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Most injection site reactions resolve within hours
Some individuals may experience temporary bruising, redness, or mild discomfort at the injection site
In a double-blind, placebo-controlled study involving infertile men, researchers found that a daily 600mg dose of NAC improved several semen parameters, including sperm motility, while also improving markers related to oxidative stress and reproductive hormones.23 That's particularly noteworthy because Doctor's Best provides the same 600mg dose used in that study
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