there are many trade named products out there.... IBA (Indol buteric acid) is the prime ingrediant that is needed. after thatage & storage are important.... for specific plants the strength is important ... it will be listed im PPM or %.... if to weak (for a specific plant) will not work & if to strong will burn the plant

I think most professionals use Dip n Grow. liquid. you can make it as strong or as week as you want. also get a 1/2 inch ( 12 - 13 mm ) test tube 3 to 4 inches long to cut down on how much you use. get an eyedropper to move the water / liquid.

the liquid and gel types are much better than the dry powder. stop using dry powder. the gel is more expensive for lots of cuts. the liquid will do thousands of cuts.

keep in the refrigerator so it stays cold and dark or it will go bad. the small bottle should last for many years.

It is not the rooting hormone that is the secret. Believe me. It's all about understanding the propagation requirements of the plant you wish to take cuttings of. Time of year, type of cutting, best rooting medium (EXTREMELY important), rooting environment, etc., all go hand in hand towards a successful experience. If those factors are not met, there is no commercial hormone that will MAKE your cuttings root.

If you concentrate on some of these things that I have suggested, you will find that rooting hormones are not even required, except for the most stubborn of plant species. (There are plenty of those out there!)

For improved information, perhaps you could ask specific questions regarding the individual plant species that you have been trying to propagate.

I haven't checked recently but some like Rootone have a fungicide. When I was propagating things I found the fungicide to be almost as useful as the hormone. There are some advantages to the liquids and gels but the powder has a shelf life of years, perhaps even decades so that is the trade-off there.