Can I dye my hair on days 0–41?

Not yet. Not yet. Dye chemicals can irritate healing skin. Most clinics ask you to wait at least several weeks.

Can I dye my hair after a hair transplant?

Q: Can I dye my hair on from day 42?

Careful. Only once the scalp has fully healed and your clinic agrees. Do a patch test at least 48 hours before, every time, and keep dye off the skin where you can.

Careful: Only once the scalp has fully healed and your clinic agrees. Do a patch test at least 48 hours before, every time, and keep dye off the skin where you can.

Day by day

Days 0–41Not yet
Not yet. Dye chemicals can irritate healing skin. Most clinics ask you to wait at least several weeks.
From day 42Careful
Only once the scalp has fully healed and your clinic agrees. Do a patch test at least 48 hours before, every time, and keep dye off the skin where you can.

Not yet reviewed by a doctor — verify with your clinic.

Sources

Hair dye reactionsNHS, 2025
An international expert consensus statement focusing on pre and post hair transplantation careJournal of Dermatological Treatment, 2023