What is THCp?
Tetrahydrocannabiphorol, or THCp, is a naturally occurring phytocannabinoid found in very low concentrations in the cannabis plant [1.5.3, 1.8.4]. It was first identified by Italian researchers in 2019 [1.5.3]. What makes THCp notable is its chemical structure; it has a longer alkyl side chain with seven carbon atoms, compared to the five-carbon chain of traditional Delta-9 THC [1.5.3, 1.5.5]. This structural difference allows it to bind more effectively to the body's endocannabinoid receptors, particularly CB1 receptors, with some research suggesting it has 33 times the binding affinity of THC [1.5.3, 1.8.6]. This high affinity is the reason for its potent psychoactive effects, which are reported to be much stronger and longer-lasting than those of THC [1.5.4, 1.5.1].
Because THCp occurs in such trace amounts naturally, most commercial THCp is synthesized from hemp-derived CBD to create usable quantities for products like vapes, edibles, and tinctures [1.8.4].
Will THCp Show Up on a Drug Test?
The short answer is yes, it is very likely that THCp will show up on a drug test [1.7.4, 1.7.5]. Standard drug screenings, especially urine tests, are not designed to detect specific cannabinoids like Delta-9 THC or THCp. Instead, they test for the presence of THC metabolites, primarily THC-COOH [1.7.1, 1.7.3]. Since THCp is a structural analog of THC, the body metabolizes it into similar byproducts [1.7.1]. Consequently, these tests cannot distinguish between the use of THCp, Delta-8 THC, or Delta-9 THC, and consumption of THCp can trigger a positive test result [1.7.3, 1.7.4]. If you are subject to drug testing, it is strongly advised to avoid using THCp and other related cannabinoids [1.5.3, 1.7.1].
Factors Influencing THCp Detection Time
The question of exactly how long THCp remains detectable is complex, with no single answer. It depends on a combination of physiological and lifestyle factors, much like with traditional THC [1.4.2].
- Frequency of Use: This is the most significant factor [1.2.1, 1.4.4]. Chronic or heavy users will have detectable metabolites for much longer than occasional users because cannabinoids are fat-soluble and accumulate in the body's fatty tissues [1.4.2, 1.4.4].
- Dosage and Potency: Higher doses and more potent products lead to a higher concentration of metabolites in your system, extending the time needed for elimination [1.2.2, 1.4.1].
- Metabolism: Each individual's metabolic rate affects how quickly their body processes and excretes compounds. A faster metabolism generally leads to a shorter detection window [1.2.2, 1.4.5].
- Body Fat (BMI): Since THC and its analogs are stored in fat cells, individuals with a higher body fat percentage may retain these compounds for longer periods [1.4.4, 1.4.6]. The metabolites are slowly released back into the bloodstream over time [1.4.2].
- Method of Consumption: Inhaled THCp (vaping, smoking) leads to a rapid peak in the bloodstream and faster initial clearance compared to edibles [1.2.1]. Edibles must be processed by the liver, which can result in a delayed onset and potentially a longer elimination half-life for the metabolites [1.2.1].
- Hydration and Diet: While staying hydrated can help dilute urine, it does not significantly speed up the elimination of fat-stored metabolites. Time is the only guaranteed method [1.6.4, 1.4.5].
Detection Windows by Test Type
The type of drug test being administered is a critical factor, as each has a different window of detection. The following are estimates for THCp based on data for traditional THC [1.7.1, 1.2.1]:
- Urine Tests: This is the most common method for workplace and legal testing [1.2.3].
- Single/Infrequent Use: 3-5 days [1.2.1].
- Moderate Use (2-4 times/week): 7-14 days [1.2.1, 1.2.6].
- Heavy/Daily Use: 15-30 days or more [1.2.1, 1.2.4].
- Blood Tests: These tests are typically used to detect very recent use, as they measure active cannabinoids in the plasma [1.2.1]. THCp can be detected within hours of consumption and may remain for a few days up to a week in heavy users [1.2.2, 1.2.1].
- Saliva Tests: Saliva tests also detect recent use, typically within the last 24-48 hours. Some tests may detect use for up to 72 hours [1.2.3, 1.2.2].
- Hair Follicle Tests: Hair tests have the longest detection window, capable of showing cannabinoid use for up to 90 days or longer [1.2.3, 1.2.2]. These tests analyze metabolites that have been incorporated into the hair shaft and are often used to detect long-term patterns of use [1.3.5].
THCp vs. THC: A Comparison
| Feature | THCp (Tetrahydrocannabiphorol) | Delta-9 THC (Tetrahydrocannabinol) |
|---|---|---|
| Potency | Considered significantly more potent; binds to CB1 receptors with up to 33x higher affinity [1.5.3, 1.5.4]. | The standard psychoactive cannabinoid; has a five-carbon side chain [1.5.3]. |
| Natural Occurrence | Found in trace amounts (less than 0.1%) in cannabis plants [1.5.3, 1.8.3]. | The most abundant psychoactive cannabinoid in marijuana, can be up to 30% [1.8.3]. |
| Effects | Reported to be more intense, euphoric, and potentially longer-lasting [1.5.1, 1.5.4]. | Well-known for its euphoric, relaxing, and appetite-stimulating effects [1.5.5]. |
| Drug Testing | Very likely to cause a positive result on standard tests for THC metabolites [1.7.3, 1.7.4]. | The primary target of most standard cannabis drug tests [1.2.3]. |
| Legality | Federally legal if derived from hemp containing <0.3% Delta-9 THC, but state laws vary [1.8.1, 1.8.2]. | Federally illegal, though legal for medical or recreational use in many states [1.8.3]. |
Conclusion
Due to its structural similarity to THC and its potent nature, THCp poses a significant risk for anyone subject to drug testing. Its metabolites are indistinguishable from THC's in standard tests, and it will likely result in a positive screening [1.7.1, 1.7.4]. The detection window can range from a few days for a first-time user to over a month for a chronic, heavy user [1.2.1]. Factors like metabolism, body fat, dosage, and the type of test all play a crucial role in determining how long THCp stays in your system [1.2.2]. The only certain way to pass a drug test is to abstain from all THC analog products for a sufficient period, which could be 30 days or more for frequent users [1.2.2, 1.7.1].
Disclaimer: This article is for informational purposes only and does not constitute medical or legal advice. Consult with a healthcare professional before using any cannabinoid product. The legality of THCp is subject to change and varies by jurisdiction. [1.8.5]
