https://ntp.niehs.nih.gov/go/whatwestudy

What We Study

Scientist in safety gear examining a petri dish

Overview

Since its founding in 1978, NTP has studied almost 3,000 substances for a variety of health-related effects. We use a variety of approaches, including in vitro and in vivo studies, literature-based analysis, and computational models.

What We Study

Composite image of chemical structures and medication

Highlighted Research Topics

Notable substances, exposures, and mixtures that have recently been studied by NTP. Go
Mother and child on the bank of the river

Health Effects Assessments

Learn how NTP is evaluating and integrating different types of evidence to inform public health decisions on effects from environmental exposures. Go
Male and female scientists using microscopes in a science lab

Testing Program

Learn about the in vivo and in vitro study types used by NTP researchers and scientists. Go

New Approach Methodologies

Lab on chip device

NICEATM: Alternative Methods

Learn how NTP supports the development and evaluation of new, revised, or alternative methods to identify hazardous substances. Go
High-throughput toxicity testing pipettes with Tox21 logo superimposed on background

Tox21

Learn about this interagency initiative to develop new ways to rapidly test whether substances have the potential to adversely affect human health. Go