Forum Replies Created

Page 149 of 164
  • belassi

    Member
    January 31, 2015 at 5:21 pm in reply to: Animal testing - why the US won’t ban it any time soon

    Test new things on people, not animals.

  • belassi

    Member
    January 31, 2015 at 5:17 am in reply to: Pharmaceuticals vs Cosmeceuticals

    My personal favourite is “up to”. “Up to 50% reduction in your apparent age!”

  • belassi

    Member
    January 31, 2015 at 2:17 am in reply to: Microemulsion too thin

    The thought of jettisoning the classic 2 oz cosmetic jar for a spray bottle is quite interesting. There’s an immediate advantage in terms of preservation. I’ll have to research my packaging sources to see what the availability and costs look like. Thanks for the idea. I do like the sensorials that the silicone ester produces - days afterwards you can still detect the silky feeling.

  • belassi

    Member
    January 30, 2015 at 8:38 pm in reply to: Short Run Labels

    A local print shop should be able to produce quality labels for around $1 each.

  • belassi

    Member
    January 30, 2015 at 8:36 pm in reply to: Microemulsion too thin

    @Iaskedbetter: Thanks for that. Such a product had not occurred to me. Is there any benefit to the skin from a microemulsion rather than a regular one?

  • belassi

    Member
    January 30, 2015 at 4:58 pm in reply to: Microemulsion too thin

    Every microemulsion I’ve ever encountered was water thin, by the way. 

    Wow. I wish I had known this before.
    Is there any actual benefit to using a micro emulsion? I’m wondering whether to continue along that route or not. I guess if I do, I am going to have to either use a carbomer or an alternative thickener such as Glucamate VLT.
    Thanks for the explanation!
  • belassi

    Member
    January 30, 2015 at 4:49 pm in reply to: Stability and thickening of shampoo

    sodium cocoamphoacetate is a good surfactant and will easily emulsify oils. You are making the mistake of adding the oils too late. They need to be mixed with the surfactant BEFORE dilution.

  • belassi

    Member
    January 29, 2015 at 4:20 pm in reply to: UV nail gel

    Wow, nitrocellulose! Boom!

  • belassi

    Member
    January 29, 2015 at 4:18 pm in reply to: Stability and thickening of shampoo

    If the shampoo goes cloudy with essential oil, then the surfactant is not a powerful enough emulsifier. You are mixing the E.O. with the surfactant BEFORE dilution?

    I can’t advise regarding Plantapon LGC Sorb because I have never compared it to those others. It’s OK but not that foamy. Do you have access to Kao Chemicals range by any chance? They are excellent.
  • belassi

    Member
    January 29, 2015 at 1:28 am in reply to: Stability and thickening of shampoo

    The formula is not a salt thickening one so you’re wasting time and material adding salt. Besides, the whole idea of sulphate free is not only to eliminate sulphates but also sodium chloride.

    I don’t personally like CAPB much as a surfactant. It produces ‘creamy’ foam that becomes like snot at high percentages. 30% is way too much in my view; I wouldn’t use CAPB at any more than 10%. No doubt you like it because it is low cost and the other surfactants are not low cost.
    You’ve got 44% of surfactants in there and yet you still haven’t got a usable shampoo. That should tell you something. My own sulphate-free shampoo has 25% surfactants and a very adequate performance.
    I suggest:
    1. Use the DLS and SCG as the primary surfactants and cut down the CAPB to no more than 10%.
    2. Add 2% MEA (you will need to dissolve this in the hot surfactants) as a foam booster and thickener.
    3. Eliminate the NaCl
    4. Potassium sorbate 0.5% will make a perfectly adequate preservative and will not affect thickening as I suspect your present combination does.
    5. Remove the cyclomethicone and increase the polyquat 7 to 1%
    The remaining issue is the thickener and there has already been quite a lot of discussion about that in other topics. The MEA will help but you may want to use another thickener besides the guar gum.
  • belassi

    Member
    January 29, 2015 at 1:10 am in reply to: Pharmaceuticals vs Cosmeceuticals

    On the one hand, we have the admirable intent to protect consumers. On the other, we have a body that’s set in concrete and acts like a hand of death on innovative products. Acne treatments are a good example: the FDA appears to believe that only a very narrow range of products offer suitable treatment, and ignores evidence that other systems may perform better. In my opinion the US system is very, very over-regulated and is controlled by vested interests with deep pockets. The European system is far, far better.

  • belassi

    Member
    January 28, 2015 at 8:06 pm in reply to: Pricing issues - packaging

    No, we’re not at the point where we need a third party to fill. The annoying thing is that I know that large companies source their packaging at a fraction of what I pay.

  • belassi

    Member
    January 28, 2015 at 5:13 pm in reply to: Website E-Commerce provider

    We use Shopify because we needed support for credit and debit card payments.

  • belassi

    Member
    January 27, 2015 at 4:39 pm in reply to: Retinol OTC facility

    I’ll leave you to do the searching… 

  • belassi

    Member
    January 27, 2015 at 12:59 am in reply to: anti-hair-growth

    Hmmm. The extract is not too expensive at around $100 / kg and a usage rate of 5% implying a per product kilo cost of $5. I think I will formulate a test product, probably a women’s aftershave gel or cream that also inhibits regrowth.

  • belassi

    Member
    January 26, 2015 at 4:54 pm in reply to: Separation of Colors in Nail Polish

    I’d talk to an automotive paint manufacturer. It’s the same stuff!

  • belassi

    Member
    January 26, 2015 at 2:56 am in reply to: Why didn’t my lotion thicken properly?

    it’s the dimethylpolysiloxane. Your coconut oil was designed for the chip pan.

  • belassi

    Member
    January 26, 2015 at 2:51 am in reply to: How to add(dissolve) ascorbyl palmitate in oil?

    I honestly don’t know, perhaps someone else can help.

  • belassi

    Member
    January 25, 2015 at 7:29 pm in reply to: What is the best conditioning ingredient in wash-off formula?

    For sure. I always wear a mask when using carbomer, sodium hydroxide, etc.

  • belassi

    Member
    January 25, 2015 at 2:49 pm in reply to: What is the best conditioning ingredient in wash-off formula?

    It is an extreme inhalation risk.

  • belassi

    Member
    January 24, 2015 at 10:55 pm in reply to: Over neutralized carbopol solution

    Bummer. This sounds like a hand sanitiser you are making. I would set aside 10L of it and begin experimenting with 1Kg at a time to see what will work. Since carbomer is low % use I would begin by neutralising with citric acid to pH 7 then add more carbomer and then try re-neutralising with the correct amount of NaOH.

  • belassi

    Member
    January 24, 2015 at 5:34 pm in reply to: Hair Styling Emulsified-Gel

    There are conditioning agents such as Polyquart H81 that are pseudo-cationic and you might also try a water-dispersible silicone such as Silsense DW-18, to get the conditioning effects you want at the same time as not upsetting the ionic balance of the carbomer. Having said that, you might want to use Aqua SF-20 as the carbomer because it is able to tolerate a lower pH more suitable for the hair and scalp.

  • belassi

    Member
    January 24, 2015 at 5:23 pm in reply to: Over neutralized carbopol solution

    Probably but I am not sure. The logical thing to do is to take a one litre sample of what you have now, and try bringing it back to pH 7 and see what happens.

  • belassi

    Member
    January 24, 2015 at 5:20 pm in reply to: What is the best conditioning ingredient in wash-off formula?

    It is dangerous stuff to have around.

  • belassi

    Member
    January 24, 2015 at 2:28 pm in reply to: What is the best conditioning ingredient in wash-off formula?

    Diatomaceous earth is useful for something in cosmetics? I have a source of that, direct from the mine, very inexpensive.

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