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Vidal Sassoon Salonist Hair Colour Permanent Color Kit, 7/43 2 Intense Red Copper (PACKAGING MAY...
More product info
From Vidal Sassoon
This report was last updated 4/7/2020.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
Review Hijacking Alert!
798 reviews are coming from a seemingly different product variation:
798 reviews are coming from a seemingly different product variation:
Vidal Sassoon Pro Series 3VR Deel Velvet Violet 1 Count (Example Review 
)
)
Learn more about Review Hijacking.
Review Hijacking Alert!
This listing appears to have once been a different product:
This listing appears to have once been a different product:
Vidal Sassoon Pro Series 3VR Deel Velvet Violet 1 Count
Learn more about Review Hijacking.
View/Edit Adjustment
Jump to Report Card
Report Info:
Note: While Amazon.com claims 674 Ratings, we counted 1,742 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
Deleted ReviewsFAIL Rating Trend
Rating TrendFAIL Phrase Repetition
Phrase RepetitionFAIL Overlapping Review History
Overlapping Review HistoryWARN Unverified Purchases
Unverified PurchasesWARN Suspicious Reviewers
Suspicious ReviewersWARN Reviewer Participation
Reviewer ParticipationPASS Word Count Comparison
Word Count ComparisonPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
Bought the Midnight Muse Blue. This is my first time ... [Go to full review]
Jan 4, 2018
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (40 deleted Reviews; avg. rating: 4.5) -
Easy Grader (avg. rating: 4.6)
Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
I have been coloring my own hair for a few ... [Go to full review]
Jan 17, 2015
0%
TRUST
TRUST
-
Unverified Purchaser -
Created on a high volume day -
Contains repetitive phrases (
show)
-
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
-
Overlapping Review History: reviewed 1 of 9 top products -
Overrepresented Participation (posted 10 Reviews) -
Easy Grader (avg. rating: 4.5)
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 330 deleted Reviews for this product, with an average rating of 4.4. 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.
4.4 average rating of deleted reviews
Fail Rating Trend
Rating Trend
-
- 34%
- Created over 42 days
We counted 1,742 reviews for this product over the span of 2,573 days, an average of 0.7 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 42 days exceeding this threshold:In total, we found that 593 reviews were created on just 42 days. The reviews on these high volume days have rated this product an average of 4.4 while reviews from other days have 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 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
41 reviews
(4.3/5)
(4.3/5)
33 reviews
(4.7/5)
(4.7/5)
120 reviews
(4.4/5)
(4.4/5)
65 reviews
(4.5/5)
(4.5/5)
26 reviews
(4.5/5)
(4.5/5)
17 reviews
(4.7/5)
(4.7/5)
56 reviews
(4.3/5)
(4.3/5)
55 reviews
(3.4/5)
(3.4/5)
16 reviews
(4.6/5)
(4.6/5)
42 reviews
(4.3/5)
(4.3/5)
255 of the 1,742 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 4.1. 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:
4% also reviewed:
Secret Outlast Sport Fresh Scent Women's Clear... by Secret
2% also reviewed:
L'Oreal Feria Absolute Platinums Hair Color,... by L'Oreal Paris
2% also reviewed:
Crest Pro-Health HD Toothpaste, Teeth Whitening... by Crest
1% also reviewed:
BIC Velocity Mechanical Pencil, Medium Point (0.7... by BIC Corporation
1% also reviewed:
Children's Advil Sugar Free Pain Relief, 4 Ounce by Advil
1% also reviewed:
Jif Creamy Peanut Butter Granola Bar, 5 Ct by Jif
1% also reviewed:
[2 Pack] Galaxy S10 Tempered Glass Screen... by Comfort Valley
1% also reviewed:
Certified Refurbished Fire TV Stick with Alexa... by Amazon Renewed
Does not include products
from the same brand
from the same brand
220 of the 1,742 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 4.1. 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 Unverified Purchases
Unverified Purchases
889 of the 1,742 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, the discrepancy in ratings between the unverified purchases and verified purchases isn't significant enough to rule out the possibility of it being due to random chance.
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 Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
697 of the 1,742 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
Warn Reviewer Participation
Reviewer Participation
-
- 69%
- 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 1201 reviewers (or 69%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Word Count Comparison
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.
Read more about our Word Count Comparison 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
79 of the 1,742 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.
38 of the 1,742 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.