The "best" face mask depends entirely on your skin type and concerns. Look for masks with ingredients specifically targeting your needs, such as salicylic acid for acne or hyaluronic acid for hydration. Reading reviews and considering your skin's reaction to specific ingredients is important.

There is no single "best" face mask for everyone. Consider your skin type (oily, dry, sensitive, combination) and what you want to achieve (brightening, clarifying, hydrating). Then, research masks with ingredients known to address those specific needs.

Korean face masks often incorporate innovative ingredients and technologies, focusing on hydration and brightening. Their popularity also stems from the emphasis on multi-step skincare routines and the availability of diverse mask types for various skin concerns, often at affordable prices.

This question is ambiguous. If asking about preventing COVID-19 infection, face masks like N95s and surgical masks are effective when worn properly over the nose and mouth. If referring to skincare during COVID-19, consider hydrating masks to combat dryness from frequent hand washing and sanitizing.