Forum Replies Created

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  • johnb

    Member
    September 21, 2016 at 12:42 pm in reply to: Solubilizer polysorbate 80

    I think that you will have to increase the amount of solubilizer to enable a clear almond oil/water mixture.

    Personally, I’ve never had much success with polysorbates (doesn’t mean that you won’t). I find other surfactants (e.g castor oil derivatives) more suitable.

  • johnb

    Member
    September 21, 2016 at 11:38 am in reply to: Solubilizer polysorbate 80

    Which oil are you trying to solubilize?

    Have you tried any other solubilizer e.g PEG40 hydrogenated castor oil?

    What is the purpose of your solubilized oil?

  • johnb

    Member
    September 20, 2016 at 12:07 pm in reply to: How can I lower the PH in cold processed soap?

    I see that you are trying to make a soap based shampoo bar.
    Remember that soap produces an unpleasant precipitate (scum) in hard water which, trapped in hair, can be very difficult to remove and give very much unwanted dullness, and a lack of a feeling of cleanliness.

    I notice that a large portion of the USA has hard water. Not everyone has a water softener.

  • johnb

    Member
    September 20, 2016 at 7:36 am in reply to: Stick Deodorant slip issues

    If you are unable to include solid ACH then, as I have previously stated, you have no chance of making a stick of the type you want.

    From what you have said about your ACH supplier, I would be very concerned about their capabilities and knowledge.

    Shellsol used to be called deodorised kerosine and shouldn’t smell significantly. It is available in several grades distinguished by the boiling range. Similarly with Isopar.

    Triclosan is the subject of lots of investigations into its safety and is likely to be banned worldwide. I suggest you don’t look at it further.

  • johnb

    Member
    September 20, 2016 at 7:23 am in reply to: please clarify this debate for non-chemist…

    NaOH is converted to NaCO3 on exposure to air. Excess NaOH in soap converts to NaCO3 and may appear as a “bloom” on the surface of soap after long standing. It can sometimes look like mould (mold) growth.

  • johnb

    Member
    September 20, 2016 at 7:18 am in reply to: How can I lower the PH in cold processed soap?

    You can best find out about Good Laboratory Practice and Good Manufacturing Practice via Google.

    Google is your friend.

  • johnb

    Member
    September 20, 2016 at 7:13 am in reply to: Raw Materials to liquefy soap

    You ought to formulate using synthetic detergents rather than soap for this purpose.
    I doubt that you will get a successful product by using soap.

  • johnb

    Member
    September 19, 2016 at 2:30 pm in reply to: Rebatching perfume to make a room spray

    Mainly to the fragrance.

    A fine fragrance is traditionally created with top, middle and base notes.

    Air fresheners do not require a full middle and base note character and so unless these are modified from the original fragrance you do not get the best effect. In some extreme instances, you can get quite unpleasant results (this is rare, though!)

  • johnb

    Member
    September 19, 2016 at 7:28 am in reply to: Stearic Acid and Saponification.

    If you are making a traditional type vanishing cream, then yes. The stearic acid is partially neutralised.

  • johnb

    Member
    September 19, 2016 at 7:20 am in reply to: Stick Deodorant slip issues

    You are missing a fundamental point of my comment, above.

    The commercial stick formulations I quoted are totally water free. They do not have added water and the ACH active is added as a dry powder. You will never achieve a formulation resembling a marketed product by proceeding along the path you are following.

    The cyclomethicone/cyclopentasiloxane are volatile solvents and evaporate after application. It is not replaceable by dimethicones, except for very low molecular weight types such as hexamethyldisiloxane which is even less likely to be available in your country.

    I know work has been done on substituting cyclomethicone with isoparaffin solvents but nothing reached the marketplace, as far as I know. Isoparaffins are marketed as Shellsol (Shell) and Isopar (Exxonmobil). As these are products of the oil industry, they may be available where you are.

  • johnb

    Member
    September 18, 2016 at 6:12 pm in reply to: Rebatching perfume to make a room spray

    Room spray/air freshener perfumes are formulated differently to those used for colognes or for personal application and merely diluting a fine fragrance type of perfume oil, as you rightly hint, will not be very successful in an air freshener.

  • johnb

    Member
    September 18, 2016 at 6:05 pm in reply to: Magnetic Face Mask

    Considering the huge costs involved in taking out a patent I think that patenting a pointless gimmick such as this doubtful.

    You never know though!

    CN105288856

    The invention discloses a novel magnetic therapy beauty mask, and relates to the field of beauty and skin care products. A temperature regulating device is injected into an insulating and waterproofing interlayer; a plurality of magnetic therapy stones are uniformly arranged on the face cline face of a mask main body; a switch button is arranged on the mask main body; a power plug and a storage battery device are connected to the lower part of the back face of the mask main body; and two ends of the mask main body are respectively fixedly connected to a head jacket device. The mask is convenient to use; by injecting the temperature regulating device into the mask and by adding the magnetic therapy stones on the mask, the mask not only offers a feeling of icing in summer but also provides an effect of heating in summer; by virtue of magnetism and the power supply device, effects of magnetic therapy health care and pulse massaging are also achieved; under the effect of ice therapy, skin is more delicate and feels more comfortable in summer, and through hot therapy, the mask promotes blood circulation and expels toxins; by heating, pores are slightly opened so as to promote the absorption of nutrient substances; and meanwhile, the mask can achieve pulse massaging on acupuncture points in the face, so as to meet use demands of various people.

  • johnb

    Member
    September 17, 2016 at 8:07 am in reply to: Deoxyarbutin

    In Europe the Scientific Committee on Consumer Safety states:

    Does the SCCS consider, on the basis of the provided scientific data, the use of
    deoxyarbutin to be safe for consumers in cosmetic products in a concentration up to
    3% in face creams?
    Although on the basis of the provided scientific data the use of deoxyarbutin as such
    can be considered safe for consumers in cosmetic products in a concentration up to
    3% in face creams, hydroquinone will be formed at levels which raise concerns with
    regard to the safety of such products during life-cycle of the product (e.g. storage
    conditions and stability under in-use conditions). Therefore, the overall conclusion of
    the SCCS is that the use of deoxyarbutin up to 3% in face creams is not safe.”
    (Emphasis mine).

    See ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_183.pdf

  • johnb

    Member
    September 17, 2016 at 7:30 am in reply to: Recommendation for Viscosity Meter

    Brookfield or Brookfield-type vicometers are pretty much standard especially as they can be adapted to measure a very large range of viscosities.

  • johnb

    Member
    September 17, 2016 at 7:23 am in reply to: Magnetic Face Mask

    Google “reduced iron” or “reduced iron powder”

  • johnb

    Member
    September 17, 2016 at 7:19 am in reply to: Suspending of pearlizing agent in liquid soap

    What are you using for the pearl effect?

    It is common practice to use EGMS (ethylene glycol monostearate) in detergent products to give the pearl effect.

    It is easiest to add a preformulated pearl concentrate for you to get a consistent product batch-to-batch and to save on heasting the EGMS to melt and dissolve. Many or most detergent manufacturers supply a pearling agent (or, at least, the material to make one).

    Mica based pearling agents (which I suspect you are using) will almost never work in a detergent product.

  • johnb

    Member
    September 16, 2016 at 1:11 pm in reply to: FCO vs. Caprylic Capric Triglycerides

    PEG-7 glyceryl cocoate is similar to PEG-7 Caprylic/Capric Glycerides but it has a much wider alkyl chain distribution. This can make it prone to clouding at RT between different suppliers (I’m in the UK so that may not apply where you are).

    The materials have the odd property of negative water solubility this is to say, they are less soluble at high dilution than they are in concentrate. So, you can have a water soluble bath oil which clouds in the tub.

    PEG-40 hydrogenated castor oil is a solubiliser for oils (fragrance concentrate) in water. In conventional liquid detergent products it has the unfortunate property of killing viscosity.

  • johnb

    Member
    September 16, 2016 at 12:52 pm in reply to: Color lock

    The think I would do here is disguise myself as a consumer and ask the manufacturer.

    You can have a lot of fun this way!

  • johnb

    Member
    September 16, 2016 at 12:48 pm in reply to: Sodium Borate

    I think Unilever anticipated this balls up some years ago and replaced the sodium borate in Pond’s Cold Cream by sodium hydroxide.
    It is still basically a similar product with the alkalinity to neutralise the acids in the beeswax now coming from the NaOH.
    I notice they now include Carbomer in the formula - that’s certainly something Galen didn’t put in the original.

  • johnb

    Member
    September 16, 2016 at 7:58 am in reply to: Stick Deodorant slip issues

    My view is that you should return to basics and compare the formulation you have with those of commercial products e.g

    Speedstick Power:
    Aluminum zirconium tetrachlorohydrex gly 16%, elaeis guineensis (palm)
    kernel oil, stearyl alcohol, cyclomethicone, C12-15 akyl benzoate,
    PPG-14 butyl ether, hydrogenated castor oil, hydrogenated soybean oil,
    PEG-8 distearate, fragrance, behenyl alcohol.

    Right Guard Extreme:
    Cyclomethicone, Stearyl Alcohol, Aluminum Zirconium Trichlorohydrex Gly,
    PPG-14 Butyl Ether, Talc, Hydrogenated Castor Oil, Myristyl Myristate,
    Parfum, Cetyl Alcohol, Arachidyl Alcohol, Linalool 

    Dove Antiperspirant Stick:
    Cyclopentasiloxane, Aluminum Zirconium Tetrachlorohydrex GLY, Stearyl Alcohol, C12-15 Alkyl Benzoate, PPG-14 Butyl Ether, Hydrogenated Castor Oil, Parfum, Dimethicone, Polyethylene, Helianthus Annuus Seed Oil, Steareth-100, BHT, Tocopheryl Acetate, Citric Acid, Alpha-Isomethyl Ionone, Benzyl Alcohol, Benzyl Benzoate, Benzyl Salicylate, Butylphenyl Methylpropional, Citronellol, Geraniol, Hexyl Cinnamal, Hydroxycitronellal, Isoeugenol, Limonene, Linalool.
    (Italicised are perfume components)

    Notable by its absence is water.

  • johnb

    Member
    September 16, 2016 at 7:32 am in reply to: Solid Cleanser formulation

    The INCI listing that I gave is incorrect - although it is the same one repeated several times by different retailers.

    I only cursorily  looked over the list before making my post. I now see it is incorrect/incomplete - so much so that I am stumped as to what it could really be. There are some things there that are just plain wrong. For example, salicylic acid in the same product as sodium hydroxide - one will neutralise the other and render their inclusion pointless.

  • johnb

    Member
    September 16, 2016 at 7:14 am in reply to: FCO vs. Caprylic Capric Triglycerides

    Is this to use up your current stock of Caprylic/Capric Triglycerides or do you want to utilise its positive properties?

    If the latter then PEG-7 Caprylic/Capric Glycerides will give a very pleasing effect in a body wash.

  • johnb

    Member
    September 16, 2016 at 7:04 am in reply to: Raw Materials to liquefy soap

    Heat?

    What is it you want to achieve?

  • johnb

    Member
    September 16, 2016 at 7:02 am in reply to: (ask for help) Waterbased pomade

    There doesn’t appear to be enough oily material (non-volatiles) to give a lasting hold.
    Old types (e.g Brylcreem) have a large content of mineral oil.

    Brylcreem declared formula:

    Aqua, Paraffinium Liquidium, Cera Alba, Hydrogenated Rapessed Oil,
    Petrolatum, Glyceryl Stearate, Parfum, Limonene, Linalool, Citral,
    Geraniol, Benzyl Alcohol, Lanolin Alcohol, Calcium Hydroxide, Behenic
    Acid, Hydrogenated Castor Oil, Hydrolyzed Wheat Protein, Hydrolyzed
    Wheat Starch

    Note: Limonene, Linalool, Citral,
    Geraniol are part of the perfume.
    Hydrolyzed Wheat Protein, Hydrolyzed
    Wheat Starch are not part of the original formula.
    I think also that behenic acid replaces stearic acid from the old formula.

  • johnb

    Member
    September 15, 2016 at 2:46 pm in reply to: Quest for the Missing Salicylic Acid

    How are you measuring this loss?

    Remember that adjusting pH with sodium hydroxide will remove free salicylic acid.

    What is the function of this product? Usually a formulation containing salicylic acid requires the free acid, not its sodium salt.

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