A girl friend was a waiter and had to ware a white shirt and bow tie. This was the only way she could get the body oil and makeup out of the collars.
Take the cheapest shampoo you can find and mix it 1 to 1 with water and spray the affected area and give it a quick rub. Wash not hot water. Don't use the dryer, lay them out on a towel to dry. The dryer, if they are cotton, will set any stains. It may take a few washes. She tried bleach but it didn't get rid of the oils, just bleached them. With new body oil and makeup, it just got bigger as it spread to the left over oil.
To get the polo collars clean rub them with the Cloros Bleach Pen and you will have white collars again. Be sure to rinse well after applying the Bleach Pen.
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