About CBDThinker

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

You’ll find educational articles, hemp industry news, 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
  • Keep you up to date on the latest developments in the CBD & hemp field
  • 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 our articles are based on published scientific studies, thorough research, and personal experiences with CBD, and are reviewed by medical doctors and pharmacists. 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 Us 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 highest 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 over 5 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 effective and affordable.
We’re honest. We’re not afraid to call out brands for misleading claims (like full-spectrum tinctures that only show CBD on third-party tests), ineffective products, and other issues. We give honest reviews that highlight the pros and cons and let you be the judge.

Our Team

Gleb Oleinik

Founder & Chief Editor, Product Reviewer

Relevant Experience:

  • Expert in CBD, cannabis, and dietary supplements
  • Specializing in CBD since 2017
  • Tested hundreds of CBD products
  • Freelance writer & editor for 10+ years

Gleb created CBDThinker in 2020 to share everything he's learned about CBD. He graduated from the University of British Columbia with a Bachelor of Arts (double major) degree in History and Geography in 2015.

Gleb has been a freelance writer since 2010, specializing in CBD & cannabis content, and has written for many CBD brands and websites, including Cannigma, Leafreport, and DailyCBD. He's read thousands of studies about CBD, cannabinoids, and other dietary supplements, tried hundreds of CBD products, and knows the industry inside and out. Gleb has also written independent CBD testing reports.

He first tried CBD oil in 2017 and was immediately impressed by its calming effects; he now regularly uses CBD products to help with sleep, stress, exercise recovery, and overall wellness. Gleb lives in Vancouver, Canada but has been traveling abroad as a digital nomad since 2019. He enjoys exploring new places, hiking, working out, going on road trips, and telling people how awesome intermittent fasting is.

Gleb is the guy trying out and reviewing most of the CBD products and writing or editing much of the content.

Antonio DeRose

Product Reviewer & Contributor

Relevant Experience:

  • Registered Missouri hemp farmer
  • Licensed medical cannabis patient cultivator
  • Hemp & cannabis education specialist

Favorite CBD Product:

Kind Living Farm hemp flower

Antonio has been involved in the cannabis industry as a writer, cultivator, and educator since 2016. He moved from Missouri to Colorado to work as a grow lead on an all-organic, outdoor cannabis farm. During the same year, he and his wife co-founded Green House Healthy, a health and wellness media company focused on hemp and cannabis.

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 became a licensed medical cannabis cultivator in 2019 and founded Kind Living Farm, a regenerative hemp farm, with his wife in 2020.

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. At CBDthinker, his job is reviewing some of the products and contributing articles.

Abraham Benavides

MD, Medical Reviewer

Relevant Experience:

  • Doctor of Medicine with a certificate in health policy
  • Founded cannabis interest group in medical school
  • Bachelor of Arts in Biology

Favorite CBD Product:

Myriam's Hemp CBD tincture

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 that include 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. Abraham is the lead author of CANMIG’s research publication promoting cannabis education in medical school. He was inspired by his great-grandmother who practiced tropical medicine in rural Costa Rica.

During medical school, he also earned a Health Policy Track Certificate by interning at the National Hispanic Medical Association in Washington, D.C. where he advocated for advancing Hispanic public health and the interests of 50,000 U.S. Hispanic physicians.

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. Abraham reviews some of our articles to make sure they're accurate and medically sound.

Kimberly Langdon

MD, Medical Reviewer

Relevant Experience:

  • Doctor of Medicine
  • Board-certified OB/GYN with 19 years of experience
  • Medical reviewer for several healthcare websites

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. 

Dr. Kangdon has delivered over 2000 babies to mothers in a suburban Midwestern community. Besides obstetrics, she also specialized in gynecologic diseases such as menstrual disorders, vaginitis, infertility, menopause, contraception, pelvic pain, sexually transmitted infections, and minimally-invasive surgeries.

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. She reviews most of our content to make sure it contains accurate medical information.

Saira Zulfiqar

PharmD, Medical Reviewer

Relevant Experience:

  • Doctor of Pharmacy
  • Medical writer

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. Saira helps review our content to make sure it's medically accurate.