The original OSA (Si(OH)₄) formula

Gen200 was launched in 2012 with the introduction of Control, the Original OSA (Si(OH)₄) Formula. Conceived for the indoor cultivation of flowers and fruit, the benefits of our proprietary orthosilicic acid recipe were quickly embraced by home growers as well. Gen200 Control supplies silicon as stabilised orthosilicic acid (Si(OH)₄), which plants take up directly. Silicon strengthens the cell walls, for firmer stems and leaves and better tolerance of heat, cold and drought.

• Silicon: approx. 2.56% Si(OH)₄ (1.6% SiO₂ w/w)
• Dosage: 15 ml per 100 L of feeding water
• Yield per bottle: 1 L treats approx. 6,700 L of water
• Sizes: 100 ml · 250 ml · 500 ml · 1 L · 5 L