FREQUENTLY ASKED QUESTIONS BY PATIENTS REGARDING HAIR LOSS. Q. How effective are hair spa treatments and hair packs ? How do they help ? A. The hair that grows out of your body is dead. You cut it does not bleed, Id does not pain. You cannot expect to apply proteins, herbals over dead hair to make it grow better. The packs and spa treatments can make your hair spa treatments can make your hair look better for a few days till the grooming effect lasts but it does not stop hair fall or strengthen the hair or improve hair growth..