Sapien’s field does not open growth plates. If you’re past the point of puberty, you will see a minimal (think less than an inch) of height increase from Sapien’s field, if it works at all (as you correctly said, it’s listed as experimental).
If you are past puberty (early-mid 20s at the latest), you would need to look at other products (e.g. Quadible, Maitreya, subliminals, etc) in order to see significant growth.