doi:10.1002/1097-0142(196605)19:5 3.0.CO;2-8
Still, it should be used with realistic expectations and not for instant whitening
There are also reports that rupture of the respiratory or intestinal epithelial barrier and weakening of other barriers, for example, the bloodbrain barrier or the vascular endothelial barrier, may facilitate the development of metabolic and autoimmune diseases [55, 81,82,83,84]
Other side effects can include vomiting, headache, and dizziness
Protect the vial from direct sunlight and moisture exposure at all times
Practical Ways to Stay Warm on Your Journey If you find that the cold is becoming a distraction, there are several practical steps you can take to manage it