Read these expert opinions and reader reviews before deciding if these hair treatments are right for you
January 15, 2010
Kristen Oldham Giordani | 63 COMMENTS
No. 2: How does a keratin hair treatment differ from Japanese straightening? The Japanese hair straightening treatment (a.k.a. thermal reconditioning) is permanent -- it actually changes the internal structure of your hair, removes all curl to create pin-straight strands and may damage hair. On the flip side, keratin hair treatments only last three to six months (depending on the product used and your lifestyle), they only soften curl (though they will straighten waves), eliminate frizz and can make hair healthier over time.