Avocado oil for the hair: Avocado oil can help tame frizz while promoting growth, shine, and more. The oil itself is rich in:
Antioxidants
Minerals
essential fatty acids
Biotin
Vitamins A, B5, and E
 
Treating your hair with avocado oil can moisturise, repair, and strengthen your hair. It is understood that minerals like those in avocado oil can help seal cuticle cells, which can prevent hair from breaking.
 
Precautions:
Overall, avocado is safe to use, but people who are allergic to avocados should check with their doctor. Using avocado oil may still cause side effects, even if you aren’t eating it. You should do a patch skin test before using avocado oil to rule out any allergies before using it on your hair.