No... if you're under age, possibly.. but then consumed HGH is strongly refuted for underage ppl because it interferes with natural HGH , stunting growth!..if you're overage, once your epiphyseal plates have been ossified, HGH can't increase you vertically. too much HGH has even known to cause acromegaly (where facial bone grow and hands grow but spine and legs don't due to ossification).