If you’ve met me, we’ve likely discussed hair products. It’s my job ... collection grew when I brought her a volumizing shampoo from Korean brand Dr. Groot over the holidays.

Sophie is a writer for InStyle, where she reports on noteworthy beauty products—including skin care, hair care ... I brought her a volumizing shampoo from Korean brand Dr.

Tip: After your regular shampoo and conditioner routine, finish with a cold water rinse to enhance shine and smoothness. Leave-in conditioners are a staple in Korean hair care routines because ...