Ignore the Front of the Bottle — the Honest Bits Are on the Back

We have a small ritual in the CBD Sisters kitchen: someone brings round a new bottle, and before anyone gets to say a word about it, we turn it round. Front label down. Back label up. Because the front is a mood board and the back is a set of facts, and only one of those is going to tell you whether you've spent £25 wisely.

This isn't a suspicious way to live. It's just that "natural", "premium" and "pure" are doing an enormous amount of unpaid labour on the front of most CBD products, and none of them are regulated words in any meaningful sense. So here's the order we go in. It takes about ninety seconds once you've done it twice.

First, do the bottle maths (the bit almost everyone skips)

Big number on the front, small print on the back. The front will say something like "1000mg". The back will tell you how big the bottle is, and how many drops the brand suggests. Those three numbers are the whole story.

A 10ml bottle holds roughly 200 drops — that's the standard, give or take. So 1000mg across 200 drops is about 5mg per drop. Now look at a 30ml bottle advertised at 1500mg. Sounds stronger, doesn't it? It isn't. That's 50mg per millilitre against 100mg per millilitre in the first bottle. The bigger bottle is half the strength and probably twice the price.

This is not usually a con. It's just that bottle size and total milligrams are two different facts, and brands know which one looks better in an Instagram grid. The number you actually want is milligrams per millilitre, or milligrams per drop if the brand is kind enough to give it. If a label makes that impossible to work out, that's your first small yellow flag.

Is it CBD, or is it fancy seed oil?

Check the ingredients list and be pedantic. "Hemp oil", "hemp seed oil" and "cannabidiol" are not the same thing, and the first two can legally appear on a bottle that contains essentially no CBD at all. Hemp seed oil is cold-pressed from seeds; it's a perfectly nice source of omega fats and it has no business being sold at £30 as a CBD product.

What you're looking for, plainly: cannabidiol, with a number attached. Then, further down, whether it's described as full spectrum, broad spectrum or isolate. Full spectrum means trace cannabinoids including THC; broad spectrum means the THC has been removed; isolate means just the one molecule. None of these is automatically better — they're different products for different people — but if the label won't tell you which you've bought, it's hiding something fairly basic.

Our other small irritant: carrier oils listed after "natural flavouring". Hemp seed oil as a carrier is fine. Hemp seed oil as the headline ingredient is a different conversation entirely.

The piece of paper that changes everything

A batch certificate — sometimes called a certificate of analysis, or COA — is a lab report on one specific batch of one specific product. Ask for it. A confident brand will have it on the website within two clicks.

What should be on it:

• A batch number that matches the bottle in your hand. A certificate for a different batch is decoration.
• The cannabinoid profile — how much CBD is actually in there, ideally measured independently.
• THC content, stated as a number.
• Contaminant testing — heavy metals, pesticides, solvents, mould. This is the bit people forget, and it's arguably the most useful part.
• A date and the name of the lab. Third-party is the standard to look for; a brand testing its own product in its own shed is not the same thing.

If you ask for it and get a vague email about "our rigorous quality processes", that's not a certificate. That's a paragraph.

THC: the number nobody prints on the front

In the UK, CBD products are expected to contain no more than 1mg of THC per container, with the extract itself capped around 0.2% THC. That's a very small amount, and for most people it's not the point — but it matters if you're drug-tested at work, if you're driving, or if you're just someone who'd like to know what they're putting in their tea.

The label should tell you. Not in a panic-inducing way, just plainly, alongside the CBD figure. "THC: not detected" is also a perfectly good answer, as long as it's on the certificate too.

Red flags, gathered in one uncharitable pile

We keep this list on the fridge, metaphorically:

• No mg per ml anywhere. Total milligrams only, bottle size buried.
• "Hemp extract" with no cannabinoid numbers. Could be anything. Might be nothing.
• "Certified organic", which for CBD in the UK is not a phrase with the regulatory weight it implies.
• Suggested doses given in drops only — "take 1–2 drops" is meaningless without knowing the mg per drop.
• Health claims. CBD is not licensed as a medicine in the UK. A brand promising to cure your anxiety is a brand that hasn't read the rules, which does not fill us with confidence about the batch testing.
• No batch number on the bottle at all. Then there is nothing for a certificate to match.
• A phone number and nothing else on the contact page.

What a good label actually looks like

Slightly boring, in our experience. Clear mg per ml. A named carrier oil. A batch number. A lab name. Directions that mention a starting dose and suggest you build slowly. A mention of the FSA's novel foods list, or at least a company name you can find on it. No promises about your sleep, your menopause or your Sunday scaries.

The unglamorous truth is that the brands with the clearest labels are usually the ones least interested in romance. They've done the testing, they've printed the numbers, and they'd rather you bought on facts than on a picture of a lavender field.

So next time you're stood in a shop squinting at a bottle, turn it over. If the back is fuzzier than the front, put it down and walk to the till empty-handed. There's no shame in it — and the kettle's on when you get home.

This is general information, not medical advice. CBD isn't suitable if you're pregnant or breastfeeding, and it can interact with some prescription medicines, so have a word with your GP or pharmacist if you're unsure. UK rules and labelling standards change — check the FSA's current guidance before you buy.