First of all, there is no such thing as height growth product or supplement. You need to take a well balanced diet. Your diet should include plentiful amounts of all seasonal fruits and vegetables (especially spinach, broccoli, turnips) along with eggs, milk, curd, nuts and seeds and oatmeal. Also, taking mineral supplements containing calcium (with vitamin D), magnesium and zinc for some duration may help.
In addition, you are advised to start doing more physical activity (running, swimming, or any other sport). You can also perform yoga asanas and stretching to lengthen your shortened muscles and giving them a stimulus to grow. some of them are jump and skipping rope, toe touch, pelvic stretch, cobra stretch, triangle pose, mountain pose, sun salutation (surya namaskar), mountain pose and hanging from the bar.