
Nutra Nail 5 to 7 Day Growth Treatment - Fast Keratin Nail...
Good for: Shoppers who want a reliable, well-reviewed product
Watch out for: No major red flags detected
Last analyzed: February 2026
Total Reviews
6,458
On Amazon
Verified
100%
Good
Amazon Rating
4.3
Original rating
Savinoo Rating
4.1
Adjusted rating
Our Recommendation
SAFE TO TRUST - Reviews appear authentic and reliable for making purchase decisions.
Analysis Summary
- LOW RISK (Score: 100/100) Nutra Nail 5 to 7 Day Growth Treatment - Fast Keratin Nail...'s reviews appear mostly authentic. Positive Indicators: 100% of reviews are from verified purchases, which is good..
Customer Reviews from Amazon
Most Helpful Review
"back when i bought this, i had just used press ons and they ripped the whole top layer of my nail off and left other nails torn to my nail bed. i was devastated and since i work with quite a few chemicals at work, i was in so much pain. i knew i couldnt go back to press ons to protect them, nor could i use polish, so i turned to oils. this was a first choice and now, about 2 months after using whenever i remembered to, my nails are fully healed and actually so much stronger than before. they took a while to grow out but this product helped so much. in addition, i used another nail oil that specialized in strength and the combination worked wonders. i used to have paper thin nails and now my nails can actually withstand things!! thank you for saving my nails <3 ( also maybe its just me but while using this product and nail honey ((the other oil i used)) i didnt cut my cuticles at all!! and please dont trim them, they protect the area between your skin and nail. you are prone to infections if you practically scoop the out everytime you do your nails. think about it, do you ever sanitize your nail polish applicator? and when you get your nails done by someone else, they use that same polish on other people... 🤨)"
janice howard
Starting using this two weeks ago, and my nails are already growing. My nails were…
Starting using this two weeks ago, and my nails are already growing. My nails were chipping and cracking and peeling. I like this stuff.gloria vanderschee
My nails got wrecked after powder dip polish manicure was removed with an electric dremel.…
My nails got wrecked after powder dip polish manicure was removed with an electric dremel. I’m still using the treatment, but it seems to be helping my nails get stronger as they grow back.michelle foulke
This stuff has always worked great but has doubled in price over the last few…
This stuff has always worked great but has doubled in price over the last few yearsiris romero
Es verdad no lo puedo creer en tan solo 4 días mis uñas están duras…
Es verdad no lo puedo creer en tan solo 4 días mis uñas están duras y sin quebraduras . Ellas estaban muy débiles por usar uñas postizas, estoy fascinada lo súper recomiendojan
I've been using this product for over 40 years! It really strengthens nails.
Anonymous
Great product and I've noticed a difference in my nails.
What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
27
⚠ Brief reviews
Long Reviews
2%
⚠ Low detail
Short Reviews
14%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
27
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.09
Natural pace
Max in One Day
2
Normal range
Variable Velocity Pattern
Review posting rate varies over time. This may be linked to promotions, product launches, or seasonal events.
Rating Breakdown
This chart shows how customers rated Nutra Nail 5 to 7 Day Growth Treatment - Fast Keratin Nail.... Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
Ready to buy Nutra Nail 5 to 7 Day Growth Treatment - Fast Keratin Nail...?
Our analysis is based on 6,458 reviews.
You May Also Want to Check
How does this compare?
This product scores 100/100 — better than most products we've analyzed. A strong trust signal.
Check on Amazon