A Chinese client in their 20s, currently living in the United States, visited me in Ginza because their short, coarse hair was difficult to control. The natural wave created bulk and made the overall shape hard to keep neat.
For this case, I used acid straightening to soften and smooth the wave while intentionally preserving volume at the roots. The goal was not a flat, rigid finish, but a clean short-hair silhouette with natural dimension.

Client profile and treatment details
- Client: Chinese, in their 20s, currently living in the United States
- Hair type: Coarse and naturally wavy
- Main concern: Hair was difficult to control and would not sit neatly
- Service: Acid straightening
- Design goal: Smooth the wave while preserving root volume
- Location: Ginza, Tokyo
- Time: Approximately 2 hours
- Price: ¥27,500
Before: coarse hair with wave and excess bulk
The hair had strength and a visible wave pattern. On a short style, this can make the outline expand and become difficult to manage, especially around the crown, sides, and nape.

Why I preserved volume at the roots
Short hair can look flat if every section is straightened with the same tension. I adjusted the treatment and iron work so the curl could be controlled without pressing the root area tightly against the scalp.
This balance is especially important when the client wants easier daily styling but still wants the haircut to keep its shape. The result should move naturally rather than look overly straight.

After: smoother, controlled and still dimensional
After the two-hour service, the wave and unwanted bulk were reduced, the surface looked smoother, and the short silhouette became easier to control. Importantly, the roots were not flattened, so the finished style kept natural dimension.
Every head of hair reacts differently. The appropriate formula and technique depend on hair strength, previous color or bleach, and the desired finish. You can read more about my English-speaking hair straightening service in Tokyo and check the service and pricing guide.
Considering acid straightening in Tokyo?
If your hair is coarse, wavy, or difficult to control, send clear photos of your current hair and any color or bleach history. I can advise whether acid straightening or another approach may be more suitable.
Ask Kenji about your hair on WhatsApp
See more real results in the Before & After gallery.
Results vary depending on hair condition, treatment history, and home care.


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