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doi: 10.1038/s41467-023-39020-4 19 OrtegaCFernandezASCarrilloJMRomeroPMolinaIJMorenoJCet al

At room temperature, the liquid solution can begin to degrade in a matter of days

Medical records were retrospectively reviewed and serum GPX-3 concentration was measured using serum samples collected and stored at diagnosis

This effect may result from the promotion of healthy blood flow and oxygen supply to muscles along with the support of cellular metabolism [9].* Exercise is associated with an increased production of ROS that can promote tissue changes that support muscle adaptation to exercise, but that can also contribute to muscle damage and soreness [1012]

Martins J

Or maybe its because NAC can help with glutamate in the brain (neurotransmitter)