A real before-and-after from a client with heavily bleached, gradient-coloured hair — one of the more challenging cases for Japanese acid straightening. The damage was significant, but the result speaks for itself.
The Case: Bleached Gradient Hair with Significant Damage
💬 KENJI — Ginza, 23 years
“This client came in with significant damage from bleaching and colour history. With heavily bleached hair, the approach has to be precise: formula strength, processing time, and iron temperature all need to be calibrated to the actual condition. The key is assessing the hair honestly before committing to treatment.”

Questions about your hair? Send a photo first.
Ginza / Yokohama · English · 中文 · 23 years
What the Treatment Involved
- Treatment: Japanese acid straightening — formula for bleached, gradient-coloured hair
- Cut: Length adjustment to remove the most damaged ends
- Hair: Significant damage from multiple bleach and colour sessions — gradient from dark roots to light ends
What to Know About Straightening Damaged Hair
- Assessment first — the degree of damage determines what is possible and which formula is safe
- Acid formulas (pH 4–6) are significantly gentler on colour-treated hair than older alkaline formulas
- “I was told I can’t get straightening on bleached hair” — this depends on the actual condition, not a blanket rule. Photos tell the real story.
Related: Bleached Blonde Hair Before & After (German client) → · How to Book in Tokyo → · Does Straightening Damage Hair? →
KENJI HAIR LOUNGE — GINZA & YOKOHAMA
Send a photo. Get an honest answer.
English · 中文 · One-on-one · 23 years
Ginza: Tue-Sun 8:30-18:30 · Yokohama: Every Monday 8:30-18:30

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