Cayenne pepper infused in oils is by far, the cheapest growth aid!.
Capsaicin is the primary ingredient found in cayenne pepper. Check out out the post Growth Aids:Vitale Olive Oil 4-in-1 Growth Serum for more on capsaicin.
Cayenne pepper increases blood flow to the scalp. The increased blood flow strengthens hair follicles, which results in stronger hair roots–ultimately leading to thicker, healthier hair.
One way to use this treatment is to mix 1-to-2 teaspoons of cayenne pepper with 1-to-2 teaspoons of olive oil, creating a thick paste that you then rub into the base of your scalp and any balding spots. Massage the paste thoroughly into your scalp and hair and leave in for ten to fifteen minutes, covered with a shower cap or plastic bag. The olive oil will neutralize the heat from the cayenne. Remove cap, shampoo and rinse thoroughly. You can also leave the paste in your hair overnight if you wish to intensify its effect.
I have been using a mixture of cayenne pepper + castor oil and coconut oil for the past two weeks. Unfortunately, I cannot tell whether my hair growth rate has increased. However, I will take measurements of the hair length at the end of this month and continue using it for better updates.
Do not use this treatment if you are allergic to cayenne pepper. It could cause irritation and sores on the scalp. Rinse the mixture out of your hair thoroughly to reduce the risk of this irritation. Also, if you find that you become irritated by this product, reduce or stop usage and contact your doctor.