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1. No Pharma company will ever describe his/her product not to be authentic, and as you know 90% of knowledge is attained through visual (eyes) stimuli and this is the reason of showing their products on television.
PS. don't fall for marketing gimmicks.
2. since by the age of 20 growing ends of long bones are completely closed/ fused thus no possible further growth in terms of height is possible.
PS. If you've completed
puberty you aren't likely to grow taller. However, if one enters puberty late, they will usually also complete it late
3. Height of an individual also depends upon the height of the parents [genetic], if they have short stature, their siblings can/may have the same height.
PS. There is no such magic Ingredient in any -pathy which can increase the length of bones [after puberty is achieved]
4. eat a healthy, balanced and nutritious diet and practice pranayam,yogasanas, back exercises that stretches the spine which helps in increasing height by 1”-2” inches.
PS. Contact with a yoga expert for various Yogasans which can be adopted and practiced in daily routine.