If your hair isn’t too difficult to relax, you may want to consider using an olive oil perm which is a bit less harsh than the usual ones. The chemicals used in the perm process are quite strong and can damage hair follicles and roots, so you should use the mildest brand that will work on your hair.
Some hair is highly resistant to straightening, and an olive oil based perm will not be as effective for those people, but many will be just fine with it. You should use the solution that is just strong enough to work on your hair, yet mild enough not to cause damage.
Olive oil is a natural lubricant which also contains vitamins which nourish and moisturize it. It acts as a natural conditioning agent which will strengthen and condition damaged hair. If your hair gets extremely dried out or frizzy after perming and straightening your hair, try using the organic root stimulator brand with olive oil and see if it makes a difference.
Olive oil is an extreme conditioning agent for hair and skin, and can even be applied to the hair directly if it is extremely dry, damaged, or brittle and that is why it works quite effectively as an added ingredient to perm solutions. You may also reference our articles about olive oil therapy for your hair.