Jalapeno is often used in many alternative therapies to boost hair growth and restrict hair fall. There is an extremely effective hair tonic that can be made with jalapeno. You need to soak some chopped jalapenos in vodka for a few days. Then, remove the jalapenos and add castor oil to this infused vodka. Apply and massage it gently on your scalp at least twice a week. The jalapenos infusion works with the roots of your hair to increase stimulation of hair growth and stop hair loss. This hair tonic needs to be applied carefully, as the jalapeno spice can damage the skin or the eyes.