Certain wavelengths of UV radiation can be safe for human skin within regulated exposure limits
the verdict
SUPPORTED
the evidence backs this
confidence 86/100
Multiple studies demonstrate that specific wavelengths of UV radiation, specifically far-UVC (200-235 nm), can be utilized safely within regulated exposure limits without causing significant DNA damage or carcinogenic effects to human skin.
Evidence for · 5
Wavelength‐dependent DNA Photodamage in a 3‐D human Skin Model over the Far‐UVC and Germicidal UVC Wavelength Ranges from 215 to 255 nm
2022 · cited by 45
Demonstrates that far-UVC wavelengths (215 to 235 nm) do not cause DNA damage in human skin models, supporting safe use within limits.
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More for · 4
No evidence of induced skin cancer or other skin abnormalities after long term (66 week) chronic exposure to 222-nm far-UVC radiation
2022 · cited by 2
Shows no evidence of skin cancer or abnormal pathologies in mice after long-term chronic exposure to 222-nm far-UVC radiation.
Intermittent low-intensity far-UVC irradiation inhibits growth of common mold below threshold limit value
2024 · cited by 1
Indicates that low-dose far-UVC irradiation inhibits mold growth while remaining below the threshold limit value for human safety.
Far-UVC in human skin: safety evidence and therapeutic potential in dysbiosis-driven dermatoses
2026 · cited by 0
Highlights that far-UVC limits penetration into viable epidermis and induces damage only in superficial keratinocytes without basal involvement.
Wavelength-dependent DNA photodamage in a 3-D human skin model over the far-UVC and germicidal-UVC wavelength ranges from 215 to 255 nm
2021 · cited by 0
Confirms via 3-D skin model testing that wavelengths between 215 and 235 nm create no measurable increase in epidermal DNA damage.