THCA and THCP may sound similar, but they are two distinct cannabinoids. They differ in their chemical structure, how naturally abundant they are in the cannabis plant and how much research is currently available on each one.
Understanding these differences can make it easier to navigate the growing number of cannabinoid terms used online. In this guide, we compare THCA vs THCP, including their natural occurrence, molecular structure, research history and legal status.
At Kushte, we offer a carefully selected range of Type 1 and Type 2 THCA flower for brewing as hemp tea. Browse our impressive range of THCA flowers to buy, or if you need help choosing a product or have a question, please contact us.
What is THCA?
THCA, or tetrahydrocannabinolic acid, is a naturally occurring cannabinoid found in raw and minimally processed hemp plants. It is one of the compounds that develops naturally within the flower and forms part of its wider cannabinoid profile.
Although THCA and THC have similar names, they are not the same compound. THCA contains a carboxylic acid group, which gives it a different chemical structure from delta-9 THC. In its raw form, THCA does not produce psychoactive effects and is the natural acidic form found in the plant.
All Kushte THCA flower is sold solely for brewing as hemp tea at temperatures of no more than 100°C.
For a more detailed overview, read What Is THCA? A Beginner’s Guide.
What is THCP?
THCP, short for tetrahydrocannabiphorol, is a naturally occurring cannabinoid that may also be written as THC-P. Unlike THCA, which can be naturally abundant in suitable raw hemp flower, THCP has generally been identified only in trace amounts.
Although THCP has a similar structure to delta-9 THC, it is a separate compound rather than an acidic form of the same cannabinoid. Researchers first isolated and characterised it in 2019.
One of the main features that sets THCP apart is its longer alkyl side chain. Traditional THC has a five-carbon chain, while THCP has a side chain made up of seven carbon atoms.
Current research remains limited and does not support firm conclusions about THCP effects.
Put simply, THCP is a much less common and less well-understood cannabinoid than THCA, THC or CBD.
THCA vs THCP compared
Although THCA and THCP are both naturally occurring cannabinoids, they differ in their chemical structure, natural abundance and the amount of research currently available.
| Feature | THCA | THCP |
|---|---|---|
| Full name | Tetrahydrocannabinolic acid | Tetrahydrocannabiphorol |
| Type of cannabinoid | An acidic cannabinoid | A separate cannabinoid related in structure to THC |
| Natural occurrence | Commonly found in suitable raw hemp flower | Found naturally in trace amounts |
| Main chemical feature | Contains a carboxylic acid group | Contains a seven-carbon alkyl side chain |
| Relationship to THC | Has a similar chemical structure but includes an additional acid group | Has a similar core structure with a longer side chain |
| Research history | Has been studied for considerably longer | First isolated and characterised in 2019 |
| Current research | Supported by a wider body of research | Research remains limited |
The main difference is their chemical structure. THCA contains a carboxylic acid group, while THCP has a longer side chain made up of seven carbon atoms. These structural differences mean they are separate cannabinoids with different characteristics.
Why the structural difference between THCA and THCP matters
The chemical structures of THCA and THCP influence how they interact with cannabinoid receptors. THCA contains a carboxylic acid group, while THCP has a longer seven-carbon alkyl side chain.
Researchers have studied how THCP’s longer side chain interacts with cannabinoid receptors, including CB1 receptors within the body’s endocannabinoid system. These findings have attracted scientific interest, but receptor-binding data alone does not establish the wider effects of THCP.
Are THCA and THCP naturally occurring cannabinoids?
Both THCA and THCP occur naturally in the cannabis plant, but they are usually present in very different quantities.
- THCA can be one of the main cannabinoids found in suitable hemp and cannabis strains, particularly in raw flower before extensive processing. It develops naturally within the plant and is concentrated mainly in the trichomes covering the flower.
- THCP has also been identified as a naturally occurring cannabinoid, although it is generally found only in trace amounts.
This difference in natural abundance is one of the clearest distinctions between THCA and THCP.
What cannabinoid lab reports can tell you
A certificate of analysis can help confirm a product’s cannabinoid profile, but it is important to check exactly what the laboratory tested for.
When reviewing a report, look for:
- The cannabinoids included in the testing panel
- The measured level of each cannabinoid
- A batch number matching the product
- The testing date and laboratory details
- Relevant contaminant checks, where applicable
A standard report for THCA flower may show THCA, delta-9 THC, CBD and other cannabinoids without listing THCP. As THCP naturally occurs in very small quantities, it may need to be specifically included within the laboratory’s testing panel to be identified and measured.
For more advice on sourcing, freshness and laboratory information, read How to Identify Premium-Quality THCA Flower for Tea.
What is the legal status of THCA and THCP in the UK?
For a detailed look at THCA’s legal status in the UK, read Is THCA Legal in the UK? Everything You Need to Know.
People searching “THCP legal” should be aware that the position may depend on the ingredients, formulation and complete composition of the individual product. Customers should check the available product information and seek independent professional advice if they are uncertain.
Key takeaways: THCA and THCP are separate cannabinoids
THCA stands for tetrahydrocannabinolic acid. It is a naturally occurring acidic cannabinoid with a carboxylic acid group and is commonly found in suitable hemp flower.
THCP stands for tetrahydrocannabiphorol. It is a separate naturally occurring cannabinoid with a longer seven-carbon alkyl side chain and has generally been detected in trace amounts.
Research into THCP remains limited, so claims about its effects or potency should not be presented as established facts.
When buying cannabinoid products, focus on transparent sourcing, clearly stated ingredients, batch-specific laboratory reports and reliable product information.
Explore THCA flower at Kushte
At Kushte, we offer premium, American-imported THCA flower selected specifically for brewing as hemp tea. Our collection includes Type 1 THCA flower and balanced Type 2 varieties, giving customers a choice of cannabinoid and terpene profiles.
Browse our THCA flower collection or contact us if you have questions about our products, available lab reports or ordering.
Frequently asked questions
No. THCA is an acidic cannabinoid containing a carboxylic acid group. THCP is a separate cannabinoid with a seven-carbon alkyl side chain. Although both are related to the wider THC family, they have different chemical structures and are not interchangeable.
THCP has been identified naturally in Cannabis sativa, although it is generally detected in trace amounts.
Research into THCP is still at an early stage. Existing studies have focused mainly on its chemical structure and cannabinoid-receptor activity, so there is not yet an established body of controlled research.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always seek guidance from a healthcare provider before starting any new supplement.
