Calodal silver (40ppm)

KO Genetics Colloidal Silver (40 ppm): The Master Breeder’s Tool

Take control of your plant’s genetics with KO Genetics Colloidal Silver. Engineered at a high-potency 40 ppm concentration, this specialized foliar spray is the definitive solution for inducing sex reversal in female cannabis plants. Whether you are looking to preserve a rare phenotype or create your own line of feminized seeds, our Colloidal Silver provides the precision and reliability required for professional-grade breeding.

How It Works

When applied to a female plant at the onset of flowering, the silver particles suppress ethylene—the hormone responsible for female flower development. This triggers the plant to produce male staminate flowers (pollen sacs) that carry 100% female DNA. The resulting pollen can then be used to pollinate another female, ensuring the offspring are feminized seeds.