Using Too Much Heavy Glue: Slathering on thick layers of adhesive won't make your install last longer; it just leaves a cloudy, white buildup that shines in daylight. Always apply thin, even coats and wait until the glue turns completely clear before pressing down the lace.

Cutting Lace in a Straight Line: Human hairlines aren't naturally straight edges. Slicing your lace straight across creates a harsh boundary that sticks out immediately. Always trim in tiny, jagged zig-zag motions following your natural hairline shape.

Over-Bleaching the Knots: Leaving bleach on the base too long strips the hair roots, turning them an orange brassy tone and causing severe shedding. Process in short intervals and use a purple shampoo to neutralise warm tones.

Over-Plucking the Part: Yanking out too many strands creates bald patches instead of a natural gradient. Pluck sparingly using sharp tweezers, moving in random, diagonal directions rather than a straight line.