My daughter did it at 5 months, at Cranial tech, too. She wore it only 7 weeks, b/c she had a growth spurt right at that time so it worked a little faster. We live almost to Denton, so it was a trek down there for the adjustment appointments- but TOTALLY worth it. She has a perfect little head now, and only needed one band. We stressed over doing it/not doing it, and I truly believe we made the right choice. Why give the child something else to be self-conscious about as a teen? Also- have it painted (the office can give you the name and # of the lady who does it), it keeps it from looking so clinical and shows your babies personality. good luck!