For stimulation of hair growth Red light (in the spectrum of 630-670 nanometres & low power) has been found most effective with good results. Hair comb laser is an effective treatment for hair loss & beneficial co-treatment for Alopecia.
The causes of hair fall are many, and usually, the hair does grow back with proper nutrition and hair care. In a small percentage of patients, when the hair fall persists, medical treatment in the form of topical lotions and vitamin supplements are recommended. However, these take up to two to three months to show results, and even after two months, there may not be a complete stoppage of hair loss. In such patients, treatments such as low-level laser are advised.