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. The bad news: They’re not quite as powerful as the toxic stuff.

Which keratin treatment does not contain formaldehyde?

Glycolic Acid – A Better and Safer Alternative A popular product that uses this ingredient as an alternative to Formaldehyde is the Cezanne Perfect Finish Keratin Smoothing Treatment.

Is Keratin Complex bad for your hair?

Keratin hair treatments can be an effective way to get smoother, shinier hair, but they usually involve the use of formaldehyde, which can lead to a range of side effects. While some manufacturers advertise products that are said to be formaldehyde-free, many of these still contain some form of formaldehyde.