Difficulty achieving detailed cuts,-Y.S. Park, Hair Cutting Comb No. 252, Hair snagging during styling,-Y.S. Park, Hair Cutting Comb No. 252, Lack of control with standard combs,-Y.S. Park, Hair Cutting Comb No. 252, Hand fatigue from long sessions,-Y.S. Park, Hair Cutting Comb No. 252.

Uneven cutting results,-Y.S. Park, Hair Cutting Comb No. 339, Green, Hair snagging and breakage,-Y.S. Park, Hair Cutting Comb No. 339, Green, Lack of control during precise styling,-Y.S. Park, Hair Cutting Comb No. 339, Green, Static buildup while cutting,-Y.S. Park, Hair Cutting Comb No. 339, Green․

Difficulty achieving both straight and curly styles with one tool,-Yohoolyo, Ceramic Hair Straightener, 2-in-1, Frizz and lack of shine during styling,-Yohoolyo, Ceramic Hair Straightener, 2-in-1, Heat damage from uneven heating,-Yohoolyo, Ceramic Hair Straightener, 2-in-1, Slow heating or inconvenient single-purpose styling tools,-Yohoolyo, Ceramic Hair Straightener, 2-in-1