Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
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Description
Isdin Si-Nails Nail Strengthener Serum 2.5mlIsdin Si Nails Nail Strengthener is the perfect solution for nail brittleness and with a tendency to breakage. With a unique formula, it improves nail hardness and flexibility overall enhancing the appearance of the nail. Firstly press the Isdin Si Nails Nail Strengthener applicator to moisten the brush. Start the application at the edge of the nail and cuticle covering the nail edges. After that, apply the product in vertical movements and finish by
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 121 reviews
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Product Reviews
★★★★★ 5
Nice products with positive results
I bought Anua toner, trio, and moisturizer. I am in love with these products. They clean your skin really well without leaving residue. They moisturize without leaving your skin oily, and after less than a week of use, I'm already seeing improvement in my skin texture. It really is a good value for the price and how much you use each time. All of this with no irritation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Great for sensitive skin!
Most azelaic acid serum make my skin feel prickly or even a slight burning sensation so I was glad to find this, which has a lower percentage of azelaic acid but also combines CICA. This product does not irritate my sensitive skin and I still get some calming benefits. I use it in place of a toner after washing my face and before other products. It does seem to help calm my rosacea.
Note that this is more soothing than moisturizing so you may still want some sort of barrier cream to use over it at night. It works great under my sunscreen during the day.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Good
Deja la piel hidratada desde su primer uso.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
love it
Love this product. Very light on my skin.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Excelente
Anua simplemente es una excelente opción 💯 todos los productos vale la pena comprar
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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