Her supplements are expensive, however, worth it. I’ve been using her liquid collagen formulation for years(one of the secrets for my awesome skin). I buy a 30 ml bottle for $ 45 give or take, however, a small amount lasts me just under 2 months. I mix mine in water. My only issue is that I tried to contact them in regards to an inquiry and no one ever got back to my e-mails which sucked. I still love this product. I advise mixing it with a juice. I tried taking it straight up and it was gross.