Aptus FaSilitor 1 Liter This golden liquid is the flagship of the entire Aptus lineup. Extremely concentrated, ultra-pure, and fast acting with visible effects. While it is a silicon-based solution, it is unlike any other silicon on the market. The patented formula works with natural plant mechanisms to provide the right nutrition in the right amounts at the right time. FaSilitor aids in uptake of nutrients, strengthens plants structure and increases the plants ability to handle various environmental stresses (abiotic and biotic). It increases the absorption and bioavailability of all other nutrients by acting as an efficient transporter for other elements. This increases general plant strength, health and nutrition. Some of the effects seen with FaSilitor can appear like those of plant growth regulators (PGRs). Aptus products contain no synthetic or unnatural PGRs! The key thing to understand is that FaSilitor works with natural plant mechanisms rather than trying to manipulate in unnatural ways.