SHIITAKE /(Shee-Tak-Kee)/n./ 1. A specific type of mushroom or fungi, also called Lentinus edodes, that is native to Asia and possesses no roots, leaves, flowers, or seeds; /n./ 2. A symbol of longevity in China because of its immune-boosting properties, which have been used medicinally in the region for more than 6,000 years; /n./ 3. [...]

This column features weekly tips and advice from a revolving cast of industry leaders, on hand to discuss your beauty dilemmas, from blemishes to Botox. To submit a question, e-mail celia_ ellenberg@condenast.com.
I’m becoming increasingly obsessed with this age spot on my hand—and wondering if and when they’ll start appearing elsewhere on my body. What [...]