Yes, you can as olive oil is completely natural and won't be harmful to your hair. It'll actually be really good for them :)
apricot oil or add some olive oil
No, it is not advisable to use hot oil on your hair after the keratin treatment.
figaro olive oil
Olive oil. Massage olive oil in your hair.... btw, it will also make your hair grow
Yes olive oil can make your hair grow longer and faster
I personally use olive oil to seal the moisture in my hair.
yes you can. but it wont as better than olive oil.
Olive Oil or Mustard Oil
no
Yes olive oil does help straighten curly or frizzy hair because I have very curly and frizzy hair and I put olive oil straight from the bottle in it all the time especially when I am going to straighten my hair.
Hair is made of proteins, mostly keratin. The cells are no longer vascular, but the outside of the hair shaft is porous, and can absorb water and oil.
I am not sure about mixing oil in to hair dye. Olive oil,and even coconut oil is great for your hair though.