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Sally Hansen Hard As Nails Treatment Serum is a 13.3 ml clear nail hardener designed to protect, strengthen, and smooth fragile nails. Its advanced formula, enriched with Omega 3 and soy, prevents chipping, splitting, and peeling while filling in ridges for a polished, professional look. Lightweight and fast-absorbing, this serum is a must-have daily treatment for millennial professionals seeking durable, healthy nails that make a confident statement.

| ASIN | B07JNWSYQP |
| Best Sellers Rank | 112,126 in Beauty ( See Top 100 in Beauty ) 175 in Nail Strengthening |
| Brand | Sally Hansen |
| Brand Name | Sally Hansen |
| Customer Reviews | 4.2 out of 5 stars 1,893 Reviews |
| Global Trade Identification Number | 00074170458374 |
| Included Components | Pink microcapsules |
| Item Form | Liquid |
| Item Weight | 13.3 Grams |
| Item form | Liquid |
| Item weight | 13.3 Grams |
| Liquid Volume | 13.3 Millilitres |
| Liquid volume | 13.3 Millilitres |
| Manufacturer | Coty |
| Manufacturer Contact Information | Coty, 75002 Paris. Coty US LLC, NY, NY 10118. |
| Manufacturer Part Number | 30500209000 |
| Model Number | 30500209000 |
| Number of Items | 1 |
| Number of items | 1 |
| Size | 13.3 ml (Pack of 1) |
| Speciality | Hardener |
| Specialty | Hardener |
| UPC | 074170458374 |
| Unit Count | 13.3 millilitre |
D**W
Exceptionally good
This works on my nails a treat I'm a repeat buyer of it I find that good. It works on my nails within 3/4 days of me applying it that's when I can remember to use it.
H**Y
Good
Good
L**T
Can’t tell
Can’t tell if it’s done much but tbf I have nails on all the time.
S**Y
Like the varnish best
Only been using it few day, nails don’t seem to be Harding up it does say hard as nails.
M**Y
Great product, fast delivery.
Great product.
K**N
Really good
Really works. Would buy again from this seller.
T**S
Need to keep hands dry.
Used several times but might work if you do not get your hands wet for a few hours, over night?
D**A
Worst nail serum
This is the worst nail serum ever, i wish i could return it back. It caused me and ny daughter a nail strips and nails looked very bad after using it
M**O
Repara y fortalece
Casi nunca escribo reseñas, pero esta vez tenía que hacerlo. Me quite yo sola las uñas de acrílico y me lleve varias capas de mis uñas, con cualquier cosa que me pegaba me dolían y se rompían, parecían papel. Me estoy poniendo en el día y noche este producto junto con el lápiz de isdn y mis uñas en cuestión de días fueron otras, no sé si es la combinación de los dos o que, pero de verdad me salvó esto. Lo aplico y masajeo en las uñas hasta que lo absorba.
N**D
Sally Hansen Hard as Nails Vitamin C Strength Serum – A Boost for Weak or Damaged Nails
First Impressions The Sally Hansen Hard as Nails Vitamin C Strength Serum comes in a compact, attractive 13.3 ml bottle that’s easy to store in a makeup bag, purse, or bathroom cabinet. The packaging feels sturdy, and the applicator is simple yet effective for targeted use on nails and cuticles. ________________________________________ Application & Feel The serum has a lightweight, fast-absorbing formula that isn’t greasy or sticky. The dropper-style applicator allows for precise application directly on nails and surrounding cuticles. I found that massaging it in for 20–30 seconds helps the product absorb better, leaving my nails with a subtle, healthy-looking sheen. ________________________________________ Performance & Results After two weeks of daily use, I noticed my nails looked healthier, smoother, and less prone to peeling or splitting. I frequently deal with brittle nails due to frequent hand washing, but this serum noticeably improved flexibility and reduced breakage. The Vitamin C infusion adds a brightening effect, making nails appear cleaner and more even in tone. The product also works well as a prep step before applying nail polish—it smooths out the nail surface and seems to make polish last longer without chipping. ________________________________________ Pros & Cons Pros • Easy-to-use applicator for precise nail and cuticle application • Lightweight, non-greasy formula absorbs quickly • Noticeable strengthening and brightening after consistent use • Helps reduce nail peeling and breakage • Compact size is travel-friendly Cons • Results are best with daily use—occasional application won’t deliver the same benefits • Bottle is small, so heavy users may go through it quickly ________________________________________ Bottom Line The Sally Hansen Hard as Nails Vitamin C Strength Serum is an effective, easy-to-use treatment for anyone struggling with brittle, peeling, or dull nails. The combination of strengthening and brightening makes it an ideal product for nail care routines, whether you wear polish regularly or prefer a natural look. Verdict: ★★★★★ — A small but powerful boost for nail health that delivers visible results with consistent use. Works well on all genders!
B**R
Amazing
Absolutely the best for nails that need help. I had nails that broke and peeled. I couldn't grow them because of those two things. In just 1 week they looked amazing. After 2 weeks they weren't breaking and peeling. I'm still cutting my nails short to grow out the damage but I'm extremely happy with this. I have two bottles, one at home, one for my purse
K**A
It Works for Me
I've been using this for the past 11 days, every day before I go to bed and by day 8, I noticed that this serum has been helping with my nails. I'm an ex-nail biter, have worked hard to stop that habit over the last two years and because of that habit, my nails are weak and easily broken. It doesn't help that I work in a place with a cold room that just made the issue of weak nails worse. But this has really helped and I have no regrets in buying this product like I have in the past with other nail strengtheners. I would highly recommend this product, even if it's just a bottle to see if it will help you. Definitely will be buying again before I run out.
C**I
Funziona
Sto usando questo prodotto da qualche settimana e il suo effetto si vede le unghie si sono rinforzate, io purtroppo ho unghie molto rovinate a causa dell’ uso della fresa per togliere il semi permanente e se vi dico che funziona vuol dire che funziona davvero perché le mie unghie sono dí molto migliorate certo nel mio caso ci vuole più tempo ma donne fidatevi. Di Amazon no c’è nulla da dire che già non sappiate: Perfetto come sempre. Mariacarla
Trustpilot
3 weeks ago
2 months ago