Matrix Biolage Advanced Keratindose Pro-Keratin+Silk Shampoo & Conditioner 2 Liter Set(33.8 Oz Each)
More product info
From Omagazee
Refresh the report to view the most up-to-date data available:
Refresh Report
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (5 words)
- Overrepresented Participation (posted 6 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
One-Hit Wonders
24 of the 209 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.
Take-Back Reviewers
23 of the 209 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.
Single-Day Reviewers
20 of the 209 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 4.8 while all other reviewers 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.
-
- 24%
- 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 51 reviews (or 24%) are within an overrepresented word count group. These reviews have rated this product an average of 4.6, while all other reviews 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.
-
- 72%
- 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 151 reviewers (or 72%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
-
- 1%
- Created over 1 day
We counted 209 reviews for this product over the span of 1,471 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 3 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
18 of the 209 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.
28 of the 209 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
4% also reviewed:
Universal Shampoo/Conditioner Pump for Bottle, 1... by Bar5F
2% also reviewed:
BIOLAGE Advanced Keratindose Pro-Keratin Renewal... by Biolage
2% also reviewed:
OPI Nail Lacquer, I Just Can't Cope-acabana,... by OPI
2% also reviewed:
SanDisk Cruzer USB Flash Drive by SanDisk
2% also reviewed:
Top Selling It's A 10 Bundle, Miracle... by It's a 10 Haircare
1% also reviewed:
WBM Himalayan Natural Crystal Salt Tealight... by WBM
1% also reviewed:
AmazonBasics Lightweight Super Soft Easy Care... by AmazonBasics
1% also reviewed:
Argan Oil Shampoo and Conditioner Set -... by Artnaturals
from the same brand
31 of the 209 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.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
-
- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.