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Alpine Lutein 30
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From Unknown
This report was last updated 2/2/2017.
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Report Info:
Last Updated: Feb 2, 2017
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Note: While Amazon.com claims 62 Ratings, we counted 239 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL
Deleted Reviews

FAIL
Suspicious Reviewers

FAIL
Reviewer Ease

WARN
Rating Trend

WARN
Unverified Purchases

WARN
Incentivized Reviews

WARN
Word Count Comparison

WARN
Phrase Repetition

WARN
Overlapping Review History

PASS
Reviewer Participation

PASS
Brand Repeats

Most Trusted Reviews
Not really tried this yet. [Go to full review]
Oct 14, 2016
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
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Critical Reviewer (avg. rating: 4.3)
Least Trusted Reviews
Lutein is a carotenoid that provides protection of the eye. ... [Go to full review]
Jul 15, 2016
0%
TRUST
TRUST
-
Unverified Purchaser
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Created on a high volume day
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Overrepresented word count (199 words)
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Admitted to receiving an incentive
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Contains repetitive phrases (
show)
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Take-Back Reviewer (313 deleted Reviews; avg. rating: 4.7)
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Overlapping Review History: reviewed 1 of 9 top products
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Easy Grader (avg. rating: 4.6)
Analysis Details
Fail
Deleted Reviews

We discovered a total of 26 deleted Reviews for this product, with an average rating of 4.5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
Fail
Suspicious Reviewers

Take-Back Reviewers
174 of the 239 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.
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 4.6, 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.
4.6 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn
Rating Trend

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- 58%
- Created over 14 days
We counted 239 reviews for this product over the span of 210 days, an average of 1.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 14 days exceeding this threshold:In total, we found that 138 reviews were created on just 14 days. This is an excessively high number of reviews submitted on these high volume days.
Warn
Unverified Purchases

216 of the 239 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate unnatural reviews.
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.
Warn
Incentivized Reviews

On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
182 of the 239 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is an excessively large percentage of incentivized reviews which may indicate unnatural reviews.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Warn
Word Count Comparison

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- 44%
- 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 106 reviews (or 44%) 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.
Warn
Phrase Repetition

Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
78 of the 239 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
36% also reviewed:
Alpine Lycopene 10mg, 120 Softgels by Unknown
23% also reviewed:
Viva Labs Fractionated Coconut Oil, 16 oz - Ultra... by Viva Labs
23% also reviewed:
Bone Broth Superfood Pills (1 Bottle/180ct.)... by Au Bon Broth Bone Broth
16% also reviewed:
Turmeric Curcumin with BioPerine 10mg -... by Vimerson Health
15% also reviewed:
Organic Jojoba Oil for Hair & Face - USDA Organic... by Radha Beauty
14% also reviewed:
Glucosamine with Chondroitin, MSM, Turmeric... by Bayberg
14% also reviewed:
Stress Relief Supplement with Ashwagandha,... by Vimerson Health
Does not include products
from the same brand
from the same brand
177 of the 239 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.
Pass
Reviewer Participation

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- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation test.
Pass
Brand Repeats

Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.