About
Dr. Hannah Liu is a board-certified dermatologist who earned both her bachelor's degree and medical degree from the University of Maryland, graduating with honors each time. She completed her dermatology residency at SUNY Downstate Medical Center in New York. After residency, she joined the University of Arkansas as an Assistant Professor in dermatology, teaching residents and medical students. She also built experience in private practice and telemedicine before returning to Chester County, Pennsylvania.
Dr. Liu founded Liu Dermatology in Exton in 2022. Her clinical focus spans acne, rashes, pediatric dermatology, skin cancer screening and removal, and aesthetic treatments including laser procedures and scar revision. She treats conditions ranging from eczema and psoriasis to melasma, hair loss, and vascular lesions. She is passionate about thorough, empathic, personalized care that patients can access promptly. Outside the office, she enjoys gardening, cooking, exploring the outdoors, and spending time with family.
Education & Training
Undergraduate
University of Maryland, Bachelor's degree (graduated with honors)
Medical School
University of Maryland School of Medicine (graduated with honors)
Residency
Dermatology, SUNY Downstate Medical Center, New York
Additional Training
Assistant Professor in Dermatology, University of Arkansas (teaching residents and medical students); experience in private practice and telemedicine
Certifications
Conditions Treated
Who is Dr. Liu right for?
Dr. Liu suits patients of all ages seeking a board-certified dermatologist for medical, surgical, or cosmetic skin concerns. Children and teens with acne, eczema, or warts benefit from her pediatric-friendly approach. Adults managing chronic conditions like psoriasis, melasma, or hair loss find a focused, unhurried visit style. Patients interested in aesthetic treatments, from laser resurfacing to neuromodulators, receive care from a physician with deep dermatologic training. Anyone who values transparent pricing and same-day access for urgent concerns will feel at home here.
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Frequently Asked Questions
Dr. Liu treats a wide range of skin conditions. Her medical scope includes acne, rosacea, eczema, psoriasis, skin cancer, melanoma, basal cell carcinoma, squamous cell carcinoma, warts, molluscum, vitiligo, melasma, hair loss, hyperhidrosis, rashes, contact dermatitis, seborrheic dermatitis, lichen planus, folliculitis, lupus, skin infections, keloids, nail abnormalities, cysts, lipomas, and vascular lesions such as hemangiomas and facial telangiectasias.
Yes. Dr. Liu holds board certification in dermatology. She earned her medical degree from the University of Maryland School of Medicine with honors and completed her residency training at SUNY Downstate Medical Center in New York.
Dr. Liu attended the University of Maryland for both her undergraduate and medical education, graduating with honors at each level. She then completed her dermatology residency at SUNY Downstate Medical Center in New York. She later served as an Assistant Professor at the University of Arkansas, where she taught dermatology residents and medical students.
Yes. Dr. Liu sees pediatric patients and approaches younger children with particular patience and care. The practice environment reflects that priority. She treats common pediatric skin concerns including eczema, warts, molluscum, acne, rashes, and infections.
Dr. Liu performs a broad range of aesthetic procedures. These include wrinkle injections with Xeomin, dermal fillers, chemical peels, CO2 laser skin resurfacing, radiofrequency microneedling, microneedling, Laser Genesis, vein treatment with the Excel V+, acne scar subcision, scar revision, earlobe repair, and cosmetic mole removal. She also uses the AviClear device for acne treatment.
Dr. Liu uses the Excel V+ laser, one of the most advanced vascular lasers available. It combines a 532nm KTP mode with two 1064nm Nd:YAG modes for treating veins, rosacea, and vascular lesions. She also uses the AviClear device, a 1726nm laser cleared for acne, and a CO2 laser for skin resurfacing. Liu Dermatology is among a small number of practices in Pennsylvania offering AviClear.
Dr. Liu uses several techniques to minimize discomfort. Options include Pronox anxiolytic gas, Zimmer cooling machines, topical numbing cream, local anesthetic, and a tapping technique. She selects comfort measures based on the procedure and patient preference.
Yes. Dr. Liu offers telemedicine appointments for appropriate dermatologic concerns. Patients can book online and select the visit type that fits their needs.
Dr. Liu formulated the Smootify skincare line, a medical-grade collection manufactured in an FDA-registered lab using pharmaceutical-grade ingredients. Products include an Advanced Retinol Treatment, Triple Defense Antioxidant Cream, Mineral Sunscreen SPF50+, Gentle Enzyme Cleanser, Mini Peel Pads, and more. Every product is hypoallergenic, fragrance-free, non-comedogenic, paraben-free, and cruelty-free.
Doctor profile last updated August 17, 2026