Cannatonic is a balanced hybrid cannabis strain bred by Resin Seeds in Spain, usually listed as a cross of MK Ultra and G13 Haze, known for high CBD levels and a gentle, low-intoxication effect. It dates to around 2008 and helped bring CBD-rich cannabis to patients. THC typically runs 4% to 12%, with CBD in a similar or higher range.
Cannatonic Strain at a Glance
| Type | Balanced hybrid |
|---|---|
| Also known as | Cannatonic CBD |
| Lineage | MK Ultra × G13 Haze |
| Breeder / origin | Resin Seeds (Spain) |
| THC | 4–12% (typical lab range) |
| CBD | 6–17% |
| Dominant terpenes | Myrcene, Pinene, Beta-caryophyllene |
| Aroma and flavor | earthy, citrus, sweet, earth, lemon, light spice |
| Reported effects | calm, relaxed, clear-headed, mildly uplifted |
| Best for | daytime use, people sensitive to THC, gentle relaxation |
| Flowering time | 8–10 weeks |
Where Cannatonic Comes From
Cannatonic came out of Resin Seeds, a Barcelona breeder, and is generally dated to the late 2000s. It is often called the CBD queen because it was among the first widely available lines to deliver high CBD with moderate THC. The usual parentage is a female MK Ultra crossed with a G13 Haze male, which is what most seed banks and Resin Seeds’ own listing report. Some accounts instead say Reina Madre and NYC Diesel, so the lineage is not fully settled.
Seed-grown Cannatonic varies. According to Resin Seeds, about half the plants show a roughly 1:1 CBD to THC ratio, a quarter are high in CBD and a quarter are high in THC. That variability led growers to select specific phenotypes. ACDC is the best known of these, and Cannatonic genetics appear in many CBD products.
Cannatonic Effects: What It Feels Like
A typical Cannatonic session is gentle. Users report a calm head, light relaxation in the body and a mild lift in mood without the foggy or racy edges of stronger THC strains. Many say they can stay productive.
Because CBD and THC are close to balanced in many cuts, the effect depends on the batch. A high-THC phenotype can feel stronger and more cerebral, while a CBD-heavy one barely registers. Beginners tend to do well with a small amount, and the experience generally fits daytime or early evening use.
Cannatonic Terpenes, Aroma and Flavor
Cannatonic smells earthy and slightly sweet, with a citrus note and a faint spiciness. The inhale is mild and herbal, and the exhale carries lemony, earthy undertones. It is a subtle flavor and not a showy one.
Myrcene usually leads the terpene profile, with pinene and caryophyllene adding fresh pine and pepper. Totals vary by grower and cure.
- Myrcene: earthy, musky and herbal, also found in mango and hops
- Pinene: fresh pine, also found in pine needles and rosemary
- Beta-caryophyllene: peppery and spicy, also found in black pepper and cloves
Terpene levels vary from grower to grower and batch to batch, so check the lab label on the package. Learn more in our guide to cannabis terpenes.
Side Effects and How to Use Cannatonic
Cannatonic is considered mild. Dry mouth and dry eyes are the most reported, and some users feel lightly dizzy or sleepy. Those on prescription drugs should check for CBD interactions with a doctor or pharmacist.
How strong Cannatonic feels depends on the batch, your tolerance and how you consume it. Start low, go slow, and read our guide to dosing cannabis.
Do People Use Cannatonic for Medical Reasons?
People commonly describe Cannatonic as a go-to for aches, tension, stress and general inflammation, because the CBD can soften the edge of THC. This reflects user reports only, and anyone with a medical condition should seek professional advice.
These are user reports, not clinical findings. For what research actually supports, see our cannabis health and research section, and talk to your doctor before using cannabis for a health condition.
Growing Cannatonic
- Difficulty: Moderate
- Flowering: 8–10 weeks
- Yield: Moderate
- Height: Medium
- Environment: Indoor or outdoor; prefers a Mediterranean-style climate
Cannatonic is a manageable plant of medium height, but seed-grown plants differ widely in cannabinoid ratio, so growers wanting CBD often take cuttings from tested mothers. Flowering takes about nine weeks. Outdoors it finishes in early to mid October, which means mold risk in wet western Washington and Oregon weather, so a greenhouse or airflow helps.
Home-grow rules depend on the state: adults can grow at home in states such as California (six plants per residence), Michigan (12 per residence) and Oregon (four per household), while Washington and Illinois allow home growing only for registered medical patients. Check your state in our cannabis laws by state guide before you plant anything.
Strains Like Cannatonic
- ACDC: a high-CBD phenotype selected from Cannatonic
- Harlequin: another early CBD-rich strain with a clear feel
- Charlotte’s Web: a very low-THC CBD strain
- Harlequin GDP: adds Granddaddy Purple for more relaxation
- CBD Charlotte’s Angel: a CBD-forward alternative with a calming profile
Browse more hybrid strains, the full strain directory, or our guide to cannabis strains.
More Hybrid Strains to Explore
Cap Junky · Caribbean Cookies · CBD Charlotte’s Angel · Candy Fumez · Candy Cake · California Love OG · All hybrid strains
Where to Buy Cannatonic
Dispensary menus change every week, and Cannatonic may be sold under its own name, as a cross or as a pre-roll or vape. The fastest way to find it is to check store menus online before you go. In Seattle, browse Seattle dispensaries and check the menus at stores like A Greener Today South Seattle and Lux Pot Shop Belltown. In Medford, browse Medford dispensaries and check the menus at stores like Crater Cannabis and Budz Mart. You can also browse licensed dispensaries in every state we cover. Adults 21 and older can buy with a valid photo ID; see cannabis laws by state for purchase limits.
Cannatonic FAQ
Is Cannatonic indica or sativa?
It is a balanced hybrid. Its MK Ultra and G13 Haze parents give it both body calm and a clear head.
How much CBD does Cannatonic have?
Many batches test around 6% to 17% CBD with 4% to 12% THC. Ratios vary a lot, so check the lab label.
Who bred Cannatonic?
Resin Seeds of Barcelona, Spain, around 2008.
What is Cannatonic a cross of?
Most seed banks list MK Ultra and G13 Haze. Some sources say Reina Madre and NYC Diesel, so the lineage is disputed.
Will Cannatonic get you high?
Mildly, depending on the cut. Many people feel calm and clear rather than strongly intoxicated.
What is the difference between Cannatonic and ACDC?
ACDC is a Cannatonic phenotype with much higher CBD relative to THC, while Cannatonic varies from balanced to CBD-leaning.
For adults 21+ in legal states. Strain information reflects breeder descriptions, lab data and user reports; effects vary by person and batch. Not medical advice.
