Men who want to increase the size of their penisa developing gel for stronger erectionstitan xxl gel is for men who want a more powerful erection.the plants contained in the gel, such as ginkgo biloba can boost blood circulation in the penis and thus can produce a firmer and longer-lasting erection.all these natural ingredients can develop virility and self-confidence.the active ingredients- aloe vera can has a vaso-dilating effect- ginkgo biloba can increases the blood flow in the small vessels- arnica can acts on the subcutaneous blood circulationdosage:use before sex to improve the erection or apply daily to boost virility and increase penis size. for the best results, it is recommended to apply this gel for at least 1 month.