Home Cosmetic Science Talk Formulating Review my leave in hair spray formula

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  • Review my leave in hair spray formula

    Posted by komirra on November 12, 2017 at 3:01 pm

    Hello, 

    this is my formula for a leave in hair spray for dry curly hair. I hav used it and liked it, but i wonder if anyone can suggest if I need to bring down the % of ingredients for the silicones. I think I may be using too much considering I also use silicones in my deep conditioner. Any suggestions? I was thinking amodimethicone could be effective at a rate of .5% instead and I could also reduce or eleminate CETAC-30 since it will already be some in the amodimethicone. any thoughts? 

    Btms-50 2%
    glycerin 4%
    Fractionated coconut oil 2%
    amodimethicone 1%
    cyclomethicone 2%
    dimethicone 2%
    CETAC-30  2%
    liquid germall plus .5%
    fragrance .5%
    water q.s

    komirra replied 6 years, 5 months ago 5 Members · 10 Replies
  • 10 Replies
  • komirra

    Member
    November 13, 2017 at 11:51 pm

    I was also thinking I could just drop the cyclomethicone and dimethicone and keep amodimethicone at the same usage. 

  • belassi

    Member
    November 14, 2017 at 12:25 am

    cyclomethicone? If that’s D4 or D5, you should review the latest restrictions on use.

  • komirra

    Member
    November 14, 2017 at 3:28 am

    its d5. I didn’t know there were any major restrictions on its use. I’ll check it out

  • antmagn

    Member
    November 14, 2017 at 10:23 am

    You can substitute water with flaxseed gel if its for personal use to get some hold. I’m protein sensitive but you can try them if you do not have problems.

  • chemicalmatt

    Member
    November 14, 2017 at 3:35 pm

    Drop the cyclomethicone and cut or drop the CETAC, since you allude to the fact you are using an analog to DC-949 amodimethicone emulsion (w/CETAC, Trideceth-7) you can just increase that emulsion for better effect.  What MW of dimethicone is there?  200CST works best in that format. Otherwise, not bad!

  • OldPerry

    Member
    November 14, 2017 at 4:47 pm

    There’s also a safety leave-on limit for CETAC.  If I recall correctly 0.25%
    https://www.evernote.com/shard/s1/sh/10f2cc12-73ff-4483-9d98-8670fcafe7f5/10f8e393611892a4c30a16b6f84cd1fe

  • komirra

    Member
    November 14, 2017 at 6:51 pm

    @Perry I saw that about CETAC. mine is at a concentration of 30% active ingredients. Does that mean I can only use .25%  of CETAC 30% active? Or does that mean I can have a total of .25% active CETAC in my leave in as a whole?

  • komirra

    Member
    November 14, 2017 at 7:09 pm

    @chemicalmatt I’m using dimethicone 350 since thats all that I had. I think you have a good point about just using more amodimethicone. you think increasing to 2%  would be enough? 

    I had a feeling to drop the cyclomethicone as well. seemed a bit unneccessary when I review the formula. good point about the CETAC. thanks!

  • OldPerry

    Member
    November 14, 2017 at 7:45 pm

    The limitation is in terms of % active ingredient.  So if the limit is 0.25% in your formula and you have a 30% solution, the max you could use of your solution is about 0.8%

  • komirra

    Member
    November 14, 2017 at 7:47 pm

    @Perry THANKS! makes so much sense to me now

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