Vitamin D also helps to regulate calcium and phosphorus metabolism, which are essential for bone health.

Serums are blissfully smooth, light oils that seal in moisture while delivering concentrated doses of active substances. The oil base doesn't taste sweet, but it allows the ingredients to actually enter the skin's surface, assuring their efficacy while also shielding it from the effects of daily life.

But your mouth is the entry point to your digestive and respiratory tracts, and some of these bacteria can cause disease.