If you have shopped for hemp products lately, you have probably seen a confusing alphabet soup: Delta-8, Delta-9, Delta-10, THC-P and more. They are all forms of THC, but they are not the same. This beginner's guide breaks down what each one is, how strong it is, and how to choose the right one for you.
This article is for general educational purposes and is not medical advice. Cannabinoid laws vary by state — always check your local regulations.
Affiliate disclosure: MyCannabisReviews may earn a commission from qualifying purchases made through links on this page, at no extra cost to you. We do not sell these products directly.
First, What Do These Names Mean?
“Delta” refers to the position of a double bond in the THC molecule. Shifting that bond even slightly changes how the compound interacts with your body. THC-P is different again — it has a longer molecular “tail” that lets it bind to your receptors far more strongly. Small structural differences, big differences in effect.
Delta-9 THC
Delta-9 is the classic, best-known form of THC — the primary compound responsible for the traditional cannabis “high.” Thanks to the 2018 Farm Bill, hemp-derived Delta-9 products are federally legal as long as they contain 0.3% or less Delta-9 by dry weight, which is why gummies and drinks dosed at around 10mg are so popular. It offers the most well-rounded, euphoric, full-body effect of the group. You will find quality hemp Delta-9 gummies from Diet Smoke, Galaxy Treats, and CBDfx. Browse our full Delta-9 products collection to compare. One caveat on the legality line above: that is the test as the 2018 law wrote it, and a federal change already signed into law replaces it with a total-THC test, covered in a section below.
Delta-8 THC
Delta-8 is often described as Delta-9's milder, mellower cousin. Users typically report a smoother, more relaxed and clear-headed experience with less anxiety and paranoia than Delta-9 can sometimes cause. It is a popular choice for beginners or anyone wanting a gentler effect. Two cautions before you start. Delta-8 is the category the coming federal change bears on most directly, for the reasons set out below, and it is already unavailable in a good many states — Koi's own delta-8 page would not ship to California or Oregon when we read it on 18 October 2026, and its FAQ named a longer list of states it will not ship to at all. Explore Delta-8 products and check out EMPE USA for Delta-8 options.
Delta-10 THC
Delta-10 is the lightest of the Delta trio. It is generally reported to be more uplifting and energizing — sometimes compared to a sativa-leaning experience — with lower potency than both Delta-8 and Delta-9. People often reach for it during the daytime when they want a mood lift without heavy sedation.
THC-P
THC-P (tetrahydrocannabiphorol) is the powerhouse of the group. Because of its longer molecular chain, it can bind to the body's cannabinoid receptors many times more strongly than Delta-9, making it dramatically more potent milligram-for-milligram. THC-P is strictly for experienced users — start with a very small amount and go slow.
Potency, From Gentlest to Strongest
- Delta-10 — mild, uplifting, daytime-friendly.
- Delta-8 — mellow, relaxing, beginner-friendly.
- Delta-9 — the classic, well-balanced high.
- THC-P — extremely potent, for experienced users only.
Where These Four Stand Federally
Everything above describes how these cannabinoids behave, not how the law treats them, and on that second question they are not in the same position. A federal change already signed into law rewrites the definition these products are sold under, and it reaches this page's four cannabinoids unevenly.
Two parts of it matter to a beginner. The first is the test itself: the 2018 standard measured delta-9 THC only, and the new one measures total THC. The second is a limit of 0.4 mg combined total per container, covering total THC plus other cannabinoids the FDA is required to list as having similar effects, a list the FDA has never published. Container is defined in the statute itself as the innermost wrapping, packaging, or vessel in direct contact with the product, so for gummies it is the jar rather than the carton it ships in.
Set that against what these products actually hold. Koi describes its delta-8 jar as 20 count at 500 mg of delta-8; our arithmetic puts that over a thousand times the 0.4 mg figure. A 5 mg delta-9 gummy is gentler by any ordinary measure, and twenty of them in a jar still comes to 100 mg, which is again our arithmetic, from the two figures Medterra prints. A limit set below the dose almost everything on the market carries is not a rule aimed at strong products.
The dates are where this page's four cannabinoids part company. The law delayed most of the new definition but not all of it, and the part that was not delayed covers cannabinoids a cannabis plant cannot naturally produce. Delta-8 and delta-10 are usually made by converting CBD rather than extracted from the plant in any quantity, which is why the question of which date governs them is genuinely contested. We read it as 11 December 2026, and that is the minority reading among the law firms we have read, several of which put the converted cannabinoids at 12 November 2026 instead. If you are buying converted delta-8 or delta-10, the prudent assumption is the earlier date. The split is real rather than a typo, and we follow it day by day on our federal hemp THC deadline tracker, with our guide to which cannabinoids lose hemp status setting out which products each date covers.
The brands are pricing it in, and not uniformly. When we read Koi's delta-8 page on 18 October 2026 it carried the banner BAN Blowout Sale Up to 50% OFF and the line Stock up before the ban. Save more as you spend more. on the same catalogue that tells shoppers Koi's cannabinoid products are legal under the 2018 Farm Bill and that they carry no more than 0.3 percent delta-9 THC. Medterra's gummy page printed no deadline language at all that day, and still described its gummies as legal to ship to all 50 states under the 2018 Farm Bill. Each of those statements was written accurately; it is the legal test underneath them that is moving.
Where to try each cannabinoid
- Delta-8: Galaxy Treats Delta-8 gummies or Diet Smoke Delta-8 gummies
- Delta-9: Galaxy Treats Delta-9 gummies or Diet Smoke Delta-9 gummies
- THC-P: Galaxy Treats THC-P gummies — start at a quarter piece
- Blended CBD + THC: JustCBD CBD + THC gummies for a gentler, more balanced feel
Save 25% at Galaxy Treats with code 25LIFE and 25% at JustCBD with code LIFE25. We may earn a commission if you buy through these links, at no extra cost to you.
Which One Should a Beginner Choose?
If you are new, Delta-8 or a low-dose (around 5mg) hemp Delta-9 gummy is the friendliest starting point. Save Delta-10 for daytime energy and steer clear of THC-P until you know exactly how your body responds to THC. Whatever you choose, buy only from brands that publish third-party lab results — every option in our cannabis product reviews is vetted for exactly that.
Two starting points from the brands we score
- A low-dose delta-9 start: Medterra Daily Delight 5mg THC Gummies — 5 mg THC with 25 mg CBD per gummy, $39.99 one-time or $29.99 on Subscribe & Save 25%, with Single 20 Count the base pack. Read on its product page on 18 October 2026, where no price was printed beside any individual count option, so treat the multi-pack pricing as unconfirmed. Our Medterra review scores the brand 8.8.
- A delta-8 start: Koi Delta 8 THC Gummies — 25 mg delta-8 per gummy, in a jar Koi describes as 20 count at 500 mg, with 60 and 100 count options as well. On 18 October 2026 the page showed $89.99 as a one-time purchase without tying it to a count option, so we give no per-gummy figure. Note the state list above, and our Koi review scores the brand 8.6.
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Affiliate disclosure: MyCannabisReviews may earn a commission from qualifying purchases made through links on this page, at no extra cost to you. We do not sell these products directly. Prices and availability change; check the brand's own page before ordering. We did not verify stock.
Frequently Asked Questions
Is delta-8 weaker than delta-9?
Generally yes. Most people describe delta-8 as noticeably milder and more clear-headed than an equivalent milligram amount of delta-9, which is why it is often suggested for people who find regular THC too intense.
How much THC-P should a first-timer take?
Far less than you would take of delta-9. THC-P is extremely potent by weight, so products usually contain only a few milligrams. Starting with a quarter or half of a single piece and waiting a full two hours is the sensible approach.
Will any of these show up on a drug test?
Assume yes. Standard urine screens look for THC metabolites and do not distinguish between delta-8, delta-9, delta-10 or THC-P. If you are subject to testing, avoid all of them.
Which cannabinoid lasts the longest?
Edible forms of all four last longer than inhaled forms, typically four to eight hours. THC-P tends to be reported as the longest lasting, and delta-10 the shortest.
