Written and medically reviewed by Dr Zeeshan Afzal (MBBS) — Medical Doctor & Medical Content Lead, Welzo
Evidence-based · Honest about what's proven and what isn't · UK-focused
Last updated: July 2026 · Reading time: ~9 minutes
The headline difference isn't liquid versus capsule. It's that these two products contain almost nothing in common microbiologically — and the price gap between them is larger than most people expect.
Symprove |
Welzo Ultra Purity Akkermansia |
Table of contents
Most "X vs Y" probiotic comparisons assume the products are doing the same job. These aren't.
Symprove contains four traditional lactic acid organisms — Lacticaseibacillus rhamnosus, Enterococcus faecium, Lactobacillus acidophilus and Lactiplantibacillus plantarum — all catalogued with NCIMB reference numbers.
Welzo Ultra Purity Akkermansia is built around Akkermansia muciniphila, a next-generation organism that lives in the gut's mucus layer rather than the lumen, plus L. acidophilus, inulin, berberine, astaxanthin and chromium.
The only genuine overlap is L. acidophilus. Everything else is different — see Akkermansia vs traditional probiotics.
Three things it does genuinely well, and they're worth stating plainly since we're comparing it to our own product:
The water-based delivery argument is its main marketing plank. Professor Simon Gaisford of UCL School of Pharmacy has described it this way: "Symprove is different from other probiotics because it is water-based, which means it limits exposure to gastric juices and digestive enzymes." That is a coherent mechanistic argument — liquid doesn't trigger a full digestive cycle the way a meal does, so transit is quicker.
Two practical drawbacks. It requires a morning routine — 70ml on an empty stomach, then a ten-minute wait before eating — and an initial 12-week course. And it is currently sold out, which is worth knowing before you plan around it.
Per two-capsule serving: Akkermansia 60 billion AFU, L. acidophilus 64 billion CFU, berberine 700mg, inulin 200mg, astaxanthin 2.4mg and chromium 10µg — all quantities disclosed rather than hidden in a proprietary blend.
The design logic is that the two organisms occupy different territory: Akkermansia in the mucus layer against the gut wall, L. acidophilus in the lumen. They aren't competing for the same ground.
Three honest caveats. Akkermansia has a far younger evidence base than the lactic acid organisms in Symprove — it's an emerging area resting on a small number of human studies. The inulin is 200mg, which is formulation-level rather than a genuine prebiotic dose, since prebiotic research uses grams. And the berberine at 700mg has a real interaction profile that Symprove simply doesn't carry — covered in the safety section.
This is where the two diverge most sharply.
| Product | Price | Approx. per day |
|---|---|---|
| Symprove, 4 × 500ml | £80.01 | ~£2.81 |
| Welzo Ultra Purity Akkermansia | From £21.99 | Substantially lower |
| Swanson L. plantarum, 30 caps | £5.93 | ~20p |
Over Symprove's recommended 12-week course, £2.81 a day comes to roughly £236. We've included a budget capsule in that table deliberately — because the honest framing isn't Symprove versus us, it's that the probiotic price range in the UK spans more than tenfold, and cost tracks format and brand far more than it tracks evidence.
Possibly, but less than the price difference implies.
The water-based delivery argument is mechanistically sound. What doesn't exist is a good head-to-head trial comparing a liquid probiotic against an equivalent capsule for the same clinical outcome. Without that, "more arrives alive" remains a surrogate measure rather than a demonstrated advantage — the same reasoning we apply to spore-based probiotics.
Capsules have their own solutions to the same problem: delayed-release shells and enteric coatings. See do probiotics survive stomach acid and our general drinks vs capsules comparison.
| Feature | Symprove | Welzo Akkermansia |
|---|---|---|
| Format | Water-based drink | Vegan capsule |
| Main organisms | Four lactic acid strains | Akkermansia + L. acidophilus |
| Strain catalogue numbers | Yes — NCIMB | Not stated |
| Depth of evidence on organisms | Long-established species | Emerging for Akkermansia |
| Additional actives | None | Berberine, inulin, astaxanthin, chromium |
| Daily routine | Empty stomach, 10-minute wait | Swallow and go |
| Travel and storage | Bulky, needs chilling once opened | Easy |
| Availability | Currently sold out | In stock |
Symprove suits you if you want traditional, catalogue-referenced lactic acid strains; you prefer a liquid or struggle with capsules; you like the discipline of a fixed morning routine; and the cost is comfortable. It's the more conventional, better-established microbiological proposition.
The Welzo formula suits you if you're specifically interested in Akkermansia and the mucus-layer niche; you want disclosed quantities in a single capsule; cost matters; or you need something that travels. It's the more novel proposition, with a correspondingly younger evidence base.
Neither suits you if you take prescription medication and haven't checked the berberine interactions, or if you're hoping a probiotic will resolve symptoms that haven't been investigated. And for many people, a well-chosen budget capsule at 20p a day is the sensible starting point before spending more — see best probiotics UK.
Both are well tolerated by most people, with mild bloating or wind in the first week or two the usual reports — see probiotic side effects.
Speak to a doctor before taking either if you
Note that Symprove contains Enterococcus faecium. This is used safely in commercial products, but is a further reason to seek advice first if you are immunocompromised. More in probiotics safety.
On labelling: probiotics carry no authorised health claim in GB or the EU. Both are sold as food supplements and cannot legally be marketed as treating any condition.
See your GP — or seek urgent care — if you have:
Spending more on a probiotic is not the answer to symptoms that aren't improving. See when to see a GP and bowel cancer screening.
They aren't comparable in the way the question implies — they contain almost entirely different organisms. Symprove offers four catalogue-referenced lactic acid strains in a liquid; the Welzo formula offers Akkermansia plus L. acidophilus in a capsule with additional actives. We stock both, and which is better depends on what you want.
It works out around £2.81 a day, or roughly £236 over the recommended 12-week course. You're paying for the liquid delivery system, catalogued strains and the brand's research programme. Whether that's worth ten times a budget capsule is a personal judgement — the evidence doesn't establish it's ten times more effective.
Stock varies. Check the listing for current availability before planning a course around it.
There's no safety reason not to, but there's rarely a reason to pay for both at once. Pick one, take it consistently for the full course, then reassess.
The mechanistic argument is reasonable, but there's no good head-to-head trial against an equivalent capsule for a clinical outcome. Treat "more arrives alive" as a plausible proxy rather than a proven advantage.
Neither is specifically indicated for IBS. Effects are strain-specific, so check what's named on the label against your symptom pattern — and get IBS properly diagnosed first.
Symprove, most likely — it contains no additional actives. The Welzo formula includes 700mg of berberine, which has a significant interaction profile and needs checking against any prescription.
Yes — it's non-dairy, gluten-free and vegan-friendly. The Welzo capsules are vegetable cellulose (HPMC), so also suitable.
Symprove recommends an initial 12-week course. For capsules, allow at least four weeks. See how long probiotics take to work.
Effective single-strain capsules start around 20p a day. If you've never taken a probiotic, trialling a cheap one for a month before committing to a £236 course is the sensible sequence.
Medical disclaimer: This article is for general information and education only and does not constitute medical advice, diagnosis or treatment. Welzo sells both products compared in this article, including one of its own brand; this conflict of interest is disclosed above and no overall winner is declared. Food supplements are not a substitute for a varied and balanced diet, and are not intended to diagnose, treat, cure or prevent any disease. Probiotic effects are strain-specific. Claims regarding in-vitro survival are laboratory findings, not clinical outcomes. Products containing berberine interact with numerous medicines via CYP3A4 and P-glycoprotein, including diabetes medication, statins and anticoagulants, and berberine must be avoided in pregnancy and breastfeeding. Probiotics should be discussed with a doctor before use if you are immunocompromised, critically unwell, have an indwelling venous line, or have inflammatory bowel disease. Prices, review counts, ingredient quantities and availability are correct at the time of writing and may change.
About the author
Dr Zeeshan Afzal (MBBS) is a practising medical doctor and Welzo's Medical Content Lead. He writes and reviews Welzo's health content to ensure it is accurate, evidence-based and aligned with current UK clinical guidance.
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