Hello dear, First of all, please do not get influenced by any advertisement or health product which claim to boost your growth hormone & increase height...it may be harmful. Height of an individual is determined by Genetics, Environmental & Nutritional factors and Hormonal factors (most important the Growth Hormone secreted by pituitary gland in brain) An individual stops growing in height after the fusion of the Epiphyses (growth plates) of the long bones, which occurs by the age of 16-19 yrs in females. So...as you are 26 yrs old now, the fusion of epiphyses might have taken place. Under such circumstances, enhancement in height can be possible only through surgical measures. Kindly consult an Orthopedician for the same. Wishing you Good Health. Take care.