Why Japanese Straightening Damages Hair — It’s Not Just the Chemicals
Everyone blames the chemicals. A Tokyo straightening specialist explains what really causes the damage — and the question that tells you if a salon is…
Japanese Hair Straightening
Everything I know about shukumo kyosei — Japanese permanent straightening — after eight years of doing it in Tokyo and Shanghai. What the treatment actually does to your hair, how to protect it in the first 72 hours, when to touch up, and which shampoos will not undo the work.
Japanese Straightening vs Keratin Treatment: A Specialist Explains the Difference
A licensed stylist who sells neither treatment compares them: what each one does inside the hair, how they grow out, where the formaldehyde rules actually stand in 2026, and what both cost.
The First 72 Hours After Japanese Hair Straightening
Can you tie it? Tuck it behind your ears? What if it gets wet? A straightening specialist answers the first-72-hours questions — and how to fix mistakes.
Japanese Hair Straightening Touch-Ups: When Roots Grow In, What to Do and When to Go Back
Your roots are coming in with your old texture. A straightening specialist explains what is normal at the regrowth line, what not to do while you wait, and when a touch-up actually makes sense.
Shampoo After Japanese Hair Straightening: 4 Safe Picks
A straightening specialist’s guide to what to wash with afterwards — the 72-hour rule, why sulfates fade your treatment, and 4 shampoos that are safe…