Certified Biostimulant is a voluntary program that certifies conformity to the United States Biostimulant Industry Guidelines to Support the Safety, Composition and Efficacy of Plant Biostimulant Products. The program does not certify, evaluate, or test a product. The certification program is verifying conformance to the guideline above. This certification does not guarantee a product works; Instead, the certification aligns with a consistent framework that can be used to report efficacy testing methods, composition, and safety claims of plant biostimulant products.

The application asks for evidence of product composition; therefore, each manufacturer or retailer applicant is responsible for providing a Guaranteed Analysis or active ingredient concentration in accordance with the U.S. Industry Guidelines (Section 3.1, page 8). As outlined in the U.S. Guideline, the minimum amount should be expressed as a percentage weight by weight (% w/w) or in recognized units of potency (e.g., Colony Forming Units CFU/g, percentage of weight, or other appropriate expressions of composition). Analytical methods for identifying the substance(s) should be provided and any process provided must be repeatable under standard laboratory conditions. Product composition should be reported by a third-party testing facility/laboratory of the applicant’s choice. Further information on composition of specific products can be reviewed in section 3.1 of the U.S. Industry Guideline.