Organic Cayenne Pepper Capsules: What Are Scoville Heat Units?
In 1912 an American pharmacist, Wilbur Scoville, sat a panel of tasters down with a chilli dissolved in alcohol and kept diluting it until the last of them stopped feeling the burn [2]. His scale still bears his name, and it measures something no other plant offers in quite the same way: the fire of the capsaicinoids, a small family of compounds led by capsaicin [2]. The plant behind them is Capsicum annuum, a nightshade of the Americas whose wild ancestor, the chiltepin, was shaped into today’s long red cayenne by generations of growers choosing the pods they liked [3].
That history lands on our pouch as two numbers that have nothing to do with each other: 650mg and 100,000 [1]. One is a weight and the other is a heat rating. This guide explains what the plant is, what a Scoville rating tells you and how to compare one cayenne capsule with another, so you know exactly what you are bringing into your daily routine.
Cayenne pepper capsules at a glance
- What it is: certified organic cayenne, the milled whole fruit of Capsicum annuum, in one vegan capsule a day.
- One capsule: 650mg of organic cayenne pepper, with no extract and no ratio to convert.
- The heat rating: 100,000 Scoville heat units, printed on the pouch front.
- Three ingredients: the cayenne, a hypromellose capsule shell and organic brown rice flour.
- Who it suits: adults who want organic cayenne in one vegan capsule a day, with its heat rating printed.
- Price: £8.99 for 90 capsules, three months at about 10p a day.
ORGANIC CAYENNE PEPPER 650MG · 90 VEGAN CAPSULES
£8.99 · 90 servings · 1 capsule daily with water · 650mg of organic cayenne pepper · 100,000 Scoville heat units · certified organic · about 10p a day
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What is cayenne? The plant behind the capsule
Cayenne is a long, thin, red chilli, the fruit of Capsicum annuum, which is the species printed on our pouch front. Chillies are native to the Americas and belong to the Solanaceae, the nightshade family that also gave us the tomato and the potato [3].
Capsicum annuum: from a wild chiltepin to a cultivated pod
Every cultivated chilli of this species descends from a wild progenitor called the chiltepin [3]. When scientists compared the genomes of wild and cultivated plants, they found the footprints of human selection all over them, the mark of growers choosing, season after season, the plants they wanted [3].
Why cayenne pepper burns: capsaicin and its relatives
The heat of a chilli comes from its capsaicinoids [2]. Two of them do most of the work, capsaicin and dihydrocapsaicin, which occur in a ratio of about 6 to 4 [2].
Scoville heat units on a cayenne label: heat, not weight
The two numbers on the front answer two different questions. The 650mg tells you how much milled cayenne is in each capsule, and the 100,000 Scoville heat units tells you how hot it is.
650mg = the weight of milled fruit in one capsule, with no extract ratio to convert · 100,000 = a heat rating, not a weight · £8.99 ÷ 90 = about 10p a day.
Organic Cayenne Pepper 650mg, nutrition panel and pouch front [1]
A rating of 100,000 means a preparation of the fruit had to be diluted about 100,000 times before tasters stopped feeling heat. For comparison, a jalapeño is usually rated in the low thousands, so this is a properly hot chilli.
What the Scoville scale actually measures
Scoville’s original method relied on human tasters, and many laboratory methods have followed since [2]. Whatever the method, the figure describes pungency: it is a heat rating, not an amount of any compound.
Organic cayenne: what the leaf on the pouch covers
The green leaf on the front is the EU organic logo, printed with the control code SK-BIO-003 and the words non-EU agriculture. Both the cayenne and the brown rice flour in the capsule are listed as organic, which places the capsules in our organic range.
How to compare cayenne pepper capsules
You’ll find cayenne in two of our supplements: on its own in our cayenne capsules, and as part of the blend in our apple cider vinegar capsules. Here’s what each label declares, and how the daily cost compares.
Cayenne capsules: milled fruit or extract?
Ours is the whole milled fruit, so the 650mg is simply what the capsule holds. If another label quotes an extract, check whether its figure is the extract itself or a fruit equivalent, because the two are not comparable.
Cayenne pepper with apple cider vinegar: our three-capsule blend
Would you rather take cayenne alongside other botanicals? Our Organic Apple Cider Vinegar 1920mg capsules carry it in our own blend: each serving of three gives you 1,650mg of organic apple cider vinegar, plus 120mg of organic turmeric, 75mg of organic ginger and 75mg of organic cayenne [5].
Our apple cider vinegar guide explains that label. If you’d simply like 650mg of cayenne in a single capsule, our cayenne pouch is the one to go for.
1 capsule · 650mg of organic cayenne pepper, the milled whole fruit · rated 100,000 Scoville heat units on the front · certified organic · vegan capsule
Choose if you want a fixed daily amount of whole cayenne with its heat rating printed · 90 days · £8.99: about 10p a day
3 capsules · 1,650mg organic apple cider vinegar · 120mg organic turmeric · 75mg organic ginger · 75mg organic cayenne · certified organic · vegan capsule
Choose if you want cayenne in our own blend with apple cider vinegar, turmeric and ginger · 60 days · £14.99: about 25p a day
Cayenne supplement labels without a heat rating
Our pouch prints its heat rating on the front: 100,000 Scoville heat units. Not every brand does, which can leave you knowing the weight of the powder but nothing about its heat. When it comes to a chilli, that’s only half the story.
The capsules sit in our cayenne pepper range, alongside the rest of our herbal supplements.
How to take cayenne capsules
The label says one capsule daily with water, and it names no time of day. Swallow the capsule whole and don’t open it, because the powder inside is as hot as the rating suggests.
One capsule, three months of organic cayenne
If one capsule a day suits your routine, a pouch gives you 650mg of organic cayenne a day for three months, at about 10p a day.
SHOP ORGANIC CAYENNE PEPPER CAPSULES
Cayenne pepper capsules FAQs
1. What are the benefits of cayenne pepper capsules?
UK law lets a food supplement carry only the health claims authorised on the Great Britain register, and none has been authorised for cayenne pepper, Capsicum or capsaicin [4]. What you can be sure of is on the label: 650mg of certified organic milled cayenne in each capsule, rated at 100,000 Scoville heat units [1].
2. What does 100,000 Scoville heat units mean?
It is a measure of heat. In Scoville’s test a chilli preparation was diluted until tasters no longer felt it burn, and a rating of 100,000 means about 100,000 dilutions [2].
3. Is the cayenne pepper in the capsule an extract?
No. The ingredients list says organic cayenne pepper powder, which is the milled whole fruit, so there is no extract ratio behind the 650mg.
4. Cayenne pepper capsules or powder: what’s the difference?
Capsules and powder both start from the milled fruit of the same plant, Capsicum annuum. What our capsule gives you is a measured 650mg in every one, swallowed whole with water, with the EU organic leaf and its heat rating printed on the front [1].
5. Will cayenne capsules burn my mouth?
Not if you swallow them whole with water, as the label directs. The capsule shell keeps the powder away from your mouth, which is why you should not open it.
6. What is Capsicum annuum?
It is the botanical name of the species that includes cayenne, printed on our pouch front. It belongs to the nightshade family, alongside the tomato and the potato [3].
7. Are cayenne pepper capsules vegan?
Yes. The shell is hypromellose, which is plant-derived, and the pouch front says vegan capsules. That’s why you’ll find them in our vegan range.
8. Can I take cayenne every day?
Yes, the label directs one capsule daily, so it is made for daily use; just don’t take more than that. It is not intended for children, or for pregnant or breastfeeding women. If you have a medical condition or take any medication, the label asks you to consult a doctor before use.
9. How much capsaicin is in cayenne capsules?
The label gives the heat rather than a capsaicin figure: 100,000 Scoville heat units. That rating is driven by the capsaicinoids, the family of compounds led by capsaicin [2].
If a fixed daily amount of whole organic cayenne suits you, and you want its heat rating clearly stated, then one pouch of Organic Cayenne Pepper 650mg provides a three-month supply for about 10p a day. As you now know, the weight in milligrams and the Scoville rating tell you two different things, and our pouch prints both on the front.
References
Checked against the product label, the GB Nutrition and Health Claims Register and the published papers cited below, September 2026.
[1] Alpha01. Organic Cayenne Pepper 650mg, 90 Capsules: pouch front, nutritional information panel, ingredients, suggested use, caution and price. Accessed 2026-09-28. View Source
[2] Crapnell RD, Banks CE. Electroanalytical overview: the pungency of chile and chilli products determined via the sensing of capsaicinoids. Analyst. 2021;146(9):2769-2783. View Source
[3] Qin C, Yu C, Shen Y, et al. Whole-genome sequencing of cultivated and wild peppers provides insights into Capsicum domestication and specialization. Proceedings of the National Academy of Sciences. 2014;111(14):5135-5140. View Source
[4] Department of Health and Social Care. Great Britain nutrition and health claims (NHC) register, GOV.UK (no authorised claim for cayenne pepper, Capsicum or capsaicin). Accessed 2026-09-20. View Source
[5] Alpha01. Organic Apple Cider Vinegar 1920mg, 180 Capsules: pouch front, nutritional information panel, ingredients, suggested use and price. Accessed 2026-09-28. View Source
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