The role of vitamin C in male reproduction is mainly through antioxidant effects, improving male fertility. According to the expert consensus on male infertility, it is believed that excessive reactive oxygen species in semen can damage sperm through oxidative stress, and the antioxidants contained in seminal plasma have the effect of scavenging reactive oxygen species, which can prevent sperm damage. Vitamin C belongs to a class of antioxidants. Based on the above principles, expert consensus suggests that it can reduce oxidative stress damage, thereby improving sperm quality and male fertility. In addition, vitamin C is also used to prevent scurvy and treat chronic iron poisoning, cirrhosis and acute hepatitis. Long-term use of vitamin C can cause oxalate stones, large quantities of which may be diarrhea, headache, frequent urination, nausea and vomiting and other adverse reactions. Contraindications: Gastrointestinal ulcer patients, patients undergoing chemotherapy, patients with vitiligo can not be used, vitamin C can make insulin, antibiotics ineffective, can not be used at the same time. If you have a need for medication, it is recommended that you purchase the product from a regular medical institution after consultation with a specialist, and use the product in accordance with the doctor’s instructions.