Browser Extensions 



Close

Why is ReviewMeta.com a Must-Have for Amazon Shoppers?


Free Phone Apps

Free Browser Extensions




* PRO-40 PROBIOTICS * Top Rated Probiotics - Probiotics For Women – Probiotics For Men – SLAMS...
More product info From HB&S Solutions

Amazon Reviews for  * PRO-40 PROBIOTICS * Top Rated Probiotics - Probiotics For Women – Probiotics For Men – SLAMS - Probiotics 50 Billion – Probiotics 100 Billion - Probiotics For Weight Loss
Rating:
41 Ratings
41 Reviews
("Ratings" vs. "Reviews")
90% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:
Last Updated: Nov 26, 2017
Refresh Report
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Fail Overall Grade
FAIL Unverified Purchases
FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
PASS Word Count Comparison
PASS Overlapping Review History
PASS Incentivized Reviews
PASS Deleted Reviews

Most Trusted Reviews

I would have continued to use it but it caused ... [Go to full review]
Sep 27, 2017      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 4.5)
  • Critical Reviewer (avg. rating: 4.1)


Least Trusted Reviews

Apr 20, 2017      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Apr 20, 2017)
  • Brand Monogamist (4 of 4 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 4 Reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Unverified Purchases

35 of the 41 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 5.0 while the verified purchasers have rated this product an average of 3.0. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from unverified purchasers

from verified purchases


5.0
3.0


Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.

Fail Brand Repeats

Brand Repeaters


14 of the 41 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Repeaters

from Non-Repeaters


4.9
4.6


Brand Loyalists


12 of the 41 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.

from Brand Loyalists

from Non-Loyalists


4.9
4.6


Brand Monogamists


5 of the 41 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.

from Brand Monogamists

from Non-Monogamists


4.8
4.7


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


5 of the 41 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


4.2
4.8


Never-Verified Reviewers


35 of the 41 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 5.0 while the reviewers who have written at least one verified purchase review rated this product an average of 3.0. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from never-verified reviewers

from reviewers with at least one verified purchase review


5.0
3.0


Single-Day Reviewers


10 of the 41 reviewers have written multiple reviews but posted all of them on a single day. While this is more Single-Day Reviewers than we'd expect to see, the discrepancy in ratings between the Single-Day Reviewers and all other reviewers isn't significant enough to rule out the possibility of it being due to random chance.

from single-day reviewers

from non-single-day reviewers


4.9
4.6


Read more about our Suspicious Reviewers test.

Fail Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.7, while the average ease score for reviewers in this category is 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

4.7 Product's Average Ease Score

4.4 Category's Average Ease Score


4.7
4.4


Read more about our Reviewer Ease test.


Warn Rating Trend

  • 10%
  • Created over 1 day

We counted 41 reviews for this product over the span of 203 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.

However, we see the following 1 day exceeding this threshold:In total, we found that 4 reviews were created on just 1 day. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.

from reviews created on high volume days

from reviews created on normal volume days


5.0
4.7


Read more about our Rating Trend test.

Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.



10 of the 41 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


5.0
4.6


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 93%
  • From reviewers with an overrepresented participation

We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 38 reviewers (or 93%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.7
4.3


Read more about our Reviewer Participation test.

Pass Word Count Comparison

  • 0%
  • Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


17 of the 41 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.5


Read more about our Overlapping Review History test.

Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.

  • 0%
  • Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
  2. We have no information on reviews that were never published in the first place.
  3. We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Read more about our Deleted Reviews test.