Answer first
Wash the scalp, not the lengths: massage the Dr. M Kelp Shampoo into the roots and let the lather rinse through the ends. Apply the Protein Tonic to the scalp and a little through mid-lengths, and keep heavy oils off the roots. Trim split ends regularly.
Roots
Daily or alternate-day washing is fine in hot weather.
Ends
Avoid very hot tools; a small amount of conditioner on the ends only helps.
Questions
Should I wash less to fix dry ends?
No, focus shampoo on the roots instead.
Can I use the tonic on the ends?
A little on mid-lengths is fine.