What Should and should not be done 24 hours post Brow Lamination treatment for longevity of results:

Keep brows dry for 24 hours.
Use only recommended aftercare by your brow technician.
Do not apply make-up or undertake further eye treatments for 24 hours after your brow treatment.
Avoid swimming/sauna/working out for 48 hours.
Any excess moisture during the first 48 hours can cause a slight curl/frizz to the brow hair.
Do not allow prolonged exposure to direct sunlight or heat for 48 hours.
Do not apply Retin-A or exfoliate around your brow area for 72 hours after your brow treatment.
No self-tanning products should be used on the face 48 hours after treatment.
NOTE:
If any stinging or swelling occurs, apply a cold compress to soothe and seek medical advice. Be sure to let the technician know if any adverse reactions.

What you should and should not do 24 hours post brow tint or Henna treatment for longevity of results:

Keep brows dry for 24 hours.
Use only recommended aftercare by your technician
Do not apply make-up or undertake further eye treatments 24 hours after your treatment.
Avoid swimming/sauna/working out for 48 hours.
Do not allow prolonged exposure to direct sunlight or heat for 48 hours.
Do not apply Retin-A or exfoliate around the brow area for 72 hours after brow treatment.
No self-tanning products should be used on the face 48 hours after treatment.