Portable home use UV phototherapy
Professional UV phototherapy
2018CDA: SIGMA Phototherapy Journey
2018 EADV: Topical and Phototherapy for Psoriaisis
Message From SIGMA CEO
2017 AAD Special Report: Phototherapy(Part Two)
2017 AAD Special Report:Phototherapy (Part One)
SIGMA was honored with ultraviolet...
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Sigma has a large number of patents and has been regarded as a "Shanghai Hi-tech Enterprise" since 2001. Our independent research and development for the SS-03 and SS-05 ultraviolet phototherapy units won us the “Shanghai A-level High-Tech Achievements Transformation Project" in 2002.
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