I have a bit curly hair,i used lots of hair oils either natural oils like sesame oil,black seed oil or castor oil,but i came to find tht Dabur vatika oil is so nice,but i want to know is there any problem if i added any other oil to this brand oil?

also i tried lots of hair shampoos,but really none was helpful enough till i tried to use sunsilk shampoo,but i want to know which is better,sunsilk or herbal essences,actually both contain alcohol,and unfortunately iam from Egypt,so i didnot find either redken shampoo or anyother brands tht is specialized for curly hair without containing alcohol.

so is herbal essence better or sunsilk ,both have brands specialized for curly hair?