Are Black Friday Deals Worth It? How to Spot a Fake Deal (CBD and Supplements)

Are Black Friday deals worth it?

Some are, but many aren’t the bargain they look. In its November 2025 investigation, Which? tracked 175 home, tech and health products at eight big UK retailers for a year. It found 83% were the same price or cheaper at least once outside the four-week Black Friday window, and none were at their lowest price on Black Friday itself. It also found “was” prices that had only been charged for a handful of days before the sale.

That doesn’t mean you should avoid Black Friday. It means you should check the deal rather than trust the banner, especially if you buy something regularly and want to stock up.

Black Friday 2026 dates (UK)

Black Friday is the Friday after US Thanksgiving, and UK retailers follow the same date. In 2026 that is Friday 27 November, and the sales weekend ends on Cyber Monday, 30 November. Many shops start earlier and some run offers into December, so the date on the banner matters less than the price on the day.

What is Fake Friday?

Fake Friday is the nickname UK retail marketers and Google’s retail team use for the Friday a week before Black Friday. It grew because UK shoppers aren’t always sure when Black Friday falls, so many start searching for deals early, and some brands now launch their offers that day. In 2026 it is Friday 20 November.

It isn’t an official sale day, and not every shop takes part. For shoppers it is most useful as a benchmark: note the price of anything you plan to buy on Fake Friday, then compare it a week later. If the “Black Friday” price is the same, the deal wasn’t special. If a price goes up between the two Fridays, treat the later discount with suspicion.

7 Black Friday tricks to watch for

1. Inflated “was” prices. A higher price charged briefly before the sale so the discount looks bigger.
2. Fake countdown timers. Timers that reset, or “ends tonight” offers that run all week.
3. False scarcity. “Only 3 left” or “20 people are viewing this” messages that aren’t true.
4. Smaller or weaker products. A cheaper pack that contains less, or a lower strength, sold as a deal.
5. Hidden fees. Delivery or “service” charges added at checkout.
6. “Up to” discounts. “Up to 50% off” where only one or two items are actually 50% off.
7. Subscription traps. A cheap first order that rolls into a full-price subscription that’s hard to cancel.

The genuine deal checklist

Are supplement and CBD Black Friday deals worth it?

Often, yes, if it’s something you already take. Supplements and CBD oils are things many people buy month after month, so a genuine saving on your usual product is worth more than a discount on something you hadn’t planned to buy. The same tricks apply, though, and there are a few extra checks that matter more for things you swallow than for a television.

Check the price history

Write down what you pay for your usual products now, before the sales start. It takes a minute and is the simplest defence against a “was” price that was only charged for a few days. If you shop on Fake Friday, those prices are a second benchmark.

Work out the mg per £

For CBD, the useful number is how much CBD you get for your money, not the percentage off. Turn the worked example below round: a 1,000mg oil at £36 gives you about 28mg of CBD per £1, while a 500mg oil at £24 gives you about 21mg, even though the second one has the bigger discount. For supplements, do the same per serving, and check the amount of the active nutrient in each serving is the same. Our CBD oil strengths explained guide shows how mg, % and drops relate.

One-off stock-up or subscription?

If you take something every day, compare a few months’ supply in the sale with what a subscription costs over a year. A sale price helps once; a subscription discount carries on, as long as you can skip, pause or cancel online without a phone call. We compare the two in is Black Friday a good time to stock up on supplements?

Extra checks for CBD deals

• Compare price per mg of CBD. A big discount on a low-strength oil can still cost more per mg than a regular-price high-strength one. See the best CBD oils in the UK and how to choose.
• Check the strength hasn’t changed. Watch for a 30ml bottle at a lower strength sitting next to the 10ml you usually buy.
• Ask for the lab report. Clearance stock should still have a batch report showing the CBD content and THC “not detected”. See how to read CBD lab reports.
• Check the FSA public list. A cheap deal from a brand that isn’t on it is no deal at all. See is CBD legal in the UK?
• Check the best-before date if you’re stocking up. Most CBD oils keep for around a year or more unopened, but deep discounts can mean short-dated stock.
• Avoid unknown marketplace sellers. Many “hemp oil” listings contain little or no CBD.

The FSA list matters more than ever this year. In September 2026 the FSA board recommended the first CBD novel food authorisations, set at 10mg a day. Our guide to the FSA’s first CBD approvals explains what that means when you buy.

The FSA’s 10mg a day figure is precautionary advice rather than a legal limit, set while longer-term safety research continues. At Evopure we think it is a very cautious figure, and many adults use more. If you go above it, increase slowly, and check with your GP or pharmacist first if you take any medication.

Extra checks for supplement deals

• Compare per serving and per active dose. For magnesium, compare the elemental magnesium per serving, not the compound weight. See magnesium glycinate vs citrate vs threonate.
• Check the form. A cheap magnesium oxide tablet isn’t the same as glycinate or citrate. See types of magnesium.
• Don’t overbuy. Powders and capsules have best-before dates, and you’ll only save if you use them in time.
• Read the subscription terms. A good subscription lets you skip, pause or cancel online in a couple of clicks.

How much should you stock up?

Only as much as you’ll use before the best-before date. Food supplements, including CBD oils, carry a best-before date rather than a use-by date. Under UK food labelling rules, best-before dates relate to quality rather than safety, so it is the date up to which the maker stands behind what is on the label.

For most people, three to six months’ supply of something you take daily is plenty. Check the date on each pack when it arrives, keep oils and powders somewhere cool, dry and dark with the lid on, and use the oldest first. Our guide to how to store CBD oil covers the fridge-or-cupboard question.

Doing the maths: a worked example

Illustrative figures only. The biggest percentage discount isn’t always the cheapest CBD. If you know your daily amount, you can also work out the cost per day: at 20mg a day, 3p per mg is 60p a day. See our CBD dosage guide.

How to survive Black Friday as a CBD buyer: a 5-step plan

Black Friday is built to rush you. A simple plan keeps you in charge, whether you’re buying CBD, magnesium or anything else you use every day.

1. Write your list now. The product, the strength and how many you’ll use before the best-before date.
2. Note today’s prices. Price per pack, per mg and per serving, so you can spot a real saving on the day.
3. Check the brand before the sale. FSA public list, batch lab reports, spectrum and THC content. See full spectrum vs broad spectrum vs isolate if you’re unsure which you use.
4. Set a budget and ignore the pressure. Timers, “only 3 left” and pop-ups are there to hurry you. A real deal will still be a real deal in an hour.
5. Check the total. Delivery, the subscription terms and the returns policy, before you pay.

If you’re new to CBD, Black Friday is a fine time to try it, but buy one bottle at a sensible strength rather than a stock-up. Start low and build up slowly, as our dosage guide explains.

What UK law says about fake deals

Misleading prices are unlawful. Under the Digital Markets, Competition and Consumers Act 2024, the Competition and Markets Authority (CMA) can now fine businesses directly, up to 10% of global turnover, for unfair practices such as fake “was” prices, false urgency and fake reviews. Mandatory fees must also be included in the headline price rather than added at checkout.

If you think a deal is misleading, you can report it to Citizens Advice, who pass reports to Trading Standards.

What makes a “was” price genuine?

The ASA, which polices adverts, says a “was” price must be a genuine, established usual selling price. Trading Standards guidance for traders adds some practical tests:

• Time: a sale price is more likely to be fair if it runs for no longer than the higher price was charged.
• The last price: the “was” price should be the one the product last sold at, not an older, higher one.
• Real sales: it counts if the shop actually sold a fair number at the higher price.
• “Up to” offers: a significant share of the items should carry the top discount.
• Deadlines: falsely saying an offer is only available for a very short time is a banned practice.

Evopure’s Black Friday 2026 offer

We keep it simple: no inflated “before” prices, no fake countdowns, just genuine savings on the same products we make all year. Every CBD product is broad spectrum with 0% THC and tested batch by batch. Our Black Friday runs from Friday 27 November to Cyber Monday, 30 November, with the saving applied automatically at checkout and free UK delivery on every order. Magnesium and sleep deals are on our Black Friday supplements page. See our Black Friday page for early access.

The saving grows with your basket, from 25% off up to 40% off larger orders, and it covers everything we make: our CBD oils, capsules and balm, the Magnesium Glycinate Sleep Complex and the Reishi Adaptogenic Complex. Subscriptions have their own Black Friday offer instead. The spend tiers, the subscription saving and the early access list (shop from Thursday 26 November) are all set out on our CBD Black Friday deals page.

iOur products are for adults (18+) only. We don’t recommend our products during pregnancy or breastfeeding. If you take any medication, check with your GP or pharmacist before trying CBD.

Buying as a present? See our wellness gift ideas and sleep gifts.

Related guides

• Once you have spotted a genuine deal, read whether Black Friday is a good time to stock up on supplements, including how much to buy and how long each one keeps.
• Buying presents in the sales? See our Black Friday wellness gifts by budget for ideas at every price point.
• For the offers that run all year, see our list of Evopure discount codes and offers.
• To judge a CBD deal properly, compare the price per serving using our cost per 10mg calculator.
• Shopping for the office draw too? See our Secret Santa gift ideas, with the rules and budget tips.
• Shopping on the high street? Our Holland and Barrett Black Friday guide explains how its multibuys, codes and Member Prices work.
• Shopping for CBD in particular? Our CBD Black Friday deals guide covers what’s on in 2026 and a checklist for the day.