Most likely what is happening is your flat iron doesn't get hot enough to seal the hair to keep it smooth. You are using all the right products, it's probably just your flat iron. This happened to me with the Hot Tools Flat Iron. $30 bucks was a good deal, but it only keeps it smooth and nice for a little while before the frizz and fluff and curls would come back...Attention: All Flatironers with curly hair I need help?
u have to wash ur hair with any shampoo and conditioner. then blow dry it completely dry. then put kara-care hair lotion then straiten it . it should last 5 to 7 days
Is your hair curling up in areas where you sweat (like the nape of your neck)? You may need to do touch ups during the day. Or, you may need to consider having your hair relaxed a bit to get continuous smooth look. Also, try sleeping with a satin pillow or pillowcase. This is a known trick for waking up without bedhead, and avoiding wrinkles; the satin allows your hair and skin to move freely rather than get stretched and pulled during the night. Otherwise, you may need to upgrade to a Chi or Hai flat iron- my $30 flat iron worked great for a few months, but then not so much. I eventually decided to get a HAI, and it works much better.
For hair products, I always recommend Kiehl's silk groom or Aveda Hang Straight creme.
There is nothing wrong with what you are useing maybe you should ask you stylist/hair dresser for help but i have the same straightener and i also have to use my other one!!!! but i dont know!!! If you dont already try to blow dry it!!!! and amybe get another one to see if it is just the strightener!!!
Your hair may just be too curly to stay straight. If I were you, I would concentrate on eliminating the frizz and making your curls fabulous. The number 1 reason why curly haired people want straight hair is because they have a cut and styling technique not right for curly hair, and they think that the reason their hair looks bad is because of the curls. If you get the right technique and cut to make your curls outstanding, trust me, you will love them.