AME11226: The investigators are requesting an amendment to our original protocol in order to pilot test a six-month Minimal Maintenance Phase that will follow the six-month Intervention Phase. The barber will continue to monitor participants' blood pressure but the study pharmacists will limit their interaction to phone calls (vs. face-to-face visits as in the Intervention Phase). In addition, all study compensation for participants will be discontinued. The goal of discontinuing such compensation is to demonstrate that participants will continue to be proactive about controlling their blood pressure as a result of intrinsic motivation with continued social support from the barber and minimal phone follow-up with the pharmacist.