Kryptonite is an indica-dominant cannabis strain rumored to be a cross of Mendocino Purps and Killer Queen, known for a musty tropical-fruit aroma and a heavy, relaxing high. Leafly credits Bay Area breeders at Oaksterdam University, though that origin is unconfirmed. THC is listed from about 16% to 25% depending on the source.
Kryptonite Strain at a Glance
| Type | Indica-dominant hybrid |
|---|---|
| Lineage | Mendocino Purps × Killer Queen |
| Breeder / origin | Credited to breeders connected to Oaksterdam University, Oakland (unconfirmed) |
| THC | 16–25% (typical lab range) |
| CBD | Under 1% |
| Dominant terpenes | Myrcene, Beta-caryophyllene, Pinene |
| Aroma and flavor | musty, tropical fruit, pungent, earthy, sweet, sugary, berry, grape |
| Reported effects | relaxed, sleepy, euphoric, hungry |
| Best for | evening use, unwinding, bedtime |
Where Kryptonite Comes From
Kryptonite is usually described as a clone-only strain, meaning it spread as cuttings rather than seeds. The widely repeated account says it is a cross of Mendocino Purps and Killer Queen, the latter being a Cinderella 99 hybrid, and that it was made by breeders linked to Oaksterdam University in Oakland, California. AllBud’s version says it is likely Killer Queen and Mendocino Purps with some G-13 in the background, and it calls the famous G-13 origin myth probably just that.
Because the strain moved as clones, there is no single official breeder record. Blue Knight and White Kryptonite are listed as offspring on Leafly.
Kryptonite Effects: What It Feels Like
Kryptonite is a body-first strain. Users report relaxation, sleepiness and hunger, with a euphoric mood lift at the start. Leafly notes it can help people through heavy discomfort without total knock-out sleepiness at small doses, though AllBud reviewers describe sleepiness as a common outcome.
That is typical of a strong indica. In small amounts it can work as an evening wind-down, and in larger amounts it tends to end with couch-lock. THC ranges so widely between sources that the label on your batch matters more than the average.
Kryptonite Terpenes, Aroma and Flavor
The aroma is musty and tropical-fruit, with pungent, earthy and skunky notes. The taste leans sweet and sugary, which reviewers compare to Cinderella 99. AllBud also lists berry and grape notes.
Leafly reports myrcene as the dominant terpene, followed by caryophyllene and pinene. Myrcene is associated with earthy, fruity aromas and often shows up in heavy indicas.
- Myrcene: earthy, musky and herbal, also found in mango and hops
- Beta-caryophyllene: peppery and spicy, also found in black pepper and cloves
- Pinene: fresh pine, also found in pine needles and rosemary
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 Kryptonite
Dry mouth, dry eyes and dizziness are the most reported effects. Because it is strong and sedating, avoid driving and start low.
With Kryptonite, as with any strain, a smaller dose usually avoids anxiety or grogginess. Our cannabis safety guide covers what to do if you take too much.
Do People Use Kryptonite for Medical Reasons?
Readers most often say they use Kryptonite for stress, pain and anxiety. AllBud also lists insomnia and depression. These are user reports, not clinical evidence.
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.
Strains Like Kryptonite
- Blue Knight: a listed offspring crossed with Blueberry
- Purple Kush: a heavy indica with a sweet, grape-like profile
- Granddaddy Purple: a sleepy, fruity purple indica
- Bubba Kush: a sedating indica with a similar body feel
- Purple Urkle: a purple indica with a sweet grape taste
Browse more indica strains, the full strain directory, or our guide to cannabis strains.
More Indica Strains to Explore
Kush Cake · Kushberry · LA Confidential · Krishna Kush · Kosher Kush · King Louis XIII · All indica strains
Where to Buy Kryptonite
Dispensary menus change every week, and Kryptonite 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 San Francisco, browse San Francisco dispensaries and check the menus at stores like Gemme Verdi and The Window. In Salem, browse Salem dispensaries and check the menus at stores like Truth Dispensary Center St and Club Pitbull. 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.
Kryptonite FAQ
Is Kryptonite indica or sativa?
Kryptonite is an indica-dominant hybrid. AllBud lists it at roughly 85% indica.
What is Kryptonite a cross of?
Most accounts say Mendocino Purps and Killer Queen. This is a rumored lineage rather than a confirmed one.
How strong is Kryptonite?
Sources list about 16% to 25% THC. Check the lab label on the batch you buy.
Is Kryptonite good for sleep?
Many people find it sedating and relaxing, and sleepiness is a top reported effect.
Who bred Kryptonite?
It is credited to breeders connected to Oaksterdam University in California, but this is not firmly documented.
Is Kryptonite clone-only?
Yes, it is generally described as a clone-only strain, which is why its origin is hard to verify.
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.