The strains with the highest THC levels, the psychoactive component of cannabis.
THC, acronym for TetraHydroCannabinol, is the primary cannabinoid responsible for the effects of cannabis. It is secreted by resin glands known as trichomes, and its concentration directly influences the psychoactive properties of both cannabis herb and resin.
In addition to its psychotropic effects, THC has therapeutic properties that make it valuable in treating various conditions. Its benefits have led to the official recognition of cannabis and its derivatives as medicine in many countries, including the US and Canada.
Cannabis is used by many patients for its positive effects in treating a wide range of diseases and symptoms, such as:
Here, we offer a selection of regular and feminised strains with THC levels exceeding 25%, classifying them as highly potent. To put this in perspective, the average THC level in many strains today is around 15-20%, which is already considered THC-rich.
While THC acts in synergy with other cannabinoids like CBD or THCV, as well as terpenes, a high THC concentration remains a strong indicator of a strain's potency.
Some of the most potent strains include Gorilla Glue, which can reach a THC level up to 30%, Y Griega up to 27%, or Blisful Wizzard, which can reach an astounding THC level up to 34%.
You can find the most TetraHydroCannabinol-rich strains in our catalogue here. Enjoy them!
Anesia Seeds
From 38.00€
Growers Choice
From 30.00€
Auto Critical Mass - Advanced Seeds
Alchimia is happy to present Auto Critical Mass by Advanced Seeds, the automatic version of the famous [...]
Critical Mass - Advanced Seeds
Alchimia is delighted to present Critical Mass by Advanced Seeds, an early, easy-to-grow, and highly productive cannabis. It is ideal for those se [...]
Blue Zushi Limited Edition - Growers Choice
Alchimia is glad to present Blue Zushi by Growers Choice, a cannabis strain with complex terpenes and smooth smoke. It offers berries, caramel or even cheese and m [...]
Platinum Mimosa Cookies Double XL Auto - Growers Choice
Alchimia is pleased to present Platinum Mimosa Cookies Double XL Auto by Growers Choice, an auto-flowering plant with large size, high yields and [...]
Frozen Black Cherry - Anesia Seeds
Alchimia is glad to present Frozen Black Cherry by Anesia Seeds, a variety characterised by berries aroma, an exceptional resin production, a THC [...]
Triploid F1 Iced Sangria - Growers Choice
Alchimia is delighted to present Triploid F1 Iced Sangria by Grower's Choice, a strain offering all the advantages of a triploid variety (higher y [...]
Banana Purple Punch Auto - Fast Buds
Alchimia is glad to present Banana Purple Punch Auto by Fast Buds Seed, one of the auto-flowering plants with the highest THC concentration up to 30% [...]
Alchimia is delighted to present C.Banana by Philosopher Seeds, a variety based on the original Banana OG, a plant with a high THC content and a s [...]
Fat Bastard Auto - Blimburn Seeds
Alchimia is pleased to present Fat Bastard Auto by Blimburn Seeds, an auto-flowering strain developed to offer an easy to grow, productive, very fragrant, and equa [...]
Permanent Whitemarker Auto - Growers Choice
Alchimia is delighted to present Permanent Whitemarker Auto by Growers Choice, a powerful automatic plant with high THC content and very high yields. This variety [...]
Alchimia is happy to present Fat Bastard by Blimburn Seeds, an easy-to-grow cannabis strain that gives off a fruity, skunky aroma. It is character [...]
Triploid F1 Tropicana Cherry - Growers Choice
Alchimia is delighted to present Triploid F1 Tropicana Cherry , a revolutionary 50/50 hybrid strain developed by Dutch seedbank Growers Choice. It [...]
C.Banana Auto - Philosopher Seeds
Philosopher Seeds is pleased to present its new auto-flowering C.Banana. This strain is renowned for [...]
Alchimia is happy to present Frostbanger Auto by Fast Buds, a cannabis strain with high THC levels and sweet, creamy aromas. An encounter between Chemdawg and Gori [...]
Triploid F1 Sticky Wasabi - Growers Choice
Alchimia is delighted to present Triploid F1 Sticky Wasabi, a hybrid cannabis strain developed by Growers Choice, combining advanced genetics with innovative tripl [...]
Auto Bruce Banner XXL - Advanced Seeds
Alchimia is happy to present Auto Bruce Banner XXL by Advanced Seeds, the automatic version of [...]
Alchimia is glad to present Imperium X by Anesia Seeds, one of the cannabis varieties with the highest THC content on the market, [...]
Permanent Marker - Philosopher Seeds
Philosopher Seeds has hybridised the renowned Permanent Marker cannabis strain with Lemon Cherry Gelato, the same parental used in [...]
Lemon Cherry Cookies Auto - Fast Buds
Alchimia is glad to present Lemon Cherry Cookies Auto by Fast Buds, a strain representing the pinnacle of modern auto-flowering strains, combining exceptional pote [...]
Strawberry Banana Auto - Advanced Seeds
Alchimia presents Auto Strawberry Banana by Advanced Seeds, the automatic version of the famous Strawberry Banana. It is a vigorous plant [...]
Key Lime Pie x Do-Si-Dos - Philosopher Seeds
Alchimia is pleased to present Key Lime Pie x Do-Si-Dos by Philosopher Seeds, a variety based on Cookies genetics. It offers sweet exotic lime cream aromas, hard b [...]
Alchimia is delighted to present GG#4 Auto by Philosopher Seeds, an automatic version of Gorilla G. #4, the acclaimed US cannabis strain. It is a variety with [...]
Chaos Cake Auto - Anesia Seeds
Alchimia is pleased to present Chaos Cake Auto, a high-yielding auto-flowering cannabis strain with high THC content, sweet berry flavours, and excellent suitability for extraction [...]
Fast Buds presents the new Guava Auto marijuana strain, a sweet and fruity genetics ideal for all novice growers or those who cannot keep a close [...]
Frozen Black Cherry Auto - Anesia Seeds
Anesia Seeds presents here Frozen Black Cherry Auto, the fast and productive Autoflowering version of its [...]
Tropicanna Poison XL Auto - Sweet Seeds
Alchimia is happy to present Tropicanna Poison XL Auto by Sweet Seeds, a new auto-flowering strain belonging to the Red family. It is the auto version of [...]
Hardcore Gelato - Philosopher Seeds
Alchimia is happy to present Hardcore Gelato by Philosopher Seeds, a genetics with a distinguished and tropical bouquet, with creamy and sweet Kushy nuances remini [...]
Platinum Mimosa Cookies Fast Version - Growers Choice
Alchimia is delighted to present Platinum Mimosa Cookies Fast by Growers Choice, a high-yielding cannabis with sweet and citric aroma, and very re [...]
This marijuana strain developed by the team of Barney's Farm is a strange mix that comes from two famous genetics: the Critical Kush is a crossing between the highly desired [...]
Alchimia is delighted to present Oreoz S1 by Philosopher Seeds, a cannabis strain renowned in the USA for its high THC content and long-lasting ef [...]
Now available at Alchimia, feminised seeds of B-45, a collaboration between Silent Seeds and the great Booba, a renowned rapper on the French scen [...]
Gorilla Zkittlez - Philosopher Seeds
Alchimia is happy to present Gorilla Zkittlez by Philosopher Seeds, a hybrid created from two famous US genetics. This variety will delight beginners for its produ [...]
