Research for Your Most Important Health Purchases

FITNESS

How I Ran a Sub-3-Hour Marathon While Maintaining Muscle

By Sahil Bloom - author, investor, entrepreneur, and Innerbody featured contributor

Trusted research for your health

Best Testosterone Booster

Medically reviewed by Isabel Urdaneta, MD

MENTAL HEALTH

The Science of Positive Activities

By Dr. Sonja Lyubomirsky - professor, researcher, author, and Innerbody featured contributor

HAIR CARE

Your Guide to Topical Finasteride

Medically reviewed by Scott Bukoski, MD

Trusted research for your health

Best Testosterone Booster

Medically reviewed by Isabel Urdaneta, MD

HEALTH TESTING

Microbiome Testing: Finding the Best Test

Medically reviewed by Dr. Ayesha Bryant, MSPH, MD

RESEARCH

The U.S. Metro Areas With the Highest STI Rates

We dive into the CDC's latest STI Surveillance statistics.

Learn About the Human Body

Whether you're a student or simply curious, use our Anatomy Explorer with 2D and 3D interactive models to learn all about human anatomy and physiology.

Browse by Category

WE HAVE BEEN FEATURED IN PUBLICATIONS SUCH AS:

FEATURED CONTRIBUTORS

Our featured contributors are distinguished professionals and leaders in their fields. They’re here to share useful advice from years of experience.

Sahil Bloom

Author, Investor, and Entrepreneur

Dr. Sonja Lyubomirsky

Professor, Researcher, Author, and Speaker

Christian Baker

Dietary Supplement Formulations Expert

Jill Weisenberger, MS, RD, CDE, CHWC, FAND

Registered Dietitian Nutritionist and Author

Meet our medical review board

With a commitment to upholding the highest standards of integrity and transparency, we strive to empower consumers with trustworthy information to make informed decisions about their health and well-being. Learn More

Matt Segar, MD

Cardiology, Bioinformatics

Ayesha Bryant, MSPH, MD

Epidemiology & Biostatistics, Clinical Medical Research

J. Matt Williams, MD

Sexual Medicine, Clinical Medical Research

Jordan Stachel, MS, RDN

Nutrition

Thomas Kutner, MD

Cardiology, Lipidology, Diagnostic Imaging, Electrophysiology

Nicole Arzt, MS, LMFT

Psychology, Marriage & Family Therapy

HOW WE DELIVER RELIABLE INFORMATION

Products and services are tested independently by our experts

We purchase and test hundreds of products and services each year to provide the most in-depth, actionable product comparisons possible so you can make decisions with confidence.

80,000+

Hours spent testing and analyzing products to give you the most accurate recommendations.

171

Collective years of health and research experience in our team.

Every article is written and reviewed by medical professionals

Our researchers and writers focus entirely on health-related products, services, and in-depth studies. A board of medical professionals reviews our content so you can trust it completely. Helping you make the most of your healthcare has been our business for the past 20 years.

Data and recommendations are constantly updated to reflect the latest research.

In the sprawling and evolving home health industry, not a week goes by without the introduction of new products, services, or brand new companies. We constantly update our reviews and guides to deliver the latest, most accurate recommendations. You can count on us.

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million

Health-related purchasing decisions guided.