About CBDThinker

CBDThinker is a science-based resource for everything related to cannabidiol (CBD) and hemp.

You’ll find educational articles, product and company reviews, answers to common questions about CBD, and more. We take the research and science behind CBD and break it down into simple, easy-to-understand language. Our goal is to:

  • Educate people about CBD and cannabis as a whole
  • Counteract the misinformation in the CBD industry
  • Help people make educated decisions when buying and using CBD and other hemp-derived cannabinoid products

Any information that has an impact on your health deserves the utmost scrutiny. That’s why the content on our site is based on published scientific studies, thorough research, and personal experiences with CBD. Learn more about our content creation and product review process.

We hope this website supports your journey of using CBD and other hemp cannabinoids to better your health. If you have any questions related to CBD, feel free to send us a message. Our website is reader-supported; here’s how we make money.

What Makes CBDThinker Different

There are four things that set us apart from most CBD review sites:

We know our stuff. Our articles are written by CBD experts that have tried hundreds of products and know the industry. Many other sites simply recommend whatever brands give the best affiliate commissions and don’t know much about CBD and cannabis.
We rely on scientific evidence. Our content is based on published medical research on CBD and other cannabinoids. We give you the most evidence-based information and cite research studies throughout our articles. We also have doctors and pharmacists review the content for accuracy.
We’re CBD users just like you. We’ve been using CBD products for years and are always trying different ones to find the best options. The brands and products we recommend are those that we found the most helpful and affordable.
We’re honest. We’re not afraid to call out brands for misleading claims (like full-spectrum products that only show CBD on third-party tests), ineffective products, and other issues. That’s why we’ve written plenty of negative company reviews.

Our Team

Gleb Oleinik
Gleb Oleinik
Founder & Chief Editor

Gleb created CBDThinker in 2020 to share everything he's learned about CBD. A freelance writer since 2010, he specializes in CBD & cannabis content and has written for many CBD brands and websites. Gleb has read thousands of studies about CBD, cannabinoids, and other supplements, tried dozens of CBD products, and knows the industry inside and out. He first tried CBD oil in 2017 and was impressed by its calming effects; he now regularly uses CBD to help with sleep and overall wellness. Gleb lives in Vancouver, Canada but for the past few years, he's been traveling and living abroad as a digital nomad. He enjoys exploring new places, hiking, working out, and telling people how awesome intermittent fasting is.

Antonio DeRose
Antonio DeRose
Product Reviewer & Contributor

Antonio has been involved in the cannabis industry as a writer, cultivator, and educator since 2016. Based in Missouri, he and his wife run Green House Healthy, a media company focused on hemp and cannabis. Antonio became a licensed medical cannabis cultivator in 2019 and runs a regenerative hemp farm with his wife. He has presented cannabis and wellness education, hemp nutrition classes, cannabis-positive fitness classes, and a cannabis wellness retreat in Jamaica. He's also a certified personal trainer and nutrition coach, helping clients meet their goals with the help of cannabis. Antonio loves to walk, run, and hike through different forests, binge-watch tv shows, write raps and poetry, and goof around with his 5 rescue animals.

Abraham Benavides
Abraham Benavides
MD, Medical Reviewer

Abraham is a cannabis medical reviewer, author, and resident Family Physician based in Seattle, WA. He is an alum and full-tuition merit scholar of the George Washington University School of Medicine & Health Sciences. Abraham is a consultant and scientific advisor for cannabis-related companies, including Veriheal, Joy Organics, and Daily CBD. In 2016, Abraham started the Cannabis as Medicine Interest Group — the first of its kind at a US medical school. CANMIG provides doctors-in-training with expert teachings from cannabis researchers and clinicians. He was inspired by his great-grandmother, who practiced tropical medicine in rural Costa Rica. Abraham enjoys hiking, fishing, snorkeling, crypto investing, and camping with his wife and adventurous pug. They also enjoy visiting family in Costa Rica and San Diego.

Kimberly Langdon
Kimberly Langdon
MD, Medical Reviewer

Kimberly Langdon M.D. is a retired, board-certified obstetrician/gynecologist with 19 years of clinical experience. She graduated from The Ohio State University College of Medicine, earning Honors in many rotations. She then completed her OB/GYN residency program at The Ohio State University Medical Center, earning accolades for her Senior Research Project and a Score of 98th percentile on a National Proficiency Test. After clinical practice, she founded a medical device company where she invented six patented medical devices for both life-threatening and non-life-threatening conditions. She is an expert medical writer & reviewer and a featured author on a variety of healthcare sites.  

Saira Zulfiqar
Saira Zulfiqar
PharmD, Medical Reviewer

Saira is a clinical pharmacist with over 15 years of experience. She graduated in 2008 with a Doctor of Pharmacy (PharmD) degree from the University of Punjab, the top-ranking and oldest university in Pakistan. Saira is a drug, CBD, and rehab expert. She works as a CBD consultant for kannavisitrade, which advises companies in the hemp and medical cannabis industry. Saira is also a medical & scientific writer who crafts top-notch content (reviews, articles, guides, blogs) for biotechnology, pharmaceutical, and supplement companies. In her free time, she likes to read, watch wildlife documentaries, and go on long silent walks in the woods.

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