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Photons, described by particle and wave theories, are accepted not to possess mass, charge nor deflected by a magnetic field. During electron-spin-resonance experiments, hair containing melanin was 694 nm laser- irradiated. An ‘offresonance’ at laser-firing was observed in a time-scan at constant magnetic field, whilst monitoring laser-induced radical formation. It was hypothesized coherent photons interacted with the magnetic field. The radical g-value was invariant in successive field-scans, although the hair melted. Melanin, in the solid state in hair, does not exhibit temperature-dependent paramagnetism. 4.3 – 9.8 x 1018 photons in 1.2 – 2.7 J per pulse impact a 1.8 x 10-5 m2 hair surface area, and a mean 72% ‘off resonance’ signal-drop is determined from the time-scan, which translates to a field-shift of 4 G or 4 x 10-4 T. This is the same order of magnitude of hyperfine couplings, or field-shifts for absorption, due to proton nuclei (spin½) in the vicinity of the unpaired electron of the melanin radical. If the pulse is point charge (Nphotons. qphoton) impacting the solid hair surface area at the speed of light c, qphoton is 9.2 x 10-31 coulombs and q/e 5.8 x 10-12. The ESR observation is proposed to be spin-coupling of photons with charge and magnetism, with melanin radical unpaired electrons during the laser pulse. That photons carry charge is corroborated by repulsive movements observed between square paper pieces, comprising starch-based organic polymers, placed edges together within a plastic wallet and exposed to 4h+ sunlight. Movement is not detected in comparable experiments with heat alone.