Hello dear Understand your concern. COQ act as anti oxidant, help improve sperm movement and quality and also increased testosterone level. First not the causes of low sperm count: Hormonal imbalance (low testosterone), Excessive stress, alcohol and consumption, diabetes, obesity, tobacco use, enlarged prostate gland, varicocele, genetic factor, radiation exposure, excessive heat exposure (tight garments, high fever, hot bath) So if any above cause is there take the treatment of it after proper investigation and diagnosis. Take following advice: For low sperm count: use assisted reproductive procedure to treat infertility like IVF and ICSI, testosterone replacement therapy, avoid excessive ejaculation, wear loose garments, avoid exposure to heat, Start exercising, losing weight, stop smoking and alcohol, healthy diet, anti oxidant: CO Q, vitamin E and C, avoid stress. For erectile dysfunction: Tablet viagra 50 mg taken about one hour before sexual activity, Tablet paroxetine 10 mg 30-40 min before sex,withdrawing the penis altogether, use more than one condom, use squeeze technique, do discussion with your partner that help in gaining psychological trust Hope this may help you Best regards Dr. Sagar