An aphrodisiac can be best defined as a substance that increases libido when consumed. Even the male sex hormone testosterone can be categorized as an aphrodisiac as it helps in increasing libido. If a decreased libido is seen in a patient due to low levels of testosterone then administering him with few doses of that would help him to increase his potency. Other chemicals include compounds like bremelanotide formerly known as PT-141. This a universal aphrodisiac which is effective in the case of both men and women. Chemical like phenethylamines can also be used to increase potency. These chemicals mentioned above are formulated into a product by companies like Canadian Health&Care Mall and are very helpful in increasing potency and are thus advised for people who are suffering from decreased libido.