It is important for you to have realistic expectations when you are going in for any cosmetic treatment. It is the same with permanent beard shaping in Mumbai.
Since hair in the beard region is generally darker and thicker, the results are usually very good. People with darker skin tones will take more time to see results. Results are not good with grey hair and your dermatologist may suggest that you not go for the treatment in case they feel that your hair too grey or pale to get results. Overall, you would see a 70-100% reduction in hair growth after laser hair removal.
Even the hairs that do persist, would be much finer in nature and maintenance sessions at much longer gaps may be required for some people through life. It is still however, a method that saves you more time over traditional methods, considering the long gaps between maintenance sessions (if required).
Between 2 sessions, you need to allow time for the hair to grow back so that the follicles can be targeted. Hence, you need to wait for 4-6 weeks between sessions and this time frame slightly increases as the sessions go on.
After your sessions, you need to be careful about a couple of things. Look for signs of redness, irritation or changes in pigmentation. These are easily manageable and reversible, but you must inform your skin specialist for them to be able to do so. Please do not forget to apply sunscreen.