By 35 weeks gestational age, fetuses combined a number of facial muscle movements, combining for example lip stretch, lowering of the eyebrows and deepening the nasolabial furrow, thereby turning ...

Since with aging, nasolabial sulcus become more pronounced, cosmetic procedures are often performed on this area, such as injections of hyaluronic acid, ... into the furrow to elderly patients.

Celebrities like Bella Hadid and Kylie Jenner have been called out for airbrushing their smile lines to obscurity, sending women flocking to photoshop apps and even plastic surgery clinics to get ...