However, keratin treatments, due to the ingredients involved and the high heat required to do the technique, may actually cause more damage to hair. ... For ...

However, keratin treatments, due to the ingredients involved and the high heat required to do the technique, may actually cause more damage to hair. ... For ...

However, keratin treatments, due to the ingredients involved and the high heat required to do the technique, may actually cause more damage to hair. ... For ...

Tests show that keratin treatments contain unsafe levels of formaldehyde and other chemicals. Formaldehyde is a known cancer-causing chemical. It can also ...