Black Runtz
25.6%
THC
Top flavors
Terpenes
Black Runtz effects are mostly calming.
Black Runtz potency is higher THC than average.
Black Runtz
25.6%
THC
Top flavors
Terpenes
Black Runtz effects are mostly calming.
Black Runtz potency is higher THC than average.
Black Runtz is a modern hybrid cannabis strain resulting from a cross between the well-known varieties Runtz and Zkittlez. Developed for those who prefer high-potency options, this hybrid is designed for cultivation in both indoor and outdoor environments. Growers can expect a moderate level of difficulty when managing its development, with a flowering period that typically concludes within 60 days. The plants are recognized for their high production capacity, consistently delivering substantial yields for cultivators who maintain proper conditions.
The chemical profile of Black Runtz is defined by a complex terpene hierarchy, led by the dominance of myrcene, followed by limonene, caryophyllene, humulene, beta-pinene, linalool, pinene, and bisabolol. This multi-layered combination dictates the sensory experience, balancing earthy and grounding notes with citrus-forward bright accents and a spiced, woody undertone. These compounds work in concert to produce an aromatic and flavor profile that reflects the nuance of its lineage, emphasizing the chemical depth present in its terpene composition.
As a THC-dominant variety, Black Runtz tests at approximately 28.9% THC with virtually no CBD content. Users report that the consumption of this flower generates effects primarily characterized by feelings of relaxation, happiness, and an uplifted mood. These specific properties make it a candidate for individuals seeking to manage stress, alleviate pain, or improve sleep quality. While it remains a distinct standout in the current market, there are currently no recorded offspring strains developed from this genetic line.
Terpene Profile
Synergies (+) and conflicts (−) are relative to each other within this profile.
| Terpene | Share | Character | Likely role |
|---|---|---|---|
| myrcene | ~60% | earthy | relaxing · solo |
| limonene | ~28% | citrus | social · creative |
| caryophyllene | ~12% | spicy | relaxing · social |
Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.
Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.
Russo 2011: increases serotonin in prefrontal cortex + dopamine in hippocampus via 5-HT1A; Johns Hopkins 2024: significantly reduced anxiety vs THC alone.
~12%
spicy
●●○○
Russo 2011: only terpene that is a selective full CB2 agonist (100 nM); Gertsch et al. 2008: acts as dietary cannabinoid; unique anti-inflammatory and gastric cytoprotective properties.
Effects
Reported effects — derived from terpene chemistry and cannabinoid profile.
relaxed
eveningPrimary endpoint of myrcene+linalool sedating combinations; GABA modulation is the dominant mechanistic driver.
happy
anytimeuplifted
morningLimonene anxiolytic/antidepressant via serotonin elevation in prefrontal cortex (Russo 2011); mood improvement without full euphoria; key for balanced-1-1 profiles.
Genetic Profile
Balanced Hybrid
Equal indica and sativa genetics. Balanced body and mind effects.
THC-Dominant
High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.
Genealogy
Parentage, ancestry, and genetic relatives of Black Runtz.
Ancestry
Great-great-grandparents
Great-grandparents
Grandparents
Composite Traits
Where to buy Black Runtz
No verified dispensaries on file — find it on Leafly.
Dispensary Locator
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What would Black Runtz × ? produce?
Predict the terpene profile, effects, and growing traits of a cross. Our gene weaver engine votes on dominant traits from both parents.
Build a cross with Black Runtz →Similar strains
Same primary terpene with overlapping effects.
Frequently Asked Questions
Is Black Runtz indica or sativa?
Black Runtz is modeled here as a balanced hybrid (equal indica and sativa genetics).
What terpene is dominant in Black Runtz?
Myrcene is shown as the dominant terpene at approximately ~60%. Limonene follows as the secondary terpene.
Is Black Runtz good for daytime use?
Black Runtz is versatile and works across different times of day depending on dose and individual response.
How accurate is this data?
See the "Data confidence" card in the sidebar. Terpene profiles and effects are chemistry-informed estimates — individual responses depend on phenotype, source, and personal chemistry.