Effects of Extremely Low Frequency Magnetic Field Exposure (50 Hz, 200 µT) on Cell Viability, DNA Damage and Micronucleus Formation of Human Skin Cells.
Research
RF Safe Research Library
Jan 1, 2026
This in vitro study tested whether 50 Hz extremely low frequency magnetic fields at 200 µT (rms) affect human skin cells (HaCaT). Using blinded, simultaneous exposure and sham-exposure for 2 or 24 hours, the authors assessed cell viability, DNA integrity, and micronucleus formation. The abstract reports no…
Why the 2025 “5G Skin-Cell Null” Actually Confirms the Density-Dependence of Both Pillars of the Unified Framework
Independent Voices
RF Safe
Nov 24, 2025
RF Safe comments on a 2025 PNAS Nexus study (Jyoti et al., 2025) reporting no detectable changes in gene expression or methylation in 5G millimeter-wave–exposed human skin cells. The post argues that this “null” result does not indicate biological inertness, but instead supports the site’s proposed “dual-pillar”…
Thermal and SAR-Based Limits for Human Skin Exposed to Terahertz Radiation
Research
RF Safe Research Library
Jan 1, 2025
This conference paper uses COMSOL Multiphysics simulations to evaluate thermal and SAR-based exposure limits for modeled human skin exposed to terahertz radiation (0.1–5 THz). The authors report negligible temperature increases at power densities consistent with keeping SAR below 1.6 W/kg, but note that higher power…
Impact of in vitro exposure to 5G-modulated 3.5 GHz fields on oxidative stress and DNA repair in skin cells
Research
RF Safe Research Library
Jan 1, 2025
This in vitro study tested whether 5G-modulated 3.5 GHz RF-EMF exposure affects oxidative stress and DNA repair in human skin cells. Under acute exposure conditions (up to 24–48h) at SARs up to 4 W/kg, the authors report no significant changes in ROS markers, no adaptive response to oxidative challenge, and no…
Assessment of spatial-average absorbed power density and peak temperature rise in skin model under localized electromagnetic exposure
Research
RF Safe Research Library
Jan 1, 2025
This numerical dosimetry study modeled localized RF exposure (3–30 GHz) in multi-layer human skin constructs including skin, fat, and muscle, with an added synthetic blood vessel model. Vascular modeling had negligible impact on peak spatial-averaged absorbed power density and a modest impact on peak temperature rise…
The modeling of the interaction of pulsed 5G/6G signals and the fine structure of human skin
Research
RF Safe Research Library
Jan 1, 2025
This paper uses advanced electromagnetic simulations of human skin microstructure to model exposure to realistic pulsed 5G/6G signals at 3.5, 27, 77, and 300 GHz. It reports localized, inhomogeneous absorption patterns linked to sweat glands and blood vessels, suggesting that treating skin as homogeneous may miss…
5G-exposed human skin cells do not respond with altered gene expression and methylation profiles
Research
RF Safe Research Library
Jan 1, 2025
This in vitro study exposed human skin cells (fibroblasts and keratinocytes) to 5G-band electromagnetic fields for 2 hours and 48 hours using a fully blinded design. Exposures were up to ten times permissible limits, with sham exposure as a negative control and UV exposure as a positive control. The study reports…
The response of human bacteria to static magnetic field and radiofrequency electromagnetic field.
Research
RF Safe Research Library
Jan 1, 2017
This study investigated how laboratory bacterial strains and skin bacterial isolates respond to static magnetic fields and radiofrequency EMF described as cell phone-level exposure. The authors report variable and inconsistent growth responses across species and across isolates from four subjects. They propose that…