Blush was a must-have beauty product in summer 2022. Brands like Benefit’s WANDERful World Silky-Soft Powder Blush Mini flew off the shelves at Ulta Beauty.    In recent months, beauty influencers have introduced “douyin blush,” a technique involving making a “V” shape on several parts of the face, in addition to under-eye blush, to mask dark circles and clear blush to sculpt and brighten the face. Unlike traditional blush, clear blush is devoid of color, pigment and shimmer. Instead, it...