One More Reason To Throw Your Soap And Shampoo Away. Citral Is Vit A Antagonist

Discussion in 'Articles & Scientific Studies' started by methylenewhite, Jan 10, 2020.

  1. methylenewhite

    methylenewhite Member

    Joined:
    Aug 21, 2018
    Messages:
    691
    Gender:
    Male
    https://cancerres.aacrjournals.org/content/canres/48/24_Part_1/7038.full.pdf

    Citral is a GRAS2 status food and drug ingredient in widespread
    use as an additive to cosmetics and toiletries, and as a lemon
    flavor in foods. Citral is a simple, partially saturated, analogue of retinal, which may explain its ability to inhibit both steps in
    retinoic acid synthesis from retinol, since as an aldehyde it can
    act as a substrate for both the alcohol- and aldehyde-dehydro-
    genases involved.
    The ability of citral to inhibit retinol oxidation provides an
    experimental tool for testing the paradigm that retinoic acid is
    an obligatory intermediate in at least some aspects of vitamin
    A activity in the epithelia in vivo. Citral was proposed as a
    vitamin A antagonist in 1956 (7). Aydelotte (8, 9) studied the
    interaction of citral and retinol in whole organ cultures of chick
    epithelial tissues and concluded that citral had a competitive
    effect on vitamin A activity. Crocker and Sanders (10) observed
    that citral increased the degree of squamous metaplasia induced
    by benzo(a)pyrene in hamster trachea grown as expiants, pos
    sibly through an effect on vitamin A. Preliminary evidence thus
    suggests that citral can antagonize vitamin A activity in epithe
    lial tissues.
     
  2. ecstatichamster

    ecstatichamster Member

    Joined:
    Nov 21, 2015
    Messages:
    6,652
    Thank you. Good find. How common is citral in products?
     
  3. OP
    methylenewhite

    methylenewhite Member

    Joined:
    Aug 21, 2018
    Messages:
    691
    Gender:
    Male
    Could be listed as geranial, citral, lemonal or just aroma. "Aroma" could mean whatever mix of harsh chemicals. I hate this way they list things saying nothing. I believe it should be mandatory to list every ingredient not just abstract "aroma".

    I found it in my deodorant.
     

    Attached Files:

  4. Amazoniac

    Amazoniac Member

    Joined:
    Sep 10, 2014
    Messages:
    6,943
    Gender:
    Male
    Location:
    Not Uganda
    Why would you discard curative products?

    If they is supposed to stay on skin, the acceptable formulation concentration limit is usually lower than when they's meant to be washed off immediately, can be (for example) 10x less. There are regulations that demand the company to state on the label when these limits are exceed'd, so it's usually avoided.

    I don't know how much it is for citral, but if such limit is 0.1% and an average spray is considered to yield 0.1 ml, that could be 100 mcg of this toxin; and you know that ingredients are listed in decreasing order of concentration.
    Soaps and shampoos last a good while, a serving should be small without enough time to act (provided that there are no residues left).

    - High pressure processing of Australian navel orange juices: Sensory analysis and volatile flavor profiling

    upload_2020-1-10_21-0-0.png

    But there are reported cases of irritation from this junk, so I know it's real. I would be concerned the most about those that remain on skin.
     
  5. victormgc

    victormgc Member

    Joined:
    Sep 19, 2018
    Messages:
    13
    Gender:
    Male
    I'd love to stop using shampoo, but the oiliness is a pain in the ass.
     
  6. Regina

    Regina Member

    Joined:
    Aug 17, 2016
    Messages:
    1,851
    Gender:
    Female
    Location:
    Chicago
    I use this stuff.
    It is expensive but I use very little. Hair doesn't really dry out or get as oily between washes. So I just use some maybe 3 times a wk and otherwise nothing.
    New Wash Product
     
  7. Lewis Acid

    Lewis Acid Member

    Joined:
    Mar 26, 2019
    Messages:
    89
    I have been showering with just baking soda - just pour some into my hand and mix with water. Even cleans scalp/hair.
    Before I get in I use coconut oil anywhere I have dry skin.
    Are there any issues with castile soap - it seems like that would be OK?

    This interview talks about common toxins:
    Slow Death by Rubber Duck: The Secret Danger of Everyday Things
     
  8. LeeLemonoil

    LeeLemonoil Member

    Joined:
    Sep 24, 2016
    Messages:
    1,285
    Gender:
    Male
    It’s a common substance in many food plants and herbs, humans and animals eat it all the time and since millenia. It has its physiological role I’m sure. It has also useful actions.

     
  9. Rafael Lao Wai

    Rafael Lao Wai Member

    Joined:
    Jun 16, 2017
    Messages:
    1,021
    Gender:
    Male
    I use Johnson & Johnson's baby shampoo. It doesn't even have that much crap in it, and I don't seem to have an allergy to it, which isn't the case regarding these fancy shampoos that are advertised on TV. My hair feels way too oily if I don't use shampoo. Sodium bicarbonate for hair doesn't cut it in my case.

    For deodorant purposes though, sodium bicarbonate( USP, or at least P.A.) does a great job for me.
     
  10. nwo2012

    nwo2012 Member

    Joined:
    Aug 28, 2012
    Messages:
    1,002
    Youre joking right?
    Trusting a company thats been busted more than once for having carcinogens in their products is as dumb as it gets.
     
  11. Rafael Lao Wai

    Rafael Lao Wai Member

    Joined:
    Jun 16, 2017
    Messages:
    1,021
    Gender:
    Male
    Thanks!

    There is carcinogens in the water supply too, as well as in the air. Living in the city is already much worse than simply using something carcinogenic that you'll wash off in a minute or two. Also, it's still the only shampoo that doesn't give allergy. Means something. So that's that.
     
  12. Max23

    Max23 Member

    Joined:
    Jun 11, 2018
    Messages:
    138
    Gender:
    Male
    Any thoughts about Head & Shoulders shampoo. Been using it for years because it makes dandruff go away?
     
  13. burtlancast

    burtlancast Member

    Joined:
    Jan 1, 2013
    Messages:
    2,409
    Great catch.

    I've stopped using shampoos a decade ago already. Soap is a bit messy for washing hair, but at least it's safe.
     
  14. LeeLemonoil

    LeeLemonoil Member

    Joined:
    Sep 24, 2016
    Messages:
    1,285
    Gender:
    Male
    Guys. Citral is not bad.
     
  15. paymanz

    paymanz Member

    Joined:
    Jan 6, 2015
    Messages:
    2,649
    Gender:
    Male
    it only irritates skin but its ok if you eat this?! i ask it because it founds in orange and citrus fruits.
     
  16. lvysaur

    lvysaur Member

    Joined:
    Mar 15, 2014
    Messages:
    1,390
    I'm of the opinion that people wash their hands too much in general. They think grass is dirty, raw meat is dirty, etc.

    The only thing that is truly dirty is spoiled food, because it has a high bacterial load. The mere presence of bacteria is not important.

    Naturally this also means that high-traffic areas will tend to be dirtier, since they are frequented by people who may have bad bacterial health, or who may not wash their hands after going to the bathroom.
     
  17. thomas00

    thomas00 Member

    Joined:
    Nov 14, 2016
    Messages:
    582
    Gender:
    Male
    some beats and rhymes are dirty
     
  18. Jsaute21

    Jsaute21 Member

    Joined:
    Sep 3, 2016
    Messages:
    1,240
    Gender:
    Male
  19. kaybb

    kaybb Member

    Joined:
    Jun 24, 2015
    Messages:
    334
    Johnson’s and Johnson Baby shampoo is rare 4.
    Scale 1 best 10 worst, on EWG’s skin deep website.
     
  20. Rafael Lao Wai

    Rafael Lao Wai Member

    Joined:
    Jun 16, 2017
    Messages:
    1,021
    Gender:
    Male
    Heh, not terrible ranking. Thanks for the site.

    He's talking as if Johnson and Johnson's is the only company that puts crap in their products. Just because other companies weren't busted, it doesn't mean their product is safe. Not that I'm defending this particular brand of shampoo, I'm surely not gonna use it forever, and I'm looking for better alternatives, but using it for a little while to keep the oiliness away helps for now.
     
Loading...