If the ends are browned out and flat from previous color, can FRAMCOLOR 2001 INTENSE be used to refresh the tone and add shine?

Absolutely! Adding a color 2 levels lighter and with gold (.031) will shift the brown tone to brighten the current color while adding shine.

Absolutely. Adding a color 2 levels lighter and with gold (.031) will shift the brown tone
to brighten the current color while adding shine.