CAFFEINS is a playable word

caffein Scrabble® Dictionary

noun
pl. caffeins
caffeine
123 Playable Words can be made from "CAFFEINS"
   2-Letter Words (15 found)
   3-Letter Words (32 found)
   6-Letter Words (7 found)
   7-Letter Words (6 found)
   8-Letter Words (1 found)