Full on bold lips
Most Helpful Guy
I have read studies on human mating behaviour, which found that a woman's choice in lipstick changed according to the phase of her menstrual cycle.
By perhaps what is more than mere coincidence, the buttocks of the female howler monkey turn bright red when she is ovulating and ready to mate.
The same sort of thing happens in the human female.
When a woman paints her lips bright red, it is intended to reflect the colour of an aroused vulva and tell males that she is oestrous and ready to mate.
Those who had academic access to journals should be able to find plenty of material on this subject.
Most Helpful Girl
Personally, I don't wear it very often. But I tried a Stila matte liquid lip stick, and it just looked so classic, like a modern screen siren, bold but matte. :3 It was called either Fiery or Beso. I have NYX matte red lip colors, and they are very pretty too. But that Stila color :3 perf, it made me feel like a queen, and I think that's the power of the right red lip.