Home Cosmetic Science Talk Formulating Skin Which have Better NMF?

  • Which have Better NMF?

    Posted by Priya on May 28, 2014 at 3:28 am

    Which has better NMF value in glycerin, Na Lactate, Na PCA, Urea & propylene glycol?

    Ruben replied 9 years, 10 months ago 6 Members · 12 Replies
  • 12 Replies
  • nasrins

    Member
    May 28, 2014 at 3:48 am

    what is NMF value?

  • Priya

    Member
    May 28, 2014 at 3:54 am

    i.e. Natural Moisturizing factor

  • pma

    Member
    May 28, 2014 at 9:42 am

    I think you meant TEWL… I guess glycerin, but urea will add benefit that glycerin won’t. Usually you use multiple ingredients to obtain multiple benefits. 

  • bobzchemist

    Member
    May 28, 2014 at 10:21 am

    NMF:


    So, glycerin, Na Lactate, Na PCA, & propylene glycol are not part of the NMF at all.

    Only Urea would count as part of the Natural Moisturizing factors - there are quite a few.
  • vitalys

    Member
    May 28, 2014 at 10:42 am

    Exactly, Bobzchemist - Only Urea belongs to the NMF in the list you have mentioned. However, in this list I guess Urea has the best moisturizing capabilities. But it also depends on formulation you wish to create. Urea may be quite aggressive keratolytic in certain concentration.

  • pma

    Member
    May 28, 2014 at 12:33 pm

    Speanking in NMF… I’ve just read an interesting article: http://www.shiseidogroup.com/rd/uptodate/sc2011_02.html

  • Ruben

    Member
    May 28, 2014 at 2:06 pm

    I am confused. Harry’s Cosmeticology 8th edition (Table 13.2, pag 267) lists PCA and lactate as NMF

  • pma

    Member
    May 28, 2014 at 3:20 pm

    Ruben: yes, they’re.

  • vitalys

    Member
    May 28, 2014 at 3:35 pm

    I’m sorry, I wasn’t attentive, yes, any lactates are the part of NMF, since Lactic Acid itself is a part of NMF

  • Priya

    Member
    May 29, 2014 at 2:24 am

    Handbook of Cosmetic Science and Technology, Fourth Edition says water biding capacity of Na salt of lactic acid & PCA founds to be higher than that of glycerine & sorbitol. How we can justify this terminology?

  • bobzchemist

    Member
    May 29, 2014 at 9:48 am

    @Ruben - I do not ever pretend to be infallible. You are correct, and I answered too quickly - thanks for catching that.

  • Ruben

    Member
    May 29, 2014 at 12:59 pm

    @Bobzchemist. No problem. I, and I assume all of us, appreciate your input to almost every problem or question posted. I have learned a lot from your expertise.

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