I was wondering, is there a certain age that one has to be before having a Butt augmentation?

A: Minimum age for buttock augmentation

It is recommended for patients to be 18 years of age for most types of cosmetic plastic surgery, including buttock augmentation. One of the few exceptions is rhinoplasty (nasal surgery) which can be done on patients as young as 16 years of age.  These are guidelines outlined by the American Board of Plastic Surgery.

Please consult with a board certified plastic surgeon for more information on age requirements for cosmetic procedures.

Best wishes.