in an attempt to make a mild shampoo for myself, my formula below caused my face to become red/rashy/irritated the hours following my shower. It basically looks like i have a sunburn.
why is my formula causing this?
V1- red rashy face/“sunburn-like” cocamidapropyl hydroxysultaine 3% coco glucoside 12% total active 8ASM
glycerin 0.5% cetyl alcohol 0.5% coco oil 0.2% cationic guar gum 0.5% xanthan gum 0.5% salt 1.5% citric acid no preservative. i make it, use it, and dump it same day. (work in v small batches) |
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V 2 - rashy, very dried out face
hydroxysultaine 8%
coco glucoside 9%
SCI prill 2%
total asm 10-11
how are companies like Tom’s of Maine able to make mild, minimalist shampoos with
decyl glucoside+glycerin+salt+xanthan gum...yet my minimalist copy cat versions is just harmful to my skin?
thank you in advance!
Comments
i do think i have sensitization to hydroxysultaine possibly due to the impurities..it just makes me want to itch... so ill be sticking with just nonionics/glucosides.
im still trying to figure out how to make a glucoside-only formulation less irritating. any ideas? i have cationic guar gum already, and glycerol oleate though i notice it suppresses foam.
@Abdullah thank you for that! i didnt know that was the actual formulation list.
@Perry I tried Shea Moisture Baby Shampoo recently which lists Decyl / Sodium Lauroyl Lactylate as their top ingredients...I had basically no sensitization to that shampoo.
the difference between my shampoo and theirs is that mine has fewer ingredients, no claims ingredients, lower surfactant concentration... meanwhile theirs contains a whole list of extracts, oils..claims ingredients..
Perhaps i should add more claims ingredients to mine, it might help increase the mildness?
Try switching to Coco Glucoside from Decyl Glucoside. Decyl is know to cause contact dermatitis.
Ooops! ... try making a version w/o any Glucosides.
See website for details www.desertinbloomcosmeticslab.com
https://journals.lww.com/dermatitis/Citation/2017/07000/Alkyl_Glucosides__2017__Allergen_of_the_Year_.18.aspx
They convinced consumers that sulfates were bad and a more "natural" replacement is glucosides. So, they used them for their products. The fact that after a few years of using them glucoside were discovered to be significant allergens isn't surprising. We have decades of safe use of sulfates. We don't have decades of safe use of glucosides.
I too, have skin senstivitities. The one product I have found that causes no irritation whatsoever is Dove Sensitive Skin Creamy Body Wash ... you can also use it as a shampoo.
At the most basic of levels, there really is minimal to no difference between a body wash and a shampoo.
See website for details www.desertinbloomcosmeticslab.com
LOL! ... Well, there's truth to that Wendy's commercial "Parts Is Parts"
See website for details www.desertinbloomcosmeticslab.com