Make your own or use STS.
I reccomend STS. Both work but STS requires less spraying and since you're mixing by weight you know the concentration of the solution. Purchased CS can be all over the place and you have to spray CS daily for a couple weeks where STS only requires a few sprays.
To make STS you need a small bottle of silver nitrate and sodium thiosulfate.
Silver nitrate 2 grams $16.50
This 2 g bottle of silver nitrate, also known as lunar caustic, is an inorganic compound. Discover the silver nitrate formula, density, shelf life, and more!
www.homesciencetools.com
Sodium thiosulfate 30 grams $4.10
Sodium thiosulfate or thiosulphate, 30 g bottle, anhydrous form. Na2S2O3. Get your small quantity fast and cheap!
www.homesciencetools.com
That's $20.60 plus shipping but they have economy shipping options and will make enough to reverse dozens of plants. You can mix what you need when you need it.
Recipe's for mixing are in this thread. If you are only doing one plant you can cut the recipe down to just make 16 ounces or so.
This is the mixture I plan to use (first time - feedback welcome) 0.1 grams Silver Nitrate + 100ml H2O 0.5 grams Sodium Thiosulfate + 100ml H2O + 500ml H2O Glass Jar For female pollen sacks- Fem Seeds (do not ingest these chemicals- wear nitrile(?) gloves when applying) My question is this...
www.rollitup.org
Regardless of which method you choose Good Luck with your reversal.