Greenstar Plant Products, Inc is committed to providing high-quality horticultural products. Fully equipped with a state-of-the-art analytical laboratory, the lab scientists test all of the raw ingredients before they are used in our formulations. Quality raw materials guarantee the consistency and high performance of our finished products.

Raw materials are put into quarantine on arrival, until an inspection is completed. A sample is taken, inspected and analyzed for general characteristics. These characteristics are compared to our internal acceptance criteria. If it is a new product, or we suspect that the quality has changed, a complete analysis is performed. This may include testing for nutrient levels or making sure that it is not contaminated with toxic substances such as heavy metals. Only after the completion of these steps is the raw material removed from quarantine and stocked.

Each batch of finished product is also tested to ensure no errors have been made during mixing. A sample is taken and inspected in a similar way to the raw materials. If the batch does not meet the internal acceptance criteria it is reformulated or a complete analysis is performed.

Greenstar is proud to be an ISO-certified company. Every year ISO audits the manufacturing facility to ensure we have followed our strict guidelines in order to maintain certification. The most recent audit of the facility had no non-compliance issues.

ISO standards make the development, manufacture and supply of products more efficient, safer and cleaner. They make trade between Countries easier and fairer and they provide governments with a technical base for health, safety and environmental legislation. ISO standards also serve to protect consumers.

Greenstar stands behind all of its manufactured products with a 100% satisfaction guarantee. Through research and development, Greenstar will continue creating new innovative products to keep you growing green.