Home Cosmetic Science Talk Formulating natural air freshener

  • natural air freshener

    Posted by evauk on May 30, 2017 at 5:12 pm

    Could anybody help with a natural air freshener formula?
    I know that the  natural cosmetics are quite difficult to formulate, as their raw material definition or formulation rules could be interpreted!?
    Just wondering if those formulas are as challenging for natural household products, too!?

    Thanks in advance!
    Eva

    Bobzchemist replied 7 years, 9 months ago 4 Members · 13 Replies
  • 13 Replies
  • johnb

    Member
    May 31, 2017 at 7:49 am

    There are numerous types of air freshener. Which in particular are you interested in?

    How “natural” do you want it to be?

  • evauk

    Member
    May 31, 2017 at 1:50 pm

    Hello Mr.John,

    I truly appreciate your response, as I am treasuring experienced scientists.
    Here I am not sure about the “natural definition”!?Talking about AF, is this applicable as is for the “natural in cosmetics”?
     Recently watched Perry’s webinar and he seemed to give few options on this,learned a lot! Majority of cosmetics are submitting to FDA regulations and NSF- COSMOS-Ecocert-NaTrue-NPA-EWG standards.
    Which one could be extrapolated to the natural AF?

    Any water based formula would be useful,based on naturally derived or organic ingredients, but simple though.
    I have elaborated  before the alcohol(5%) in water based AF, using wetting agent (Surfadone LP-300) for our fragrance applications.
    This time the customer is interested in natural fragrances, therefore I need a natural AF formula.Suggestions needed, only!
    Also, would you recommend a manufacturer( co-packer) experienced to work with this type of formulas?
    I would be able to suggest it to the customer, as we are producing fragrances, not finished products…
    Regards,
    Eva

  • johnb

    Member
    May 31, 2017 at 2:04 pm

    You haven’t defined the type of air freshener you want. Is it a gel? a spray? reed diffuser? cellulose pad? ? ? ?

    It is difficult to suggest a manufacturer as most air freshener products are made in-house by such as SCJ, P&G, Benckiser and such (these people do not normally produce under contract). Also, taking this into consideration, it is very, very difficult to enter the A/F market.

    Are you in the UK (as your moniker suggests?)

  • evauk

    Member
    May 31, 2017 at 2:44 pm

    I am talking about a spray AF formula( I was mentioned water based before).
    My company is located in the Chicago area, but I am originally from Eastern Europe….still adjusting my way around
    Thanks!

  • johnb

    Member
    May 31, 2017 at 3:02 pm

    Water based does not, in itself, suggest a spray but, never mind that.

    A simple “natural” water based spray could be built around a solvent mix of ethanol, propanediol and water. The ratios of each to be worked out according to the properties of your natural fragrance.

    Propanediol (Zemea, Tate & Lyle, DuPont) is derived from corn by fermentation.

    Ethanol is usually naturally sourced.

    I am unable to suggest a manufacturer for your area as I am in the UK.

  • evauk

    Member
    May 31, 2017 at 3:17 pm

    Usually the SDA 39C is around 5%  and Fragrance required at 5%.
    Zemea could be around 2.5%, I guess.
     
    Is any natural preservative needed besides the 5% of ethanol?

    Also, the fragrance will have a naturally derived solvent (thinking of Triethyl citrate) and a naturally derived emulsifier, too!

    Here some testing will be done, as you said, depending on the nature of fragrance.

  • DRBOB@VERDIENT.BIZ

    Member
    May 31, 2017 at 3:26 pm

    I would add a preservative as 5% ethanol will not pass USP preservation.You cn add 1% geoguard ultra (gluconolactone/benzoic acid) or DHA at PH 5.You can get either from lonza

  • DRBOB@VERDIENT.BIZ

    Member
    May 31, 2017 at 3:38 pm

    GEOGUARD 111S used at 0.3-0.4% AT pH 2—6.5 will provide more flexaility

  • evauk

    Member
    May 31, 2017 at 4:41 pm

    Thank you, Mr. John!

  • evauk

    Member
    May 31, 2017 at 4:42 pm

    Thank you, DRBOB!

  • johnb

    Member
    June 1, 2017 at 7:32 am

    You will most likely need considerably more solvent (ethanol + Zemea) to dissolve that amount of fragrance compound in an aqueous base.

    Triethyl citrate is a good choice for a pefume diluent/solvent as it has a reasonably good solubility in water (5%) and it may act as a coupling agent.

    This reminds me of an air freshener marketed many years ago by SCJ which had a sweet “vapour rub” type of perfume and had a solvent system including an appreciable amount of triethylene glycol (TEG). The TEG was dispersed in the spray as relatively large particles which were supposed to “catch” dust, germs and viruses floating in the air before settling to the ground.

  • evauk

    Member
    June 1, 2017 at 1:52 pm

    I would like to keep the ethanol as low as possible, due to flammability concerns of DOT.
    That’s why I am thinking of an additional natural solubilizer besides Zemea.
    The TEC is a great natural fragrance solvent (expensive though) that is emphasizing the effect of fragrance in product.
    Thanks.

  • Bobzchemist

    Member
    June 5, 2017 at 1:31 pm

    Beware of CARB requirements, unless you don’t need to sell to California.

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