CYCO Uptake, 20 LiterCYCO Platinum Series Uptake CYCO Platinum Series Uptake is an additive used throughout the vegetative and flowering periods of plant growth to provide natural complexing and uptake of minerals. CYCO Uptake is the source of humates in the CYCO Platinum Series line of plant fertilizers Humic acid is a stage of plant decomposition before the material turns to oil. As such, the humates exist in a state of flux as large long chain carbon molecules. With