The Ultimate Guide to Red Light Therapy by Ari Whitten, MS

The Ultimate Guide to Red Light Therapy: Revised and Updated
by Ari Whitten, MS

ISBN-13: 9780593736555
Hardcover: 384 pages
Publisher: Rodale Books
Released: January 13, 2026

Source: ebook review copy from the publisher through NetGalley.

Book Description, Modified from Goodreads:
REVISED AND UPDATED SECOND EDITION • Harness the power of red light therapy to achieve younger-looking skin, accelerate healing, boost energy levels, support fat loss, amplify the benefits of exercise, and more! This comprehensive guide is updated with the latest research and insights from leading scientists.

Light has the power to heal your body and optimize your health. There are over six thousand peer-reviewed scientific studies showing the proven health benefits of red and near-infrared light therapy, also known as photobiomodulation (the science of using light to modulate biology). In The Ultimate Guide to Red Light Therapy, Ari Whitten, MS, cuts through all of the confusion around this complex topic. He explores the science behind this therapy and reveals how to harness its power to improve your health, your body, and your life.

The Ultimate Guide to Red Light Therapy provides critical information on how to achieve the best results—determining the proper dose for every type of treatment, avoiding common mistakes that can undermine your results, and identifying devices that are worth buying while steering clear of those that are underpowered, overpriced, or ineffective.


My Review:
The Ultimate Guide to Red Light Therapy explains the science behind using red and infrared light for a wide variety of health benefits and how to select a device suited to your end purpose (more surface-level, skin benefits or deeper, like helping joints or muscles). I've previously read the first edition of this book, and this second edition included a lot more information, especially up-to-date, detailed information on the latest scientific research. These sections get technical. However, the book is designed so you can jump over sections that don't interest you. This also means that a lot of information was repeated (in more detail in some places and less detail in others). I ended up skimming sections that got repetitive. Overall, though, this is a good resource if you're interested in using red light therapy, especially in optimizing your red light therapy results. The author didn't specifically recommend very many devices in the book as he felt the market was changing so quickly. He provided a link to go to for the latest recommendations.


If you've read this book, what do you think about it? I'd be honored if you wrote your own opinion of the book in the comments.