Rosacea means constant redness and flushing on the face. There's no cure, and the usual creams don't work for everyone. So when a 2025 study asked whether two cannabis compounds could calm the inflammation behind it, people paid attention.

Can Cannabis Help Rosacea?

By the Advance Telemedicine Clinical Team · 6 min read · Reviewed October 2026

Here's what the research actually found — in plain English.

Key takeaways

Two 2025 lab studies found that the cannabis compounds CBD and CBG reduced redness, swelling, and inflammation in rosacea-like skin.
Both were animal and cell studies, not tests in people. Promising, but not proof.
CBD and CBG don't get you high — which is why they're studied as skin treatments.
A medical marijuana card gives legal access to tested products, plus free guidance from trained dispensary staff and pharmacists.

What is rosacea?

Rosacea is a common, long-lasting skin condition. It usually shows up as redness across the nose, cheeks, and forehead. You might also notice flushing, visible blood vessels, or acne-like bumps.

About 5–10% of adults have it, most often people with fair skin. Flare-ups are often set off by everyday triggers:

Sunlight and UV rays
Heat or sudden temperature changes
Spicy food and alcohol
Stress

There's no cure. Treatment usually means an antibiotic cream such as metronidazole, an anti-inflammatory product, or a redness-reducing cream called brimonidine. These help — but many people still deal with irritation, limited results, or symptoms that come back.

Why cannabis? Your skin's own system

Your skin has a built-in system for managing inflammation, healing, and blood flow. Scientists call it the endocannabinoid system — "endo" simply means the body makes these compounds on its own.

The cannabis plant makes similar compounds, called cannabinoids. Two matter here: CBD (cannabidiol) and CBG (cannabigerol). Neither one gets you high.

Rosacea, at its core, is inflammation that's stuck in the "on" position. So researchers wanted to know: can CBD and CBG help turn it down?

Study 1 — what CBD did

A 2025 study from the Catholic University of Korea tested CBD on rosacea-like skin. They applied it directly to the skin, both on its own and mixed with metronidazole, the standard antibiotic.

Here's what they found:

Less redness and fewer visible vessel changes. Redness scores dropped, and the affected area shrank.
Less skin thickening. Rosacea can make skin build up and thicken over time. CBD reduced that.
Fewer mast cells. Mast cells are immune cells that release histamine — the chemical behind swelling and widened blood vessels.
Less inflammation. Levels of six inflammatory chemicals fell, including TNF-α and several interleukins (IL-1β, IL-6, IL-8, IL-13).
Less oxidative stress. That's damage from unstable molecules called free radicals, which worsen inflammation and weaken the skin barrier.
Best results when combined. CBD plus metronidazole worked better than either one alone.

Source: Shrestha C, et al. Cannabidiol as a therapeutic agent for rosacea. BMB Reports. 2025;58(8):357–363. https://pmc.ncbi.nlm.nih.gov/articles/PMC12402694/

Study 2 — what CBG did

A companion 2025 study tested CBG the same way. It found many of the same benefits — less redness, less skin thickening, fewer mast cells — but it also went after the blood-vessel side of rosacea.

Specifically, CBG reduced:

VEGF — a protein that grows new blood vessels, causing the visible "spider veins" of rosacea.
Two inflammation pathways called JAK/STAT and YAP/TAZ.

In plain terms: CBD calmed the inflammation. CBG calmed both the inflammation and the blood-vessel changes.

What these studies don't prove

Before you buy anything online, it helps to understand what this research was — and wasn't.

These weren't tested in people. Both were lab studies using mice and human skin cells. That's a normal first step — but it's a long way from proof. The researchers themselves say human trials are still needed.

Store-bought "CBD" isn't the same thing. Skincare sold online as CBD isn't regulated like medicine. Potency and purity vary a lot from product to product.

Topical CBD is generally well tolerated, but some people get skin reactions. Patch-test first and talk to a licensed clinician (like one at Advance Telemedicine).

Rosacea isn't a qualifying condition in every state. Whether you can get a medical card depends on your state and your medical history.

How to get these products — legally and safely

You can buy CBD almost anywhere. But if you want products that are actually tested, properly dosed, and matched to your condition, the medical route is different. It starts with a medical marijuana card — a certification from a state-registered provider.

A card gives you things recreational buyers don't get:

A wider range of therapeutic products
Tax exemptions in many states
Priority purchasing at dispensaries
Guidance from the pharmacist at the dispensary, who can help match the right product and dose to your needs

Get certified from home — with real guidance

Advance Telemedicine handles medical card certifications entirely by telemedicine — no waiting room, no travel. A board-certified provider reviews your history and qualifying condition by video or phone. If you're approved, we submit your certification to your state's program, and connect you with trained dispensary staff and pharmacists who can guide you to the right product.