Jo Somebody

And how is it supposed to get into the blood stream when it's applied to the hair?

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My hair is in the 4s, low in porosity, high in density and coarse.

Love: QB - all of it, Bobeam - shampoo bars, Darcy's Botanicals - Pumpkin Seed Conditioner, Coconut Cupuacu Pomade, KBN - Shealoe Leave-in, Oyin - Juices & Berries, Kinky Curly - Knot Today, Ayurvedic treatments, my Denman and the cloud of kinky goodness on my head that I get to play with!

gardencurls

If the "henna" powder is contaminated with lead, some of the powder can accidentally be inhaled. When lead is inhaled, it enters the lungs, and then it can enter the bloodstream.

According to the sources I found, lead really can't be absorbed through skin, but chronic exposure increases the chances of some absorbtion. Lead can enter into the body through open wounds, like cuts or abrasions on the scalp. Other bacteria/pathogens definitely can enter the body through the skin, especially through wounds, and cause sepsis.

"Henna" (the stuff that's not really pure henna) that contains PPD is known to cause severe allergic reactions, particularly if used on skin. According to this book, pure Henna is not the cause of these documented problems: Clinical nephrotoxins: renal injury from drugs and chemicals - Marc E. De Broe, William M. Bennett, George A. Porter - Google Books

So the possible toxins could be PPD, Lead, both, and possibly other things. In any case, it's henna with additives that cause the problem, not pure, lab-tested, body art henna powder.

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Cleanse: Hair One with Argan Oil, As I Am Co-Wash, KC Come Clean
Rinse-out: KCKT, Cure Care Conditioner
Leave-in: As I Am Leave In, Miss Jessie's Pillow Soft Curls Lotion, KCKT
Style/Hold:Ouidad Climate Control Gel, KCCC,
4 Naturals Spring Back Custard,
Refresh: Shea Moisture Daily Moisture Mist

Q-Redew

Sayoon

Thank you