1) Aloe 2) Bribe 3) Plasticiser 4) Plasticizer 1) Chemical 2) Dryer sheet 3) Laundry additive 4) Laundry detergent additive 5) Laundry room bottle 6) Word with water or fabric 
• (n.) One who, or that which, softens.
Sof'ten·er noun One who, or that which, softens. [ Written also, less properly, softner.] 
[n] - a substance added to another to make it less hard
noun a substance added to another to make it less hard
suavizante, ablandador