Our Research Methodology
Purpose
Where does Maria Approved It (TM) get its information?
We don't rely on marketing claims. We verify information using government records, scientific research, regulatory documents, company disclosures, and independent testing whenever available.
Government Agencies
- FDA
EPA
CDC
FTC
NIH
Description: Regulations, recalls, inspections, enforcement actions, & public health information.
Independent Laboratories
- • Consumer Reports
• NSF
• UL
• Eurofins
• Certified Water Laboratories
Scientific Literature
- • Peer-reviewed journals
• University Research
• Medical Publications
Company Information
- • Annual Reports
• Water Quality Reports
• Ingredient Disclosures
• Sustainability Reports
• Certificates
Legal & Regulatory Records
- • FDA Warning Letters
• Court Records
• Recalls
• Consent Decrees
• Import Alerts
Third-Party Certification
- • USDA Organic
• Non-GMO
• NSF
• B Corp
• Rainforest Alliance
Our Promise
If we cannot verify it, we will tell you.
Our Research Sources
This page lists the scientific papers, reports, and trusted sites used to inform Maria Approved reviews. We believe in transparency and providing direct access to the research based evidence behind our determinations.
Toxicity Report: Household Cleaners
Independent scientific analysis on the long-term effects of common chemical agents found in surface sanitizers.
Women’s Health & Chemical Safety
A longitudinal study focused on the environmental impact of domestic products on women's hormonal health.