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Checked & Clear Direct-to-consumer supplements, read properly

Supplement check · United Kingdom

Corevalin: what’s inside, and why the over-40s are trying it

We took the two-minute questionnaire, read the label, and found the real per-day price — so you can decide with everything in front of you.

By Checked & Clear Updated 7 September 2026 3 min read
A Corevalin bottle on its side with several beige capsules beside it
Corevalin Daily Alignment 30 capsules · one a day · vegan · made in the EU

Corevalin is a single daily capsule made for people over 40 who’d rather have one simple habit than a shelf full of bottles. You won’t find it in Boots or Holland & Barrett — it’s sold only on the brand’s own site, which opens with a short questionnaire before it shows you a price.

We went through the whole thing: the formula, the questionnaire, and what it actually costs once the discounts are applied. Here’s the short version.

The formula

What’s actually inside

One vegan capsule, once a day, made in the EU. Ten actives in total — two minerals and eight plant extracts. What’s in it is the interesting part.

The two with an official benefit

  • Zinccontributes to normal carbohydrate metabolism
  • Chromiumcontributes to the maintenance of normal blood glucose levels

Both authorised by the European Food Safety Authority — officially recognised, not a line we made up.

The eight plant extracts — the part people really want to know about

  • Berberine — the bright yellow compound found in plants like Berberis. More than 3,000 years of history in traditional Chinese and Ayurvedic practice, and a lot of research attention over the past decade — which is why you keep seeing it in formulas like this one.
  • Banaba leaf (Lagerstroemia speciosa) — from the giant crepe myrtle of the Philippines and South-East Asia, where the leaves have been picked and brewed for generations.
  • Korean ginseng (Panax ginseng) — one of Asia’s most prized roots, cultivated for centuries and still part of daily life across Korea, China and Japan.
  • Milk thistle (Silybum marianum) — recognisable by the white-veined leaves that gave it its name, grown around the Mediterranean since ancient times and still one of Europe’s most widely used plants.
  • Green tea — one of the most studied plants on earth, and a familiar sight in formulas of this kind.
  • Resveratrol — the compound famously found in red grapes and red wine.
  • Alpha-lipoic acid — a compound the body makes on its own, and a familiar name to anyone who follows supplements closely.
  • Cayenne — the warming spice that gives so many kitchens their heat, and a classic finishing touch in botanical formulas.
One thing worth knowing: under UK and EU rules, only the zinc and chromium wordings above can be stated as official benefits. The eight plants are in the formula for their long herbal tradition — they are not a promise, and we won’t dress them up as one. If you want to dig into the research behind any of them, it’s all publicly available.

Who it’s for

At 40, 50 and beyond

Corevalin is made for the over-40s, and it tends to mean something a little different at each stage.

In your 40s

Keeping the pace you’re used to, without the afternoon dip.

In your 50s

Feeling steady through the day, without the ups and downs.

In your 60s

Carrying on feeling like yourself, with one small daily habit instead of a shelf of bottles.

A man and a woman, both in their fifties, each holding a Corevalin bottle at home
Whatever stage you’re at, it’s a food supplement, not a medicine — it fits alongside your day rather than replacing anything. If you have any doubts, have a word with your doctor before taking it. Otherwise, it’s a simple one-a-day.

The two-minute questionnaire — and why the price comes last

Here’s the part that catches people out: Corevalin’s site doesn’t show you a price straight away. It opens with eight quick questions about how you’d like an ordinary day to feel over the next eight weeks — and only reveals the packs at the end.

The formula is the same whichever answers you give; the questionnaire just tailors how it’s presented to you. It takes about two minutes — and the prices waiting at the end are noticeably lower than the first-glance figures suggest, which is exactly why it’s worth going all the way through.

What it asks about

  1. How your energy sits across the day
  2. What your daily routine actually looks like
  3. How you’d like to feel eight weeks from now
  4. What matters most to you right now

None of it is medical — there are no questions about conditions or medication.

The real numbers

What it actually works out at

Finish the questionnaire and the packs appear. Checked on the UK site, 7 September 2026.

One Corevalin bottle
1 bottle · 30 days £49.95 £49.95 per bottle + £4.95 delivery
Two Corevalin bottles
2 bottles · 60 days £79.95 £39.97 per bottle · £1.33/day free delivery
Three Corevalin bottles
Best seller 3 bottles · 90 days £109.95 £36.65 per bottle · £1.22/day free delivery

The 90-day pack is the one the brand labels its best seller, and the one already selected when you reach the order page. It’s the lowest cost per day, comes with free delivery, and carries the largest saving the site shows — around £99.90 off. Roughly the price of a coffee every few days.

A couple of practical things

Nothing dramatic — just the bits we always flag:

  • Delivery is free on the two- and three-bottle packs; the single bottle adds £4.95.
  • At checkout there’s one tick-box that also saves your card for next time — it’s unticked by default, so it’s entirely your choice.
  • The full guarantee and returns terms are on the brand’s own page, worth a quick look if that matters to you.

That’s it. The formula is straightforward and the label is honest about what it is.

Questions people ask

How do I take it?

One capsule a day, with a meal.

Do I have to do the questionnaire?

It’s how the site works — the packs appear at the end. Two minutes.

How fast is UK delivery?

Free on the two- and three-bottle packs; the estimate shows before you confirm.

Is there a subscription?

No pre-ticked subscription. There’s one box that also saves your card — unticked by default.

Can I get it on Amazon or at Boots?

No — only from the brand’s own site.

Is it vegan?

Yes, the capsule is plant-based.

You’ve seen what’s in it and roughly what it works out at. If you want your own two-minute read, the questionnaire is where the brand’s site starts — and your personalised prices show up at the end.

Start the 2-minute assessment →

We may earn a commission from this link — it never changes your price. Prices and terms are the brand’s and can change, so check them on their page before ordering.