ISDIN SI-NAILS® Nail strengthener & cuticle moisturizer

Perfect nails in one click. Visible results in 14 days.

Strengthens your nails with easy application and an invisible finish. Thanks to its unique combination of ingredients, ISDIN SI-NAILS® hydrates and protects your nails, while also boosting keratin and silicon. Visible results in 14 days.

ISDIN

Strengthens your nails with easy application and an invisible finish. Thanks to its unique combination of ingredients, ISDIN SI-NAILS® hydrates and protects your nails, while also boosting keratin and silicon. Visible results in 14 days.

Benefits

Nail strengthening serum specifically designed to improve natural appearance of nails with an invisible finish and easy application. Thanks to its combination of active ingredients, it promotes nail growth and increases resilience, helping prevent breakage. Featuring cationic hyaluronic acid, it also hydrates the cuticles. Visible results in 14 days.

How to use

Apply every day onto unpainted, clean, and dry nails. Brush product onto cuticles and nail edges. Apply in vertical strokes across entire nail surface. If possible, also brush the product underneath your nail.

Composition

Main ingredients:

Cationic hyaluronic acid: Significant adhesion potential to hair, skin, and nails maintains its hydration capacity for a longer time

Pistacia lentiscus gum (Pistacia Lentiscus): Promotes keratin, an essential component for strong, hard, and healthy nails

Organic silicon: Easily penetrates the nail surface, promoting growth and overall nail health

Expert care for healthy nails


Your nails can begin to deteriorate for several different reasons, including stress, diet, external aggressors or microorganisms. ISDIN SI-NAILS® is a nail strengthener specifically designed to protect and visibly improve the appearance of nails and cuticles.

Improves nail hydration and flexibility

ISDIN SI-NAILS® promotes hydration and flexibility of nails, while supporting resilience and growth.

Strength

Increases nail strength and durability while helping to reduce breakage.

Growth

Promotes keratin and silicon in the nails to help improve growth and overall quality.

Hydration

Hydrates the nails and cuticles, moisturizing the entire nail structure to keep nails supple and flexible.

Invisible finish

Fast-absorbing invisible finish.

Effectiveness after 14 days of use on fragile nails

Daily use of ISDIN SI-NAILS® promotes the remineralization and strengthening of nails, providing an overall healthier appearance.

Before
After

¹Evaluation of the effectiveness, safety, and compatibility of Si-Nails in 30 women with fragile nails between 18-65 years old, after 28 days of daily use under normal conditions. Data on file, 2018.

After just 4 weeks of use, users said:

97%

Nails were harder & hydrated.¹

97%

Nails grew faster.¹

93%

Nails were more attractive.¹

87%

Cuticles looked healthier.¹

¹Evaluation of the effectiveness, safety, and compatibility of Si-Nails in 30 women with fragile nails between 18-65 years old, after 28 days of daily use under normal conditions. Data on file, 2018.

Expert formulations for optimal nail health

ISDIN SI-NAILS® contains nail strengthening ingredients that promote nail growth and provide a long-lasting hydrated appearance.

Cationic hyaluronic acid

Significant adhesion potential to hair, skin, and nails maintains its hydration capacity for a longer time. Provides healthier appearance to nails and cuticles.

Pistacia lentiscus gum (Pistacia lentiscus)

Promotes keratin, an essential component for strong, hard, and healthy nails. Helps improve nail structure.

Organic silicon (Silanediol salicylate)

Promotes silicon, which is one of the predominant minerals in the nail. Supports healthy nail growth.

Biosaccharide gum-2

Helps create a film that protects against external aggressors.

Daily nail care for an improved appearance


Apply ISDIN SI-NAILS® every day onto unpainted, clean, and dry nails. For the best results, apply it at night to avoid contact with water for at least 6 hours after application. If needed, be sure to reapply after washing your hands.

The first time you use ISDIN SI-NAILS®, activate the brush by pressing down on the applicator until the brush is moistened (approximately 25 times). After first use, just click once for each nail.

1. Apply

Click and brush onto cuticle and nail edges.

2. Extend

Apply in vertical strokes across entire nail surface.

3. Precision

Apply product underneath nails.

DOCTOR TIP

Dr. Bianca María Piraccini

Director of European Nail Institute

“ISDIN Si-Nails is specially designed to be both effective and easy-to-use and it can represent one of the first choices of treatment in patients with nail brittleness and tendency to breakage.”

FAQS

Can I use ISDIN SI-NAILS® on top of nail polish or gel?

ISDIN SI-NAILS® is not designed for use on top of nail polish or gel. For best results, you should always apply it to unpainted, clean, and dry nails.

How long do I need to use ISDIN SI-NAILS®?

Results can be seen in as little as 14 days. However, it depends on the condition of your nails before starting ISDIN SI-NAILS® nail strengthening treatment. The condition of your nails will improve with prolonged use.

The first time I used ISDIN SI-NAILS®, I didn’t see any product come out. How do I start using it correctly?

Before using Si-Nails for the first time, activate the click pen by pressing down on the click button at least 25 times, until the applicator is moistened. This will activate the flow of product. You only need to click 25 times at first application. After this, click once per nail.

Can I wash my hands after using ISDIN SI-NAILS®?

Since ISDIN SI-NAILS® is water soluble, we do not recommend washing your hands after application. For best results, apply at night to avoid contact with water for at least 6 hours.