Regular Expression to wrap phrases between commas with carets (^)

I have a Google Sheet with example information like this

Education, Conservation, Health, Human rights, Rural development, Poverty alleviation, Water and sanitation.--------------------Human rights, Democracy, Land reform, Entrepreneurship, ICT, Arts & culture

I need to quickly be able to wrap the phrases between the commas with a caret (^) in order for me to then import this sheet into a CRM.

Like this:

^Human rights^, ^Democracy^, ^Land reform^, ^Entrepreneurship^, ^ICT^, ^Arts & culture^

I've now read the Google Sheets documentation and looked and the Example Regular Expressions. I've now looked at numerous ideas on the stack sites and not finding exactly what I need.

Any thoughts?