Gangnam hair salon root-volume CS perm: Heeol Hair
Heeol Hair is a hair salon near Sinnonhyeon Station in Gangnam, Seoul. Its ₩245,000 A-course perm package included a cut, root volume perm, treatment, and natural front SC curls for fine, damaged hair. Verdict: a worthwhile choice for easy-to-style volume if you can allow more than 4 hours.

