'If you are not, I will stop you and apply it myself,' author of rules wrote

They include use of Spanx 'so you don't have to worry about sucking in'

Wear Spanx 'so you don't have to worry about sucking in all the time or being bloated'.

Switch your glasses for contact lenses because 'poking your eyes is worth it just this once'.

And make sure you choose 'something cute and Alpha Chi' for your Facebook profile picture.

These are just a few of the terrifying beauty and social standards that the sorority girls of Alpha Chi Omega at the University of Southern California are told to adhere to during Polish Week.

Scroll down for video

Strict: The beauty and social standards that the sorority girls of Alpha Chi Omega (pictured) at the University of Southern California have to adhere to during Polish Week have been revealed in an anonymous email

The strict guidelines were revealed in an email, titled: 'Personal Development/Recruitment Info' and sent to Jezebel by an anonymous sorority girl, who has since graduated from the university.

They standards were written up and distributed to AXO girls in 2013. But to this day, the sorority continues to uphold such provisions, according to the news site.

For the duration of the seven days - the week before the sorority rush starts - girls must wear their hair 'curly or straight', with 'one normal color - no crazy ombre, no color you wouldn't see in nature'.

They should also don proper undergarments, have neat eyebrows ('I know "full" eyebrows are in style right now, but "full" does not mean "BUSHY" or "WILD") and apply a full face of make-up.

This includes the use of foundation, concealer, mascara, 'something pinky neutral for lips', blot powder, eyeliner, neutral eyeshadow, bronzer and blush, as well as 'neutral pink' nail varnish.

'If you are not wearing makeup, I will stop you and apply it myself,' the author of the guidelines wrote. 'I don't care if you're late for class I don't care if you're a sophomore or super senior. I will stop you.'

In their wardrobes, AXO girls should possess gold sandals, a seaglass top, a black dress, a red dress, a Tiffany blue necklace, nude wedges and nude heels if they wish to remain popular.

And in terms of their diets, they must 'stay away from fried and super sugary foods' and exercise.

'Being sick or feeling gross during recruitment sucks. Start eating healthy today and you'll feel so much better by the time polish week and recruitment starts,' the author states.

'Stay away from fried and super sugary foods. Your face will seriously brighten up. Also, exercise. Start now and you'll have way more energy and endurance for the long hours of recruitment.'

For a fuller list of the sorority's 2013 guidelines, see below: