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Viva Naturals Vitamin C with Bioflavonoids and Rose Hips, Quali-C from Scotland, 1000mg, 250 Veg...
More product info From Viva Naturals

Review Hijacking Alert!
5 reviews are coming from a seemingly different product variation:

Viva Naturals Vitamin D3 1000 IU 360 Softgels High Potency Enhanced Absorption Delivered in... (Example Review )



Learn more about Review Hijacking.
Review Hijacking Alert!
This listing appears to have once been a different product:

Viva Naturals Vitamin D3 1000 IU 360 Softgels High Potency Enhanced Absorption Delivered in...



Learn more about Review Hijacking.
Amazon Reviews for  Viva Naturals Vitamin C with Bioflavonoids and Rose Hips, Quali-C from Scotland, 1000mg, 250 Veg Caps
Rating:
201 Ratings
201 Reviews
("Ratings" vs. "Reviews")
48% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

I don't eat enough vitamins so this is perfect to ... [Go to full review]
Jul 23, 2019      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (9 deleted Reviews; avg. rating: 5.0)
  • Brand Repeater (2 of 30 reviews for this brand; avg rating: 5.0)
  • Easy Grader (avg. rating: 5.0)


Least Trusted Reviews

This vitamin D supplement has so far, in my use ... [Go to full review]
Jun 15, 2018      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (168 words)
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (5 deleted Reviews; avg. rating: 4.0)
  • Brand Repeater (13 of 244 reviews for this brand; avg rating: 4.6)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Overrepresented Participation (posted 244 Reviews)
  • Easy Grader (avg. rating: 4.5)


Analysis Details

Fail Brand Repeats

Brand Repeaters


159 of the 201 reviewers have reviewed other products for this brand. This is an excessively large percentage of Brand Repeaters which may indicate unnatural reviews.

from Brand Repeaters

from Non-Repeaters


4.4
4.6


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

Take-Back Reviewers


113 of the 201 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.

from take-back reviewers

from reviewers without previously deleted reviews


4.4
4.4


Read more about our Suspicious Reviewers test.

Warn Rating Trend

from reviews created on high volume days

from reviews created on normal volume days


4.3
4.5


Read more about our Rating Trend test.

Warn Word Count Comparison

  • 42%
  • Have an overrepresented word count

In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 85 reviews (or 42%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
4.4


Read more about our Word Count Comparison test.

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

Common Phrases in Titles:
3 reviews
(4.3/5)
3 reviews
(5.0/5)
17 reviews
(4.8/5)
3 reviews
(3.7/5)
6 reviews
(3.0/5)
2 reviews
(3.0/5)
2 reviews
(5.0/5)
4 reviews
(4.0/5)
2 reviews
(4.5/5)
4 reviews
(4.8/5)
Show MoreShow Less


114 of the 201 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


4.5
4.4


Read more about our Phrase Repetition test.

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

Does not include products
from the same brand


147 of the 201 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.3
4.6


Read more about our Overlapping Review History test.

Pass Unverified Purchases
  • 0%
  • Unverified Purchases
0 of the 201 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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.

Pass Reviewer Participation

  • 25%
  • From reviewers with an overrepresented participation

We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 51 reviewers (or 25%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.3
4.4


Read more about our Reviewer Participation test.

Pass 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 4.3, while the average ease score for reviewers in this category is 4.3.

4.3 Product's Average Ease Score

4.3 Category's Average Ease Score


4.3
4.3


Read more about our Reviewer Ease 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.