hypoallergenic, stronger hair, anti-aging claims, celebrity endorsements, paid influencers, fake online reviews. Not sure how much this will help.

  • OldPerry

    Professional Chemist / Formulator
    November 14, 2019 at 11:23 pm in reply to: Face wash formula failed. Please help

    How long did it take before you noticed the threads?   Are they threads or crystals? (do they break or stretch?)

Page 79 of 184