Blush is the first plant growth regulator specifically developed to bring out the red in bi-color varieties such as Fuji, Gala, Honeycrisp and McIntosh. Featuring the active ingredient prohydrojasmon (PDJ), Blush promotes red fruit coloration by increasing anthocyanin, the naturally occurring red pigment found in apples. The result: redder, more marketable, higher value apples, allowing you to harvest a higher percentage of premium first-pick fruit, thus reducing your labor costs at harvest.