Won Jong Oh

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BACKGROUND A previous 6-month study using a more highly concentrated novel hyaluronic acid (HA) filler, PP-501-B, found nasolabial fold (NLF) improvements with increased tolerability. OBJECTIVE We investigated the long-term efficacy, durability and safety of PP-501-B in the correction of NLFs. METHODS Subjects completing the initial six-month study were(More)
BACKGROUND Forehead wrinkles are the result of contracture of the frontalis muscle and the skin aging process. Currently, hyaluronic acid filler and botulinum toxin are the main materials used for correction of these wrinkles. In addition, polydioxanone (PDO) thread has also been applied for this treatment. OBJECTIVE In order to evaluate the efficacy and(More)
BACKGROUND Photodynamic therapy (PDT) has been used for acne, with various combinations of photosensitizers and light sources. OBJECTIVE We evaluated the effectiveness and safety of indocyanine green (ICG) and intense pulsed light (IPL) in the treatment of acne. MATERIALS AND METHODS A total of 1,213 patients with facial acne were retrospectively(More)
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