We treated one and left the other as a plain cutting. After 7 days, the cutting that had the root stimulator was fully rooted and generated some top growth, while the untreated cutting was only starting to callus over.
The secret to the stimulator's success is a combination of a root-stimulating hormone and a mild fungicide mixed in a gel carrier. The gel holds the proper amount of hormone on the cutting, unlike some powdered hormones that can easily be over- or under-applied.
Comes in a 50ml (1.7 oz) bottle, enough to do hundreds of cuttings. Works on all types of cuttings, softwood or hardwood. An excellent product.
Made in Canada.