Three great products by TheBirdcareCompany : Liquid calcium, Multivitamins, and Guardian Angel which is a mix of specific vitamins, minerals and probiotics to boost your bird’s immune system. This trio is really good for birds that suffer from feather plucking or stress or that experienced “unhealthy” circumstances. Water soluble. Dosage is printed on the label but you are welcome to contact us for specific information. We will give you all the customer support you need to use the products correctly and efficiently. There are different sizes available for each product.