Dr. Ratchathorn Panchaprateep (Dr Bonus, Pancharaprateep)

Ratchathorn Panchaprateep is an associate professor in the Division of Dermatology, Chulalongkorn University, and practices at Absolute Hair Clinic 1. The clinic describes itself as one Bangkok branch with two doctors who each respond to inquiries directly 4. She is a board-certified dermatologist with a PhD in dermatology, her doctoral research focused on hair follicle stem cells and transplant regeneration 1. Her clinic hours there are limited: none Monday or Friday, evenings Tuesday/Wednesday, a Thursday morning slot, and weekend afternoons 1. The clinic states it has been dedicated exclusively to hair transplantation for 17 years 4.

Per the clinic, services span FUE/FUT transplants, eyebrow/mustache/beard transplants, scar transplantation, and non-surgical options such as PRP, laser therapy and Rigenera Activa 2. For FUE it uses the Trivellini system with flared-rim punches sized 0.8-1.00mm, stated to allow up to 4,000 grafts a day 3. The doctor draws the hairline and makes all incisions; a technician extracts the grafts, assistants place most with implanters, and the doctor places some and reviews the finished work 3.

The clinic does not publish per-graft or package prices in English; its rescheduling policy notes the per-graft price may change to the rate applying on the new procedure date 5. It accepts Visa and Mastercard with a 2.5% surcharge, Thai baht cash, or the WISE app; American Express is not accepted 4. Booking requires a deposit the clinic states is non-refundable under any circumstances 5.

Patients are asked to email photos and video of the thinning and donor areas with their history and goals, and to state a preference between the clinic's two doctors 4. Rescheduling is allowed twice within a year of the deposit: free with 30 days' notice, a $200 fee (7,000 THB) for 15-29 days, and treated as a cancellation under 14 days 5. Post-op care includes five days of wound care, hair washing and laser therapy, plus optional hyperbaric oxygen 6. The clinic cites graft survival of 80-95%, not guaranteed, and offers no results guarantee or refunds 4.

She is a Diplomate of the American Board of Hair Restoration Surgery (2013) and a Fellow of the International Society of Hair Restoration Surgery (2016), also listed as a member of the Medical Council of Thailand, the Dermatological Society of Thailand, and the American Society of Dermatologic Surgery 1.