Keratin

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Does Keratin Complex Have Formaldehyde?

Does Keratin Complex Have Formaldehyde? There’s also the Keratin Complex treatment, which touts itself as a personalized blowout with no downtime, and is celebrating its 10th year. The good news: They’re 100 percent formaldehyde-free. Do all keratin treatments contain formaldehyde? Many (but not all) keratin treatments contain formaldehyde, which can be dangerous if inhaled. Formaldehyde …

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