hi teacup: there are many different sources of glandulars on the internet ,as well as many different types of glandulars ,source natural has a mult- glandular that has several types of glandulars in one formula I have used it and recommend it , it cost about $11.00-15.00 per bottle depending on which online retailer you purchase it from just remember to start with a low dose and slowly increase the dose as needed and once they have done there job you can stop them with out any problems ,unlike synthetic hormones which require that you wean off them very slowly to avoid complications