Ashley Tisdale has joined forces with Allergan for its Women Who Know campaign, 'inspiring women who are writing their own futures to take charge of their decisions when it comes to reproductive health and contraceptive options'.

The High School Musical star appears in an educational video promoting the Lo Loestrin®Fe contraceptive pill, 'encouraging women to ask questions and engage experts on subjects related to contraception ', and commented 'Women have a lot of options available to them when it comes to pregnancy prevention, and that comes with a lot of confusion, which is why it's important to be informed... I hope to use my platform to inspire women across the nation to open up a conversation with their healthcare providers - and join me in becoming a "Woman Who Knows"'.