For anyone who blow-dries or straightens their hair most days, a keratin treatment can be life-altering.

“You shouldn’t expect the same salon results from home keratin treatments.

The keratin straightening procedure requires skillful and experienced hands to perform all the steps correctly.”

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Taking matters into your own hands is a give and take.

Coating the cuticle in this way is what leads to smoother, shinier, less frizz-prone hair.

(The alternative replacements are often a form of glyoxylic acid, btw.)

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And that’s one reason experts, including Spinatto, recommend avoiding formaldehyde-containing at-home keratin products in general.

Simply scan a product’s ingredient list to find out if it contains formaldehyde or formaldehyde releasers.

(Every bottle contains enough product for two to three treatments depending on the length of your hair.)

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It also straightens hair to a degree, with a 50 percent reduction in curls.

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