[citation needed] As a congresswoman, she focused on various health issues such as curbing fraud in PhilHealth and amending the Physician's Act among others.

She has also advocated for women's issues, including pushing for the passage of the Responsible Parenthood and Reproductive Health Act of 2012.

She played an active role in the enactment of the Cheaper Medicines Law and the Magna Carta of Women.

Garin graduated with a Bachelor of Science in Medical Technology at the Divine Word University in Tacloban.

Garin was elected as the first Filipino board member to the Parliamentary Network on the World Bank (PNoWB) during its Sixth Annual Conference held in Helsinki, Finland on October 21–22, 2005.