Forum Replies Created

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  • ozgirl

    Member
    December 7, 2022 at 11:00 pm in reply to: Salicylic acid and the kiddos…….
    In the EU you cannot use Salicylic acid in products for children under 3 (except for shampoo).
    I think this is due to the potential for salicylate poisoning in small children through dermal exposure.
    In Australia the most popular teething gels for babies contain choline salicylate.
  • ozgirl

    Member
    November 30, 2022 at 12:15 am in reply to: Zinc Pyrithione and Salicylic Acid React in Surfactant System
    Zinc Pyrithione turns blue in the presence of ferric ions.
    The background section of this patent has more information. https://patents.google.com/patent/US5883154A/en

  • Have a search for Ernest W Flick’s Advanced Cleaning Product Formulations books as they contains lots of basic cleaning product formulations from lots of suppliers. You can usually find a free pdf copy if you can’t access the original books. It can give you guidance of concentrations of standard ingredients by looking at other formulations. :)

  • ozgirl

    Member
    November 10, 2022 at 1:56 am in reply to: Does NACL do any benefit in liquid laundry detergent?
    What would be the be benefit of adding more than required to increase viscosity as you run the risk of hitting the other side of the salt curve.
    The best way to increase viscosity would be to increase the surfactant actives.
    Too much salt might also cause corrosion of metals in the washing machine.
  • ozgirl

    Member
    November 10, 2022 at 1:50 am in reply to: Getting along with SCI
    Not sure where the information about the flash point came from but on the  SDS I have it is listed as having a flash point of greater than 93 C. This is the cutoff value for flammable liquids so it just means it is not a flammable liquid.
    I usually just melt it around 70 to 80 C with the CAPB which works well.
  • ozgirl

    Member
    November 8, 2022 at 2:20 am in reply to: Emulgade PL68/50 not melting?
    It is probably the Eumulgin SG that is not melting rather than the Emulgade PL68/50. I think at best it only disperses in the oil phase.
    The Eumulgin SG can also be added to the water phase.
  • ozgirl

    Member
    November 1, 2022 at 9:09 pm in reply to: Car Dashboard and interior polish formulation
    From memory I think that Amor All is silicone based. There are probably patents available for this product that would give you that information.
    Definitely check out Dow for formulation guidance. Wacker Silicones might also have some information too.
    Try using a combination of low HLB and high HLB emulsifiers to emulsify paraffin oil. https://www.lankem.com/post/the-hlb-concept

  • ozgirl

    Member
    November 1, 2022 at 1:27 am in reply to: Lotion Bar Formulation

    mikethair said:

    ozgirl said:

    Are you certain it is cocoa butter. Cocoa butter should be a solid at room temperature. Melting point 34-38 C.

    OK, you have nailed the problem. The so-called Cocoa Butter has a melting point of 62 C. And once melted it won’t solidify on cooling in my AC formulating room (24 C).
    Have just spoken to the local supplier. He has no explanation.

    Strange. Hopefully a new supplier of Cocoa Butter will help solve the issue.

  • ozgirl

    Member
    October 28, 2022 at 12:55 am in reply to: Lotion Bar Formulation
    Are you certain it is cocoa butter. Cocoa butter should be a solid at room temperature. Melting point 34-38 C.
    I know you are in SE Asia. Is your lab too hot?
  • ozgirl

    Member
    October 26, 2022 at 10:57 pm in reply to: Pearliser seperated in our liquid soap prod. with time. Why??????
    You need to consider both the apparent density and viscosity when using the Euperlan pearlescents.
    This might be of interest.
  • ozgirl

    Member
    October 26, 2022 at 10:38 pm in reply to: gelling agents for glycerin??
    This might be of interest.
    I played around briefly years ago gelling glycerin with carbopols and it definitely thickened the glycerin. I never proceeded with any stability trials so don’t know how stable they were.
    From memory I also tried just dispersing the Carbopol (Ultrez 10?) in most of the glycerin and then combining the remaining glycerin with TEA before adding. This also worked.
    Lubrizol has lots of information available about how to use the carbopols.

  • ozgirl

    Member
    September 20, 2022 at 10:22 pm in reply to: Yellowing of essential oil containing product

    Are you storing it in an opaque bottle or amber bottle?

  • ozgirl

    Member
    September 20, 2022 at 4:04 am in reply to: Any answer will be welcomed

    1. Where are you looking to sell your product? Cocamide DEA is classified as a possible carcinogen by the IARC and is on the Prop 65 list in California. It is not an ingredient you want your customer to investigate.

  • ozgirl

    Member
    September 15, 2022 at 10:10 pm in reply to: Handwash for dry and sensitive skin

    You could also try something like Lamesoft PO65 (Cocoglucoside and Glyceryl Oleate) as it is a lipid layer enhancer.

  • ozgirl

    Member
    September 8, 2022 at 10:20 pm in reply to: Help with shampoo bar

    Another word of caution. Make sure you are wearing respiratory protection when using the SCI powder. It is very irritating to the respiratory system.

  • ozgirl

    Member
    September 5, 2022 at 10:20 pm in reply to: Reducing shine in paste

    Also “cup” is not a suitable measure. Use weights to ensure consistency between batches.

  • ozgirl

    Member
    August 30, 2022 at 1:45 am in reply to: Titanium and zinc as sunblock percentage
    Please do not attempt to make your own sunscreen/sunblock. These products are regulated as drugs in many countries for good reason.
    Here is a good summary of why it is not a good idea

  • ozgirl

    Member
    August 25, 2022 at 10:46 pm in reply to: Austrailian Gold SPF - Anhydrous?
    It contains water so it is not anhydrous.
    Sunscreen is classified as a drug in the US and it has different labelling requirements compared to cosmetics. The inactive ingredients are listed in alphabetical order and not by concentration. You will not be able to determine the amount used from the ingredients list.
  • ozgirl

    Member
    August 10, 2022 at 10:48 pm in reply to: Convincing client to use fragrance oil instead of EO

    You can mention that essential oils can vary by batch as the growing conditions change (drought / high rain etc) and this can cause differences in the scent. Whereas using a fragrance the scent is the same every time.

  • ozgirl

    Member
    July 27, 2022 at 11:33 pm in reply to: Consultant for Benzoyl Peroxide Shampoo & Chlorhexidine??
    I’m not a consultant but just wanted to offer a suggestion for your CHG product.
    When I was looking for Antibacterial Hand Wash formulations with cationic actives I came across a Lubrizol formulation that used Carbopol SMART 3000 polymer. It is reported to suspend mica as well as thicken.
    I never proceeded as I couldn’t meet the minimum order requirements but it might be worth a look.

  • ozgirl

    Member
    July 26, 2022 at 12:28 am in reply to: Fragrance problem in Soap

    You could try a fragrance fixative but it is probably easier to use a different fragrance. Avoid fragrances with lots of easily evaporating top notes.

  • ozgirl

    Member
    July 21, 2022 at 10:11 pm in reply to: Formulating shampoo bar help
    That is only a recommended usage rate and probably a guide for liquid products. Ask your supplier if they have a recommendation for solid bar products.
    The Cosmetics Ingredient Review concluded that sodium cocoyl isethionate is safe for use in rinse off products at up to 53%.
    Hope this helps.
  • ozgirl

    Member
    July 18, 2022 at 10:25 pm in reply to: Sulphate Free Shampoo Separating
    Can you substitute the SCI for Sodium Lauroyl Methyl Isethionate (SLMI)?
    SCI is not very water soluble and is preferred for solid products.
    SLMI is water soluble and is the preferred option for water based products.
  • ozgirl

    Member
    July 1, 2022 at 4:45 am in reply to: USA INCI listings for botanicals….
    I’m not from the US but we exported some products there a few years ago that we had to adjust labelling for.
    This might be useful.
    That label would not be correct because it doesn’t specify if it is an oil or an extract etc.
    e.g. Jojoba should probably be listed as Jojoba Oil or Jojoba (Simmondsia Chinensis) Oil.
    Is Rosemary the essential oil or the oleoresin or an extract.
  • ozgirl

    Member
    June 16, 2022 at 2:39 am in reply to: Reducing Xanthan Gum Tackyness
    At 3% Glycerin can also feel sticky. I would try reducing this first before you buy any new raw materials.
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