Br. Keratin Treatment: Can this be used as a precursor to Japanese Straightening?

They're BOTH chemicals NOT approved by the FDA.

Keratin are not approved by the FDA. Visit their website & search for it in their web. If you're thinking about the Brazilian treatment, there's a danger about using formaldehyde, a chemical that causes cancer. The FDA does not restrict the use of that chemical in cosmetics.

The official complaints against hair straightening products range from serious hair breakage and hair damage to serious scalp burns that may require an emergency room visit.

Relaxers Warning: they're not permanent, that's $300 - $500 each time you get them done. One I responded, she had hers done in March and this is now May when she posted it? It is a billion dollar business, and they do not give money back guarantee for damaged hair or hair loss due to 'abuse', in this case, cancer.

Google Permanently straightening hair warning, about 7,410,000 results (0.08 seconds) , more warnings during the last months. I've been posting about them since 2009. Canada had issued a public health warning regarding Brazilian Blowout and has stopped the distribution of their salon products; Ireland has also issued a recall. ~ Also published in Vogue Feb. 2011.

Despite this federal government warning and months of negative news reports, many salon owners admit they still use Brazilian Blowout and demand for the $200 to $700 labor intensive treatment remains high. ~ Fox news May 30, 2011