The makeup choice has become a signature of the "Love Story" songstress', becoming just as iconic to fans as snake emojis or Polaroids.

Blue lips may indicate a type of cyanosis caused by lower oxygen levels in the red blood cells. Blue lips may also represent high levels of an abnormal form of hemoglobin in the bloodstream ...

while cool-toned skin shines with blue-based reds, just like the ones seen on Blake Lively or Scarlett Johansson. Prep your lips: Smooth, hydrated lips are a must for a flawless red lip.

Fashion historian Einav Rabinovitch-Fox points to the unconventional lips’ origins: “The invention of black and blue lipstick has ... better on camera than red ones,” she says.

while blood with low levels of oxygen is dark red or purple, which shows through your skin and mucus membranes. Blue lips can be an indicator of decreased oxygen in the blood which can be caused ...

vibrant lips are in this season. And no, not just your typical bright red (although the models at Alice and Olivia and Coach made a compelling case for it). We’re talking about shades of blue ...

while hints of blue or pink suggest cool undertones. If your lips seem a balance of both, you’re likely in a more neutral zone. Though many instinctively pair red make-up with neutral tones to ...

The cycle begins again as the blue blood returns to your heart. When red blood flows through the ... Your doctor may look at your child’s lips, tongue, and nail beds and may compare them ...

Blue lips are sometimes associated with extreme cold and can be worrying. The NHS says that cyanosis, which is when your lips turn blue or grey because you’re not getting enough oxygen ...