Highlighted Research Topics

NTP has a broad mandate to provide toxicological characterizations for chemicals and agents of public health concern and strives to balance the selection of substances for study. This has resulted in a diverse research program with emphasis on synthetic industrial chemicals, pesticides, drugs, metals, and food additives. NTP continues to explore new areas of research. In general, these initiatives are wide-ranging and include various health-related endpoints.

Current Topics

Botanical Dietary Supplements

Botanical dietary supplements are made from plants or plant parts and are taken orally to supplement a diet. Browse studies conducted by NTP on botanical dietary supplements. Go

Cell Phones

Cell phones play an ever-increasing role in modern life. Read more on NTP studies to clarify potential health hazards. Go

Glyphosate & Glyphosate Formulations

Glyphosate and glyphosate formulations are widely used as herbicides. Learn about NTP studies to evaluate these formulations. Go


Mold has demonstrable human health effects. Browse NTP research and results on mold studies. Go

Per- and Polyfluoroalkyl Substances

PFAS are a large group of manufactured substances with widespread exposure to humans. Read more about NTP studies on PFAS exposure. Go

Polycyclic Aromatic Compounds

PACs are found naturally in petroleum and coal. Learn about NTP's research into potential toxicity of individual PACs and PAC mixtures. Go


Sulfolane is a solvent widely used in industry. Find more information regarding NTP’s series of studies on sulfolane. Go

Archived Topics

Artificial Butter Flavorings (ABF) Components

Artificial butter flavorings have the potential to be hazardous to human health. Learn about NTP research on this topic. Go


CLARITY-BPA is studying a range of potential health effects from exposure to bisphenol A. The program unites standard regulatory research practices with innovative university studies. Go

Hexavalent Chromium

Hexavalent chromium is found in drinking water sources—a potential risk to public health. Learn more on NTP’s evaluation. Go

Synthetic Turf/Recycled Tire Crumb Rubber

Synthetic turf and recycled tire crumb rubber are made up of artificial fibers. View NTP study information on synthetic turf and recycled tire crumb rubber. Go

UV Filters

UV filters are added to products such as sunscreens, cosmetics, or plastics to protect against the harmful effects of UV rays. Read more about NTP studies on these chemicals. Go

West Virginia Chemical Spill

NTP has completed the West Virginia chemical spill research program. NTP's final update, collective findings, and supporting files are now available. Go