401 is a blue based pink red.
402 is a stunning medium semi bright coral/orange red.
The formula is a little more lipstick like in appearance than past like YSL products but the sheen is still there. The applicator is amazing and makes the process easier. It has a pointed end and point for lining. And the product wears beautifully, with no bleeding. It stains slightly and has a fruity scent.
Really lovely. Great shades and formula.