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Layer 1 · Decision
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Probiotic

Metabolic · Capsule · 366 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Active per serving
Prebiotic Fiber 100 mg
Form
Capsule
List price (catalog, USD)
$24.99
Price per serving
$0.07List price divided by servings per container. A per-day cost only if the label serving is once daily.

Reading notes

  • CFU count and strain list are not stored in the catalog; see the product notes and label.
Full label record: servings, testing, ingredients
Servings per container
366
Catalog monthly estimate
$2.05
Testing disclosure
No third-party testing listedStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Prebiotic Fiber100 mg

What to check on the label

  • Whether the figure is per capsule or per day, and how many capsules the label's daily serving contains.
  • The salt form named (berberine HCl, dihydroberberine, Ca-AKG). The catalog does not convert between forms.
  • Many labels carry interaction warnings for berberine. Read the label warning and the safety section on this page.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

4.8/10
Overall score
#18 / 20 in Metabolic

See the score breakdown below.

Read the full evidence vault
Watch out
Tier 4
Ingredient RCT (different dose)
The ingredient was tested in an RCT but at a different dose, or only in animals.
How we scored this product Show the full breakdown
Composite How this 4.8 is built. 0.50 × 4.2 + 0.20 × 5.0 + 0.10 × 5.3 + 0.10 × 5.0 + 0.05 × 5.0 + 0.05 × 8.5 = 4.8 out of 10. Safety caps applied after. 4.8
4.8 composite
Dose vs. studies50%4.2
Transparency20%5.0
Value10%5.3
Formulation10%5.0
Safety5%5.0
Community5%8.5

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

4.8 / 10
Best for
Budget-friendly
Avoid if
Only 5% of trial dose, No public lab certificate
Full-dose status
5% of trial dose
Price/month
$2
COA status
Not public
Biggest caveat
Dose-evidence score of 4.2 is below average for the site.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $24.99
Last price check: Sep 01, 2026
Layer 2 · Context
In plain language

Why this scored this way

This DoNotAge Probiotic scores 4.8, making it among the lowest-scoring products we track. It delivers 100mg of Prebiotic Fiber, 5% of the studied range low edge (2000mg) with grade B evidence (promising human data, not yet comprehensive). The quality transparency (5.0) is limited by the lack of third-party testing. At $3.41/day it's among the more expensive options in Metabolic.

What drives the score up

  • Community score of 8.5 with positive consumer feedback.

What drags it down

  • Dose-evidence score of 4.2 is below average for the site.
  • Overall dose is only 5% of the trial dose across ingredients.
  • Prebiotic Fiber (100.0mg is 2% of the 5000mg trial dose) is significantly under-dosed.
  • No third-party testing, which caps the quality transparency.
  • Quality transparency of 5.0 is below the site average.

Why you'd choose it

  • You want Prebiotic Fiber from a DoNotAge product.

Why you might skip it

  • You want third-party verified purity.
  • You want a product with a publicly available CoA.
  • You need a full trial dose of prebiotic fiber (this product under-doses it).
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Prebiotic Fiber

Feeds beneficial gut bacteria; go slow to avoid gas.

No landmark RCTs listed · US: Dietary supplement · EU: Food supplement
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
5% of trial dose
Well below the trial dose
Cost at trial dose
$3.41/day at trial dose
What one effective daily dose actually costs
Transparency
5.0/10 · No public lab certificate
No third-party testing disclosed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
No third-party testing
Independent lab verification not disclosed
The brand does not publish evidence of independent batch testing.
Underdosed
Dose at 5% of trial dose
Below 50% of the dose used in published clinical trials.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Prebiotic Fiber100 mgEvidence B

Feeds beneficial gut bacteria; go slow to avoid gas.

Read about Prebiotic Fiber →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$25
per bottle · 366 servings
Dose vs. research
Below trial dose 5%
of published effective dose
$ / day at studied dose
$3.41
what one effective daily dose costs
$ / g active
$0.68
per gram of active substance
Independently checked

Data verification

COA status
Not public
Evidence grade
B
Per-ingredient breakdown
BPrebiotic Fiber

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
Prebiotic Fiber
Feeds beneficial gut bacteria; go slow to avoid gas.
100 mg 2% of trial dose
5000 mg
4.3 /5
Low confidence Strong value signal
543 reviews across 1 platforms (1 sources)
Source diversity: 23%
Trustpilot
Praiseattentive and professional customer servicetrusted brand reputation
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 1 platform.

Compiled from a Trustpilot listing located during research; verified at build time.

Medium confidence

543 reviews · 4.3/5 · positive sentiment

Praiseattentive and professional customer servicetrusted brand reputation
Themes

DoNotAge's Italian Trustpilot listing (4.3/5, 543 reviews) highlights attentive customer service, consistent with the brand's broader reputation across its supplement range including Probiotic.

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say (unverified)

No external reviews aggregated yet for this product.

Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence

Research behind this product

No landmark studies linked yet. See the ingredient pages for the full evidence breakdown.

Important to know
Prebiotic FiberFODMAP sensitivity common. Titrate slowly.

Editorial notes

Standard 10-strain, 30 billion CFU probiotic with inulin and B12, reasonably specced but not flagged as tested by independent lab like the rest of the catalog.

Brand owners

Spot an error?

If you are the manufacturer or brand owner of Probiotic and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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