The Most Important CBD Studies Published So Far in 2025

There’s been hundreds of CBD-related studies published so far in 2025.

Of these studies, some stand out as being particular important and/or impactful.

With that in mind, below is a breakdown of what we consider to be the top 50 CBD studies so far this year.

Study: CBD May Help Lower Systolic Blood Pressure

A clinical trial indicated that CBD supplementation may reduce systolic blood pressure in adults, pointing to its possible role in cardiovascular health management. Researchers note the need for larger, longer-term trials.

Harvard Study: CBD Reduces Anxiety Symptoms in Pilot Clinical Trial

An open-label, six-week pilot (n=12) using 30 mg/day full-spectrum sublingual CBD reported notable anxiety reduction with improvements in sleep and quality of life, no serious adverse events, and a call for larger placebo-controlled trials.

CBD May Improve Memory and Reduce Inflammation in Alzheimer’s Patients

A study from the University of Haifa found that in Alzheimer’s-model rats, chronic CBD reversed memory decline and reduced inflammation and Alzheimer’s-related brain pathology (amyloid plaques, tau) largely via CB1 receptor activation.

CBD Reduces Parkinson’s Treatment Side Effect Without Hindering Motor Benefits

Published in Neurotherapeutics, this study found that cannabidiol (CBD) protects brain cells in a Parkinson’s disease model by activating the Nrf2 antioxidant pathway, offering neuroprotection without interfering with motor benefits from standard treatments.

Cannabidiol (CBD) Inhibits Metastasis in Pancreatic Cancer by Targeting MALAT1 and EMT Pathways

Published in IUBMB Life, this in vitro study by researchers at Kyung Hee University found that CBD suppresses metastatic behaviors in pancreatic ductal adenocarcinoma (PDAC) cell lines by downregulating the long non-coding RNA MALAT1 and reversing epithelial–mesenchymal transition (EMT). CBD reduced expression of invasion-related proteins (CXCR4, CXCR7, MMP-2, MMP-9), increased levels of epithelial markers (E-cadherin, Occludin), and decreased mesenchymal markers (Snail, Vimentin). When combined with low-dose gemcitabine, CBD demonstrated a synergistic suppression of these pathways without notable toxicity—highlighting its potential to enhance chemotherapy effectiveness at the molecular level.

Topical CBD Gel Reduces Migraines and Improves Sleep in People With Bruxism‑Related Muscle Pain

Published in Journal of Clinical Neurology, this clinical trial found that a topical CBD gel significantly reduced migraine frequency and severity in individuals suffering from bruxism-related muscle pain—and also improved sleep quality in affected participants.

CBD Reduces Inflammation and Redness in Rosacea, Especially When Combined With Antibiotic

In a rosacea animal model, cannabidiol (CBD) significantly reduced skin redness, inflammation, and mast cell infiltration—effects that were enhanced when combined with the antibiotic metronidazole. The study identified suppression of MAPK signaling (ERK, JNK, p38) and reduced proinflammatory cytokine and chemokine production as key mechanisms in CBD’s therapeutic action.

Cannabidiol Protects Brain Cells in Parkinson’s Model by Activating Antioxidant Pathway

Published in Neurotherapeutics, this study showed that cannabidiol (CBD) protects neuronal cells in a Parkinson’s disease model by activating the Nrf2-mediated antioxidant defense pathway. The results suggest CBD may offer neuroprotective benefits in neurodegenerative conditions.

CBD Treatment Leads to Sustained Seizure Reduction in Focal Epilepsy Patients, Including Those With TSC

Published in Epilepsy & Behavior Reports, this study found that cannabidiol (CBD) treatment significantly reduced seizure frequency in patients with focal epilepsy—including those with tuberous sclerosis complex (TSC)—and maintained these benefits over time. Additionally, many patients were able to reduce their doses of other antiepileptic medications without an increase in adverse events.

Study: CBD Use May Reduce Alcohol Dependence and Brain Damage

Findings suggest CBD may help mitigate alcohol dependency and its neurotoxic effects. Animal models showed reduced alcohol consumption and signs of brain protection, pointing to CBD’s potential as part of alcohol use disorder treatment.

Study: CBD Reduces Thunderstorm-Related Anxiety in Cats, Including Undesirable Urination

A new study found that CBD significantly reduced anxiety symptoms in cats exposed to thunderstorm simulations. Improvements included decreased hiding, lower stress-related behaviors, and notably less inappropriate urination during and after storms.

Study: CBD and CBDV Show Potent Antifungal Effects, Including Against Drug-Resistant Pathogens

Cannabidiol (CBD) and cannabidivarin (CBDV) were found to disrupt fungal cell walls and inhibit growth of several pathogenic strains, including those resistant to common antifungal drugs. The findings suggest these cannabinoids may serve as novel antifungal agents in future therapies.

Study: Cannabinol (CBN) May Support Neuronal Health and Reduce Cell Stress

New findings suggest that cannabinol (CBN) could promote brain health by reducing oxidative stress and enhancing neuronal survival. The study highlights CBN’s neuroprotective potential, particularly in conditions involving cellular damage.

CBD May Protect Against Heart Failure by Improving Mitochondrial Function and Reducing Inflammation

A preclinical study suggests that CBD could offer cardioprotective benefits by enhancing mitochondrial efficiency and lowering inflammation markers associated with heart failure. The results point to the cannabinoid’s potential as a supportive therapy for cardiac conditions.

Low-Dose CBD Reverses Depression-Like Symptoms by Restoring Brain Synapses

A rodent model in Neurotherapeutics revealed that micro-dose CBD revitalizes synaptic proteins in the prefrontal cortex, reversing depression-like behaviors caused by chronic stress—indicating antidepressant potential at low dosages.

3D-Printed CBD Stent Shows Promise for Localized UTI Treatment

Engineers developed a 3D-printed ureteral stent infused with CBD, which delivered the compound directly to the urinary tract in rats. The localized approach effectively reduced inflammation and bacterial growth, suggesting a novel UTI treatment method.

Long-Term CBD Treatment Improves Memory and Reduces Brain Inflammation

In rodent models, continuous CBD use enhanced memory performance and decreased neuroinflammatory markers. These findings, published in Brain Sciences, support the use of CBD for preserving cognitive function over time.

CBD-Enriched Oil Treats Drug-Resistant Epilepsy in Children Over a Year

Over a 12-month trial in pediatric patients, a CBD-rich oil significantly decreased seizure frequency. Most children saw sustained improvements in seizure control and overall functioning, with the treatment showing a favorable safety profile throughout the study.

CBD Oil May Reduce Autism Symptoms and Oxidative Stress

In a trial published in Pharmacology Biochemistry and Behavior, autistic children treated with daily CBD oil showed marked improvements in behavioral symptoms and a reduction in oxidative stress markers—offering hope for better-targeted support in ASD.

CBD Therapy Shows Promise for Symptoms in Autistic Children and Teenagers

Published in Scientific Reports, researchers observed that CBD-rich extracts led to behavioral improvements among autistic children and adolescents. Participants showed enhancements in social interaction, reductions in anxiety, and better sleep quality. The treatment was well tolerated, with only a few mild side effects reported.

CBD-Infused Hydrogel Promotes Healing in Radiation and Wound-Induced Skin Injury

Published in Antioxidants, this study found that a CBD-infused hydrogel accelerated skin healing, reduced inflammation, and minimized oxidative damage in rats with radiation and wound injuries. The treatment also boosted collagen production and tissue repair, highlighting its potential for dermatological and recovery applications.

CBD May Protect Against Chemotherapy-Induced Heart Damage

Published in Drug Design, Development and Therapy, this study found that cannabidiol (CBD) may protect the heart from damage caused by the chemotherapy drug doxorubicin by activating the Hippo signaling pathway. In both cell and mouse models, CBD improved heart cell survival, reduced oxidative stress, and lowered cell death. These effects were reversed when the pathway was inhibited, confirming its key role in CBD’s protective action.

Full-Spectrum CBD Oil Reduces Key Markers of Muscle Damage in Duchenne Muscular Dystrophy

Published in Muscle & Nerve, this study found that full-spectrum cannabidiol (CBD) oil may help treat Duchenne muscular dystrophy (DMD). In vitro tests showed dose-dependent cytotoxic effects, but in vivo administration to mdx mice at 10 mg/kg per day for 14 days was safe and led to significant improvements in muscle pathology. The treatment reduced central nuclei, IgG+ myofibers, inflammatory areas, and fibrosis in diaphragm and quadriceps muscles, while increasing myofiber size and reducing macrophage presence and NF-κB levels. Serum creatine kinase levels, a marker of muscle damage, were also lowered.

CBD Protects Against Some of the Toxic Effects of Cadmium

Published in Basic & Clinical Pharmacology & Toxicology, this study investigated cannabidiol’s (CBD) protective effects against cadmium-induced toxicity in mice. Researchers found that CBD mitigated oxidative stress and inflammation in the liver and kidneys by restoring antioxidant markers and reducing proinflammatory cytokines. Histological analysis confirmed tissue protection in these organs, though no protective effect was observed in testicular tissue.

CBD Induces Apoptosis and Inhibits Growth in Colorectal Cancer Cells, Regardless of Mutation

Published in ACS Pharmacology & Translational Science, this study found that cannabidiol (CBD) induces apoptosis and inhibits proliferation, migration, and invasion in colorectal cancer cell lines with various mutations, including KRAS, BRAF, APC, and PTEN. The anticancer effects were mediated through CB2 receptor activation and involved endoplasmic reticulum stress, while sparing healthy intestinal organoids.

Cannabidiol (CBD) Disrupts Bacterial Cell Walls, Showing Potential as an Antibiotic Alternative

Published in the Journal of Proteomics, this study found that cannabidiol (CBD) causes significant structural damage to bacterial cell walls and membranes in strains like Bacillus licheniformis, Staphylococcus aureus, and Enterococcus faecium. CBD disrupted key metabolic pathways and altered protein expression, suggesting a novel antibacterial mechanism that could serve as an alternative to traditional antibiotics.

CBD Hydrogel Microneedle Patch Has Obvious Therapeutic Effects for Psoriasis Patients

Published in the International Journal of Biological Macromolecules, this study found that a CBD-infused hydrogel microneedle patch reduced inflammation, skin thickness, and scaling in a mouse model of psoriasis. The treatment suppressed TRIM14 and NF-κB signaling, outperforming conventional topical medication.

CBD Nanoemulsion May Reverse Autism-Like Behaviors and Prevent Neural Damage

Published in Annals of the Brazilian Academy of Sciences, this study showed that CBD delivered via nanoemulsion reversed autism-like behaviors and protected hippocampal neurons in a rat model of autism. The formulation improved bioavailability and led to enhanced social interaction, reduced anxiety, and better exploratory behavior.

CBD Reduces Lung Damage in Blunt Chest Trauma

Published in the Brazilian Journal of Medical and Biological Research, this study found that cannabidiol (CBD) reduced inflammation, oxidative stress, and tissue damage in rats after blunt chest trauma. CBD treatment lowered pro-inflammatory cytokines and improved lung structure, indicating protective effects in traumatic injury.

CBD May Help Kill Ovarian Cancer Cells by Disrupting Their Fat Metabolism

Published in Frontiers in Pharmacology, this study found that cannabidiol (CBD) may kill ovarian cancer cells by interfering with lipid metabolism, specifically reducing the expression of CPT1A, a key enzyme in fatty acid oxidation. The findings suggest that CBD could be a promising therapeutic candidate for targeting metabolic vulnerabilities in ovarian cancer.

CBD and CBG Show Potential in Combating HER2-Positive Ovarian Cancer

Published in Cells, this study demonstrated that cannabidiol (CBD) and cannabigerol (CBG) inhibited the growth of HER2-positive ovarian cancer cells. The cannabinoids disrupted mitochondrial function, reduced cancer cell proliferation, and altered key signaling pathways, pointing to their promise as targeted treatments for aggressive ovarian tumors.

Combination of CBD and THC May Reduce Migraine Symptoms

Published in Phytotherapy Research, this study found that a 1:1 ratio of cannabidiol (CBD) and tetrahydrocannabinol (THC) reduced the frequency and intensity of migraine attacks in patients with chronic migraines. The treatment also improved quality of life and sleep, with minimal side effects reported.

CBD-Coated Pillow Cover May Serve as an Effective Aid in Improving Sleep Quality

Published in Frontiers in Psychiatry, this randomized controlled trial found that individuals using a pillow cover coated with microencapsulated CBD experienced improvements in sleep duration and quality. The benefits were more pronounced among participants with sleep difficulties, suggesting a non-invasive method for CBD delivery.

CBD Significantly Reduces Pain and Inflammation in Patients With Temporomandibular Disorder

Published in Frontiers in Pain Research, this randomized controlled trial found that topical CBD gel significantly reduced pain intensity and improved jaw function in patients with temporomandibular disorder (TMD). The treatment also decreased local inflammation and was well tolerated, with no serious adverse effects reported.

CBD-Rich Cannabis Extract Outperforms Hydrocortisone in Reducing Skin Inflammation

Published in Toxics, this study found that a CBD-rich cannabis extract reduced markers of skin inflammation more effectively than hydrocortisone in a mouse model. The extract decreased levels of pro-inflammatory cytokines and showed antioxidant properties, suggesting it could be a safer and more effective alternative for inflammatory skin conditions.

CBD Shown to Prevent Tooth Decay in Laboratory Model

Published in ACS Omega, this study found that cannabidiol (CBD) inhibited the growth of Streptococcus mutans, a primary bacterium responsible for tooth decay. In laboratory models, CBD reduced acid production, biofilm formation, and bacterial viability, indicating potential as a novel compound in oral hygiene products.

CBD Effective in Reducing Itching and Improving Quality of Life for Atopic Dermatitis Patients

Published in Dermatologic Therapy, this clinical study found that topical cannabidiol (CBD) significantly reduced itching severity and improved sleep, mood, and overall quality of life in patients with atopic dermatitis. The treatment was well tolerated, with no adverse effects reported during the 4-week study period.

Study: CBD Mitigates Anxiety and Neuroinflammation in Offspring of Obese Mothers

Findings show CBD treatment alleviated anxiety-like behaviors and reduced neuroinflammation in offspring of obese mothers, pointing to its therapeutic potential in mitigating intergenerational health risks.

CBD Reduces Nerve Pain and Improves Memory by Activating Pain and Mood Receptors

Published in Phytotherapy Research, this study found that cannabidiol (CBD) reduced neuropathic pain and improved memory in mice by activating serotonin 5-HT1A and cannabinoid CB1 receptors. The results suggest CBD may offer dual benefits for managing chronic pain and cognitive dysfunction.

CBD May Protect Against Epilepsy-Related Neuronal Death by Blocking Toxic Astrocytes

Published in Frontiers in Cellular Neuroscience, this study found that CBD reduced neuronal damage in a rat model of epilepsy by preventing astrocytes from transitioning into a neurotoxic state. The results suggest a new mechanism through which CBD may offer neuroprotection in epilepsy.

Mouthwash With CBD and Spilanthol Significantly Improves Oral Health Markers in Gingivitis Patients

Published in the International Journal of Environmental Research and Public Health, this clinical trial found that a mouthwash containing CBD and spilanthol significantly reduced gum bleeding, plaque, and inflammation in patients with gingivitis after 4 weeks of use. The treatment was safe and well tolerated.