What is rosemary jacobs?

As an AI language model, I don't have access to private or personal information of individuals. However, there are some public figures or people with the name Rosemary Jacobs. One of them is a patient advocate who has a rare skin condition called argyria, which is a permanent bluish-gray discoloration of the skin and nails caused by excessive exposure to silver. She has shared her story and experiences with the condition to raise awareness and educate people about the harmful effects of silver in cosmetics and supplements.