Forum Replies Created

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  • johnb

    Member
    April 19, 2017 at 1:44 pm in reply to: Turning a body butter into a shaving cream

    If you don’t need a softened beard there is little point in using a “shaving cream”. Just use your original product.

  • johnb

    Member
    April 19, 2017 at 12:56 pm in reply to: Turning a body butter into a shaving cream

    What do you mean by “too soapy”? The soap is present in these products as a functional ingredient and that is to soften the hair in preparation for the razor. Synthetic detergents do not do this successfully as you will see by observing the ingredient lists of products currently on the market.

    You asked for our thoughts, I gave mine - after a number of years involved in formulation and manufacture of this type of product.

  • johnb

    Member
    April 19, 2017 at 8:49 am in reply to: Sodium carbonate and surfactant mixture

    The precipitation/separation you are seeing is the surfactant being “salted out” by the high ion concentration.

    There should be a better reason than avoiding precipitation qualify a particular surfactant to be used in a product.

    Lauryl glucoside has very poor detersive power in comparison to ABS. If this is not of a concern to you then there is little reason for it to be present. Merely sell a sodium carbonate solution.

  • johnb

    Member
    April 19, 2017 at 6:56 am in reply to: Sodium carbonate and surfactant mixture

    Alkylbenzene sulfonates are the surfactants of choice in laundry products. The detersive properties of most other types is normally much inferior to ABS.

    A problem you will most likely encounter if you are marketing this as a liquid is precipitation/separation of the surfactant if the concentration of the carbonate is high.

  • johnb

    Member
    April 19, 2017 at 6:49 am in reply to: Turning a body butter into a shaving cream

    There is a lot more to shaving products than merely adding any old surfactant into any random cosmetic base.

    Check on the LOIs of marketed products before you proceed much further.

    Shaving creams are much better formulated with a soap as primary surfactant to soften the beard hair. This softening is not achieved with synthetic materials.

    Even aerosol shaving foams have a soap as primary surfactant and those that do not are on the market for a very limited time.

  • johnb

    Member
    April 18, 2017 at 1:39 pm in reply to: Water for cosmetic formulating in the U.K

    There are also distilling machines available on eBay such as:
    http://www.ebay.co.uk/itm/750W-Pure-Water-Filter-Purifier-Distiller-for-Beauty-Dental-Medical-Machine-vv-/132069069069?hash=item1ebfee110d:g:muoAAOSw5IJWcRfO

    I seen them being used and they look quite good.

  • johnb

    Member
    April 18, 2017 at 1:15 pm in reply to: Water for cosmetic formulating in the U.K

    If you don’t want to buy a deioniser then a Brita water filter will do a similar job (but not quite as efficiently).

    Remember that neither of these methods will sterilise the water so you should boil it before use.

  • johnb

    Member
    April 18, 2017 at 7:30 am in reply to: Pet products formulation

    What should I do for a start?

    Go to your local pet superstore and check the LOI of the products that you are interested in emulating.

    I have kept dogs most of my life. They all lived to a ripe old age and were quite healthy. I bathed them very occasionally using the same shampoo that I used on my own hair but also made sure that they had plenty of access to swim in rivers, lakes and streams to allow fresh, clean water to offer its benefits.

    I doubt that fiddling about adjusting fractions of a pH level will worry your pet very much.

    From a sales & marketing aspect, pet toiletries are often a sideline in the product ranges of the large pet food manufacturers (OK, they may be contracted out for production). Is there a market for a new (therefore unknown) independent?

  • johnb

    Member
    April 18, 2017 at 7:03 am in reply to: Sensitive Skin Toner Safety Question

    Citric acid will NOT act as a preservative except at extremely high concentrations - much greater than would be acceptable in a cosmetic product. A proper preservative is essential. Don’t be influenced by bloggers, scaremongers and similar know-it-alls about the  dangers of any and all preservatives. A water based product without a preservative can be much more dangerous than all preservatives put together.

    If there are products on the market without preservatives, as you suggest, let them carry on and wait for the hefty lawsuits when something goes wrong.

  • johnb

    Member
    April 18, 2017 at 6:49 am in reply to: Nail polish

    A Google search will reveal what you want to know.

    Keywords: nail polish manufacturers in usa

    Please note that I am not being sarcastic in offering this reply - as I have been accused recently when offering Google links. I am only trying to help.

  • johnb

    Member
    April 17, 2017 at 9:20 am in reply to: Neither Castor oil nor Finsolv will blend ingredients

    Equal parts of your three ingredients seems a gross excess of limonene in a product of the type you are formulating. The odour will be overpoweringly strong.

    Another thing - have you considered the long term effects on surfaces by spraying relatively high quantities of oils (be that castor oil or Finsolv) or of cationic detergents (the quat) on to surfaces (even if they are wiped away afterwards).

    I also see problems in being able to successfully spray a high viscosity material like castor oil.

  • johnb

    Member
    April 17, 2017 at 7:25 am in reply to: Neither Castor oil nor Finsolv will blend ingredients

    My main concern with your query was the problem with obtaining a homogeneous mixture - which you will never achieve with the mix that you are using.

  • johnb

    Member
    April 17, 2017 at 7:18 am in reply to: Nail polish

    Wherever you are located, you really should find out a lot more about your product before you even think about making or marketing.

    Nail polish is particularly problematic. Anything much larger that a shot glass size of production will need fire department approval.

    Because of the specialised nature and safety problems associated with nail polish it is normally restricted to a few specialist blenders to manufacture - even the very large cosmetic companies contract out like this.

    Having said that, it is possible - even preferable - to buy nail polish bases for colouring yourself. This saves a long process of dissolving the resins and does absolve you of requiring to know quite so much about the product. It does not cut out the fire safety requirement, though.

  • johnb

    Member
    April 17, 2017 at 6:59 am in reply to: Oxalic acid

    Why use oxalic acid? It is toxic and thus not entirely suitable for domestic use. It is also unsuitable for a number of surfaces e.g marble/lime cement/concrete where the acid reacts with the contained calcium and ruins any decorative or polished surface.

  • johnb

    Member
    April 17, 2017 at 6:51 am in reply to: looking for raw materials equivalent !

    I am sure that exact replacements for the two surfactants are not necessary.

    The requirement for auto dish wash rinse aids is that they contain a suitable acid material to neutralise and residues of the strongly alkaline cleaning  detergent and a compatible, very low foaming surfactant to prevent streaking.

    Some ingredient disclosures for modern rinse aids are given here in this article:

    http://dishwashers.reviewed.com/features/what-the-heck-is-rinse-aid-and-why-do-i-need-it

  • johnb

    Member
    April 16, 2017 at 2:26 pm in reply to: Resveratrol

    I don’t doubt that resveratrol may be listed by paulaschoice and that it may be used as a cosmetic ingredient but the uses being advocated in this thread are distinctly referred to medicines and, as such, do not fall within the remit of cosmetic chemistry.

  • johnb

    Member
    April 16, 2017 at 1:16 pm in reply to: Alcohol Free perfumes and deodorants

    My previous comments still apply.

    What reasons do you have for not using alcohol?

    BTW it is not a good idea to post your email address on an open forum. All sorts of undesirable bots and people may be lurking ready to collect from the unwary.

  • johnb

    Member
    April 16, 2017 at 8:10 am in reply to: looking for raw materials equivalent !

    I’m fairly sure that this EXACT grade is not essential to your needs and a substitute PEG/PPG block polymer or even a completely different nonionic surfactant could be made.

    What is the product under consideration?

  • johnb

    Member
    April 16, 2017 at 7:27 am in reply to: looking for raw materials equivalent !

    You may be able to find an equivalent Pluronic material in the BASF listings.

  • johnb

    Member
    April 16, 2017 at 7:16 am in reply to: Resveratrol

    My concern is that the investigative work on resveratrol is directed at pharmaceuticals:

    T-Resveratrol is a cox 1 inhibitor and thus an anti-inflammatory

    its cytotoxic effect on p. acnes is demonstrated in multiple studies

    Even the initial post here states that the intended use is as

    potential ingredient for a melasma treatment.

    Key word there being “treatment”.

    References to Dermatology Times are made which emphasises further the medical or potential drug, rather than cosmetic, use of the material.

    All of this is research work and out of the scope of the definition of a cosmetic product.

    I appreciate that Belassi is in Mexico where normal definitions of a cosmetic might not apply but the thread has been resurrected by others - one of whom states:

    I’m not a cosmetic chemist and I’m new to formulating with tRes.

  • johnb

    Member
    April 15, 2017 at 3:15 pm in reply to: looking for raw materials equivalent !

    I don’t think you will find that Plurafac SLF18 is a Surfadone LP100 equivalent.

    Plurafac is a name give to BASF alcohol ethoxylates - which doesn’t fit with the identity of Surfadone LP100 which is N-Octyl-2-Pyrrolidone, as I stated previously.

    Colonial CNDF is equivalent to Meroxapol 311 which identifies as peg/ppg-21/7 copolymer - a POE/PPG block polymer detergent for which the commercial term by BASF is Pluronic (not Plurafac).

  • it’s an exfoliating moisturizer, many use them as facial moisturizers to
    get smoother skin and get the benefits of AHA’s (stimulated collagen
    and ceramide synthesis).

    The problem I always consider with multipurpose compositions such as you are advocating here is that the job they do is frequently inferior to the job that can be done by two separate products.

  • johnb

    Member
    April 15, 2017 at 9:26 am in reply to: Resveratrol

    Is there any evidence that resveratrol or pterostilbene (photoisomerised or not) have any definable activity in a cosmetic product?

  • johnb

    Member
    April 14, 2017 at 3:26 pm in reply to: Water Based Pomade - Preservative & Emulsifier Advice

    I wasn’t suggesting buying the ingredients via Amazon/eBay but the finished O’Doud product which I see available on both.

  • johnb

    Member
    April 14, 2017 at 3:00 pm in reply to: looking for raw materials equivalent !

    Sorry, I don’t but there is information to be found on Google

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