6-benzyladenine (MaxCel, Exillis plus)
6-benzyladenine is a cytokinen, a class of growth regulator that promotes cell division. 6BA also acts as a thinner when applied shortly after bloom. Compared to other chemical thinners, it reportedly will increase fruit size beyond what would occur during the normal crop-thinning process. Response to 6BA is very temperature dependant. Do not apply if temperatures are below 65°F. The product should be applied in the morning or evening when conditions are best for slow drying. Do not exceed a total of 308 ounces per acre per season.