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Best Hair Serum with Argan Oil + Supports Hair Growth Treatment - Hair Serum for Frizzy Hair,...
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From Opulent care
This report was last updated 8/21/2017.
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Report Info:
Last Updated: Aug 21, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Styling Products with authentic reviews:
Report Card
Warn Overall Grade
FAIL Deleted Reviews
FAIL Unverified Purchases
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Phrase Repetition
WARN Reviewer Ease
PASS Rating Trend
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Participation
PASS Brand Repeats
Most Trusted Reviews
Keeps hair really straight, something i've been striving for. Smells ... [Go to full review]
Sep 22, 2015
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 2.0)
- Critical Reviewer (avg. rating: 3.7)
Least Trusted Reviews
I give this a 5 stars! This is the best ... [Go to full review]
Dec 11, 2015
0%
TRUST
TRUST
- Unverified Purchaser
- Admitted to receiving an incentive
- Contains repetitive phrases (show)
- Take-Back Reviewer (268 deleted Reviews; avg. rating: 4.6)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 4.5)
Analysis Details
Fail Deleted Reviews
We discovered a total of 176 deleted Reviews for this product, with an average rating of 4.9. 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 Unverified Purchases
40 of the 179 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 5.0 while the verified purchasers have rated this product an average of 4.2. 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.
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.
Fail Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
10 of the 179 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 5.0 while reviews that were not incentivized rated this product an average of 4.3. 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
Take-Back Reviewers
45 of the 179 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 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
2 reviews
2 reviews
6 reviews
4 reviews
9 reviews
2 reviews
2 reviews
3 reviews
4 reviews
3 reviews
22 of the 179 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.3. 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 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 4.4, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Rating Trend
-
- 0%
- Created on high-volume days
We counted 179 reviews for this product over the span of 683 days, an average of 0.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Word Count Comparison
-
- 27%
- 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 48 reviews (or 27%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
5% also reviewed:
Argan Oil Shampoo and Hair Conditioner Set -... by Maple Holistics
4% also reviewed:
Orange Blossom Water Face Toner - 100% Natural... by Foxbrim Naturals
4% also reviewed:
Hair Conditioner for Damaged Dry Hair - Sulfate... by Maple Holistics
3% also reviewed:
Arvazallia Hydrating Argan Oil Hair Mask and Deep... by Arvazallia
3% also reviewed:
Pure Body Naturals Dead Sea Mud Mask - Face Mask... by Pure Body Naturals
3% also reviewed:
Majestic Pure Argan Oil Hair Mask, Hydrating... by Majestic Pure
3% also reviewed:
PURA D'OR Original Gold Label Shampoo &... by PURA D'OR
Does not include products
from the same brand
from the same brand
35 of the 179 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.
Pass Reviewer Participation
-
- 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
12 of the 179 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.