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Your cart is empty.Cannabinology Feminized Seed Spray is an easy to use Silver Thiosulfate Spray Kit to make feminized seeds. This 8 oz / 240 ml STS based Feminized Seed Spray Kit contains enough Silver Thiosulfate (STS) to make 8 oz or about 250 milliliters of STS spray. Enough STS spray to sex reverse many small or medium plant or 1 large plant and perfect to make many thousands of feminized seeds!
RealReviewer1776
Reviewed in the United States on March 22, 2025
This bottle came with the bottle 5-10% full of spray, basically empty, so I assumed you filled it with water and mixed ot up. Very weak, applied it all as it should be, did not work. Waste of money. Onto the next. Don't waste money on this one. This bottle comes maybe 5-10% full of concentrate its junk. Not even enough to reverse a single plant.
JJ
Reviewed in the United States on January 1, 2025
Would definitely buy it again!
Sierra Hilaire
Reviewed in the United States on April 21, 2025
Product came empty !I'm disappointed.
Kevin purvis
Reviewed in the United States on July 28, 2024
This stuff works really well on cannabis plants. As you can see in the photo I have pollen flowers all over my bud It worked perfectly read the label and follow instructions and it's frawless.
Brae
Reviewed in the United States on March 15, 2024
One bottle is enough for a couple plants. It works great for those of us who don’t have the time to apply a spray like colloidal silver every day, like if you’re going to be gone for a few days or you live away from your grow but personally I don’t think I’ll be using it again.In comparison to colloidal silver I did notice that the flowers were smaller and you get less pollen. You just don’t get enough of the solution to begin with. You have to dilute the solution you receive and it’s still not even a spray bottle full and because of that you have to use it sparingly so you can’t build up the concentration of silver required for the best results.It’s also a lot less stable than CS. It’s recommended to refrigerate unused STS spray but you can keep bottles of CS in a cabinet basically indefinitely.
Vern
Reviewed in the United States on April 2, 2024
I like the STS because it actually works,I recently found my old empty bottles of colloidal silver,I counted at least 10 bottles ,never,never even once found any sign of male flowers not a one,this STS really works It's really potentt stuff!!! Fyor the money it's really worth it if you want true results you won't be let down!!!!
JohnG
Reviewed in the United States on December 1, 2023
I was skeptical, I followed instructions and a few suggestions from others which seemed pretty realistic, I had a few people tell me I wasted my money and this is just a gimmick item. Well I used as directed/suggested and now I have plants producing seeds for me that I can no longer purchase. The plants I have grown from the seeds produced using this spray have all been strong, healthy, and without any noted genetic mutations. Will buy it again
Bill Head
Reviewed in the United States on October 19, 2023
I ordered this awhile back to work on a breeding project unfortunately that plan fell through so this item sat under my kitchen sink for over a year forgotten.Recently I came across it and decided to see how well it would perform after over a year of storage.Using RO water and following the instructions I mixed it up, following the spray times also included in the instructions I began my experiment.I'm happy to say that not only do I have a bunch of reversed pollen the plant has self seeded.Definitely a product to use if you are interested in creating your own female plants.***Because of the plant I used I can not show photos***
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