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💅 Elevate your nail game—strength, hydration, and protection in one sleek pen.
ISDIN Si-Nails Nail Strengthener is a 2.5ml gel pen designed for daily use to visibly improve nail and cuticle health within 14 days. Featuring a deep-penetrating cationic hyaluronic acid formula for hydration, mastic oil to boost nail hardness, and organic silicon to remineralize and promote growth, it also provides an invisible protective film against external damage. Its convenient click-pen applicator ensures effortless, precise application on natural or polished nails.





| ASIN | B07NC714FQ |
| Best Sellers Rank | #5,912 in Beauty ( See Top 100 in Beauty ) #33 in Nail Care Products |
| Brand | ISDIN |
| Brand Name | ISDIN |
| Customer Reviews | 4.4 out of 5 stars 10,560 Reviews |
| Global Trade Identification Number | 08470001915528 |
| Item Form | Gel |
| Item Weight | 20 Grams |
| Item form | Gel |
| Item weight | 20 Grams |
| Liquid Volume | 2.5 Milliliters |
| Liquid volume | 2.5 Milliliters |
| Manufacturer | ISDIN |
| Manufacturer Part Number | 690015637 |
| Model Number | 690015637 |
| Size | 2.50 ml (Pack of 1) |
Z**1
BUY IT
It’s cheaper here than the pharmacy. It genuinely helped to restore my nails it’s natural strength. I was using gel polish and it weakened my nails. The only downside is it finished really fast so don’t be generous I guess haha.
A**I
It doesnt even last a week
I used this once a day and gave me total of a week’s worth of product- such a joke at this price point
M**A
So bad
ما ناسبني ابدا كسر اظافري قبل كانت اقوي
S**.
Good Product
Good Product
S**A
Nails better
Pricey but my nails are much improved
A**N
Not the same product
I have previously bought this nail product from my local farmacy and my nails had never been better. They were growing and were really strong. Now I ordered what I thought was the same product, from Amazon, but something is wrong. The design is the same, but the content? My nails are now suddenly thin and weak and broke after three weeks of usage of this product.
G**N
Super pratique
Je ne sais pas si ça fonctionne vraiment, je l'espère 😅 difficile à juger sur base d'une expérience personnelle mais très pratique à appliquer et sèche super rapidement. Je ne l'utilise que pour une main sur le bout des ongles uniquement (guitariste) et dans ce contexte la longévité est bonne même si le prix est assez élevé...
P**E
Excellent produit
C'est la deuxième fois que j'ai recours à ce soin pour réparer mes ongles abimés par la ponceuse électrique. Facile d'emploi et une amélioration visible.
S**K
işe yaramıyor
işe yaramıyor
Trustpilot
2 weeks ago
2 weeks ago