FHI Heat's most recent literature now reads "fine and chemically treated hair" should only use the lowest settings. So why pay $200 to $375 for a flat iron that only should be used at low temperature settings? Chemically treated means "permanently colored" or "relaxed" hair or possibly "permanently straightened" hair i.e. Japanese straighteners. Also, sometimes fine hair with texture in it needs some higher temperatures to smooth out, but using this particular technology based on the warnings may not a good option. Please see my article(s) on "direct heat" technology that has been around for generations.
This Croc iron had a lot of fine print. I tried to focus on two of the most interesting warning statements.
Look at second paragraph after PRECAUTION and the five lines down. It says "not to be used within five to six weeks after perming or tinting." That sounds like "chemically treated hair" should beware. This is the brand "Croc" literature. Please see my article(s) on "direct heat" as a hair solution option.
Now, look at second paragraph PRECAUTION and four lines down. It says "not to use with anyone who has had allergic reactions to straightening solutions or cosmetic products." Is it possible that the emissions from the iron could trigger an allergic reaction? Again, this is the brand "Croc" literature.
This Chi Turbo literature line item #8 mentions not to operate the iron where oxygen is administered. This may be a common warning for all hot tools . . . curling irons included. It is good to revisit the topic.
So after my attendance to countless trade shows, hair shows, and hair classes, the platform artists showcase "a show" . . . with new style and energy without mentioning any "fine print." Read your hair tools' literature. If the literature is old, then go to the store and look at the newest literature on the same brand. It should have the most accurate warnings. Remember ionic flat irons are only 10 years old or less. Just like most technological advances, it takes years to get it ready for offering to the general public, and it takes even a few more years to fully perfect. A great example is the laser eye correction. That procedure has come a long way within 15 years.