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Natural Cosmetics Aromatherapy Glass Roll On Bottles, 10ml (1/3oz) Cobalt Blue Glass - Set of 6
More product info
From Greenhealth
This report was last updated 7/13/2019.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.com claims 1,660 Ratings, we counted 1,724 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".
Top products in Refillable Containers with authentic reviews:
Report Card
Warn Overall Grade
FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL Word Count Comparison
Word Count ComparisonFAIL Phrase Repetition
Phrase RepetitionFAIL Overlapping Review History
Overlapping Review HistoryWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Reviewer Participation
Reviewer ParticipationPASS Unverified Purchases
Unverified PurchasesPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
One of the bottles was broken. The others look fine ... [Go to full review]
Jun 13, 2017
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (6 deleted Reviews; avg. rating: 4.3) -
Easy Grader (avg. rating: 4.5)
Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
Great bottles to dilute my essential oils. I use fractionate ... [Go to full review]
Dec 28, 2015 1 of 1 found this helpful.
0%
TRUST
TRUST
-
Verified Purchaser
-
Created on a high volume day -
Contains repetitive phrases (
show)
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Single-Day Reviewer (posted all reviews on Dec 28, 2015) -
Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
-
Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
751 of the 1,724 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.2 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.9. 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.
Single-Day Reviewers
31 of the 1,724 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.6 while all other reviewers rated this product an average of 4.0. 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.
Fail Word Count Comparison
Word Count Comparison
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- 33%
- 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 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 575 reviews (or 33%) are within an overrepresented word count group. These reviews have rated this product an average of 4.3, while all other reviews have rated this product an average of 3.9. 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.
Fail Phrase Repetition
Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
Show MoreShow Less
75 reviews
(4.6/5)
(4.6/5)
115 reviews
(4.6/5)
(4.6/5)
77 reviews
(4.5/5)
(4.5/5)
66 reviews
(3.0/5)
(3.0/5)
20 reviews
(4.7/5)
(4.7/5)
38 reviews
(4.7/5)
(4.7/5)
45 reviews
(4.5/5)
(4.5/5)
77 reviews
(4.6/5)
(4.6/5)
206 of the 1,724 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.4 while reviews without substantial repetitive phrases rated this product an average of 4.0. 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.
Fail Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
5% also reviewed:
Plastic Transfer Pipettes 3ml, Graduated, Pack of... by Belmaks
3% also reviewed:
2 ml (5/8 dram) Amber Glass Essential Oil Bottle... by Plant Therapy Essential Oils
3% also reviewed:
Plant Therapy Fractionated Coconut Oil for Skin,... by Plant Therapy
3% also reviewed:
Basil Essential Oil - 100% Pure Therapeutic Grade... by Healing Solutions
3% also reviewed:
The Complete Book of Essential Oils and... by Valerie Ann Worwood
3% also reviewed:
Fractionated Coconut Oil (Liquid) - Carrier oil... by Pure Acres Farm
2% also reviewed:
Fractionated Coconut Oil - Pure USA Expeller Cold... by Ellie's Best
Does not include products
from the same brand
from the same brand
337 of the 1,724 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.4 while the reviewers who have a more unique product review history rated this product an average of 3.9. 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.
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 4 deleted Reviews for this product, with an average rating of 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.
5.0 average rating of deleted reviews
Warn Rating Trend
Rating Trend
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- 15%
- Created over 39 days
We counted 1,724 reviews for this product over the span of 2,047 days, an average of 0.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 39 days exceeding this threshold:In total, we found that 252 reviews were created on just 39 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Warn Reviewer Participation
Reviewer Participation
-
- 61%
- From reviewers with an overrepresented participation
We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1045 reviewers (or 61%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
Unverified Purchases
119 of the 1,724 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 Ease
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
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
42 of the 1,724 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 1,724 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.