Found a foundation stains on collar when you were about to take off the clothes!
Yup, it happens all the time...
Let me show you three quick ways to remove foundation stains from clothes in a minute!

1. Cleansing oil
Applying a small amount of cleansing oil on the affected area, then do the laundry as usual.

2. Skin toner
Using cotton pad to apply skin toner on the affected area, wait for a little while until the stain roughly comes out and deb the area with wet towel, then do the laundry as usual.

3. Shampoo
Applying few drops of shampoo on the affected area, blend it with finger tips,
rinse it before do the laundry as usual.

From above three ways to remove the stains from clothes...
Cleansing oil may work better! Give it a try!