Options for adolescents and adults to self-prescribe Human Growth Hormone (HGH) supplements exist but we strongly advise against that approach. If an adolescent does not already have low HGH levels, taking HGH can have the opposite effect of prematurely closing the growth plates and limiting future growth. The best course of action is to consult with a pediatric endocrinologist and, if tests warrant it, let the doctor prescribe the correct type and dosage of HGH. For more information on HGH, and for height increase options for children, see Health : Children.
Use of HGH supplements by adults can produce acromegaly, a deformity in which bones that have not ossified (turned into bone) in adulthood, such as the jaw and facial bones, are induced to grow. This can result in a wide variety of symptoms and distorted appearances.
Several devices are used in combination with stretching exercises. It should be noted that a person's height is slightly variable. People tend to be taller in the morning and can be almost an inch shorter by the end of the day as their spine compresses from standing and sitting. Similarly, some exercises can stretch the spine but the results aren't permanent. If you measure your height before and after an exercise session, you may see a small change but it may not last to the next day. You may gain some positive results by continuing the stretching exercises every day. However, even then you may achieve a height increase of only a fraction of an inch. Only you can decide if that amount is worth the time and effort.