PurePlenty Shampoo has a different lather than Harmonic and PureLuxe, why? 

PurePlenty Shampoo has a different lather than Harmonic and PureLuxe, why? 

PurePlenty Shampoo has Decyl Glucoside (a sugar derived mild cleansing agent), which provides flash (quick) foam and also gives a luxurious feel during application.