Forum Replies Created

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  • I assume your using sesame  oil  for eczema ..but it’s a dry feeling oil. Maybe some squalene and a butter? And a try some different emulsifiers. They make all the difference 

  • Is ethyl ascorbic acid not stable on its own? I’m curious why you need the ferulic acid? For knowledge too please!

  • Rockstargirl

    Member
    April 28, 2022 at 1:01 am in reply to: Dissolving Allantoin

    I’ve always just tossed it in the water mix and poof it’s gone. And I use 3%. 

  • Rockstargirl

    Member
    April 6, 2022 at 7:07 pm in reply to: Stability testing

    PhilGeis said:

    They have the facilities and controls and will issue a report you can show your client.
    Trying to establish it yourself will be tough and not cost effective.
    See: https://ifscc.org/wp-content/uploads/2018/05/2-Fundamentals-of-Stability-Testing.pdf

    Thanks. I can for sure see my way is certainly not very credible in “report” format. I’ll double check that they really need this for a simple formula like this. I don’t see anyone asking for it though (retailers/health Canada/FDA) 

  • Rockstargirl

    Member
    April 6, 2022 at 7:05 pm in reply to: Stability testing

    You would need lots of lab equipment that you likely don’t have. Our stability oven was over 10K when new and we have to get it certified yearly. We test objectively for SG, pH (calibrated and logged), Viscosity (Brookfield calibrated yearly), visual appearance, and other metrics. We observe it across 3 accelerated cycles for changes. The final certificate is signed by a Chemist.
    Don’t try to half-ass it or buy all that equipment for a rarely executed protocol. Call Microconsult for example out of Texas (https://microconsultinc.com/) and you would be surprised how affordable it is, especially when contrasted to buying the bench equipment. Also, you get a credible and credentialed certificate from a Professional. I consult with a company to evaluate these submissions to buyers, and we look closely at these forms.
    Don’t do it. Make a sample, FedEx it to a lab, and wait for the test results.

    Gotcha. It doesn’t seem necessary though recommended. (For this simple formulation anyway)

  • Rockstargirl

    Member
    April 6, 2022 at 2:34 pm in reply to: Stability testing

    The buyers I work with would demand a more structured stability test. Unless you have the needed equipment on board, you are best to send it out. It also grants you third-party validation.

    I understand. What is the document they present? Is stability a specialized field or could I produce one using proper conditions?

  • Rockstargirl

    Member
    April 6, 2022 at 1:12 pm in reply to: Hand wash formulation

    what is the end pH?

  • Rockstargirl

    Member
    April 6, 2022 at 1:07 am in reply to: Happy birthday to Perry Romanowski 4-4

    Happy happy birthday!

  • Rockstargirl

    Member
    April 3, 2022 at 5:45 pm in reply to: My Formula Has the wrong “vibe”

    I am dying at these responses ???? tell them you charged it with moon beans and sang it a song. 

  • They work differently..BP creates an oxidized environment that p acnes does not do well in. SA breaks up the dirt and oil that clogs the pore. I think it depends on the type of acne you have as to which works for you. Also in Canada BP is only allowed at 5-% without rx. But they are not really easily compared. 

  • Rockstargirl

    Member
    March 15, 2022 at 4:56 pm in reply to: Essential oils and viscosity

    Looking to solubilize all that essential oil? 30% w/w of the total?  Nothing I know of will do that task. Best solubilizer I know is PolySugaMulse D9 from Colonial Chemical and you’d still need at least 3X that to do this.  Solution: tell your client this will be an anhydrous tonic and inform them the meaning of “anhydrous”; then you’ll have a clear path to success, and yes, pun intended there.

    Oh thank you! Honestly I was freaking out that I’m missing something. You made my day 

  • Rockstargirl

    Member
    March 15, 2022 at 2:37 am in reply to: Essential oils and viscosity

    Oh I’ve tried poly 20 instead of CME as well. Tonic must be clear. 

  • Rockstargirl

    Member
    March 11, 2022 at 7:44 pm in reply to: Favourite Film formers

    Abdullah said:

    Use guar Hydroxypropyltrimonium Chloride or Hydroxypropyl guar Hydroxypropyltrimonium Chloride

    Thanks!

  • Rockstargirl

    Member
    March 3, 2022 at 3:01 pm in reply to: Thickeners for Liquid Soap

    Are you ok with adding a little SLS? It will thicken with iselux 

  • Rockstargirl

    Member
    March 3, 2022 at 2:57 pm in reply to: Best Wax for Stick Cosmetics ????

    Cera bellina is dreamy.

  • Rockstargirl

    Member
    February 14, 2022 at 11:51 pm in reply to: Thickeners for Liquid Soap

    Agree to share formula, if you’re adding scent…that can break it as well. 

  • Rockstargirl

    Member
    February 14, 2022 at 11:24 pm in reply to: Salicylic Acid Regulations

    Canada allows up to 2% but consider labeling as well as claims. You need to add the warnings and they will check once you notify them.

  • Rockstargirl

    Member
    February 12, 2022 at 2:25 am in reply to: Natural Cosmetics

    I have. And the issue is not usually with the brand. They can be reasoned with. The issue is the retailers they sell to. Each has a no no list. They all vary so there is no one standard to formulate. These brands sell in these forums so must comply. And it sucks. For me. Lol 

  • Rockstargirl

    Member
    January 29, 2022 at 2:20 am in reply to: Owning the IP of a formula with a Korean Manufacturer

    What is a tech transfer?

  • Rockstargirl

    Member
    January 29, 2022 at 2:18 am in reply to: What natural oils work well with Retinol

    Dtdang said:

    Everyone is just saying the power of hydrogen (pH) is a water measurement. Oil/skin/concrete..technically has no pH. You need water to measure pH 

  • Rockstargirl

    Member
    January 26, 2022 at 1:34 pm in reply to: Aristoflex hot process

    I believe it’s a cold process emulsifier. It’s gelling so you add it to the water phase. It will hold about 5% oil. Sounds like you lucked out though! 

  • Rockstargirl

    Member
    January 19, 2022 at 2:36 pm in reply to: contract manufacturing agreement

    @Rockstargirl Thank you. I know they have one but I’ve also heard that it is a good idea to have my own. However, since only one will be signed, maybe on this one I’ll have to stick with theirs. I’ve inquired with two attorneys and they don’t do this kind of contract…

    I’m sure they can at least review your CM’s contract. It protects you both..but mainly states IP stays with lab 

  • Rockstargirl

    Member
    January 19, 2022 at 2:17 pm in reply to: The apple and ascorbic acid demonstration

    Pattsi said:

    So you are a microsoft?

    With hardcore marketing and enough time to create a cult, I could make people believe that you actually are an apple, the resurrection of the sin of Adam and Eve, if you want.

    Well joking aside, have you come to term with what you comfortable calling yourself?
    As much as I love cosmetic ninja but please don’t go with it definitely. 

    Well now I have to use it forever 

  • Rockstargirl

    Member
    January 18, 2022 at 7:35 pm in reply to: contract manufacturing agreement

    Usually they will have one. And also the ones to present you with the nda to protect you. I think any contract lawyer can draw one up for you tho 

  • Rockstargirl

    Member
    January 18, 2022 at 4:17 pm in reply to: The apple and ascorbic acid demonstration

    Perry said:

    First, it’s helpful to understand why apples turn brown in the first place. Basically, enzymes (polyphenol oxidase - PPO) oxidize phenolic compounds in the apple which then react with amino acids and proteins to make a brown color.

    PPO has a pH range at which it works optimally - pH 5.0 - 7.0. Below pH 3.0 it is inactivated. So, anything that is going to reduce the pH of the surface of the apple will significantly reduce the browning reaction. 

    LAA can work but so can citric acid, hydrochloric acid, acetic acid, glutathione, etc. It is a demonstration that can be easily fooled. Really, it is less a demonstration of the activity of the LAA and more a demonstration of the pH of the skin cream.

    Boom! Thank you! The videos drive me bonkers. Also I’m not an apple. 

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