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SI-NAILS® Nail Strengthener

12,41€ 14,60€

ISDIN Si‑Nails® It is a nail strengthener with cationic hyaluronic acid, mastic oil, organic silicon, and Biosaccharide Gum-2. Its daily use in click-pen format strengthens, hydrates, and protects nails from the first week. Clinical studies show stronger, more hydrated nails and faster growth in just 14 days. Easy application, invisible, and no need to file.

Instructions

  • Fragile, brittle, or damaged nails due to nail polish
  • Promotes strengthened nail growth
  • Strengthens weakened or discolored nails
  • Protection after aggressive manicures or use of gels
  • Suitable for daily use in adults and teenagers
Tamaño: 10 ml
Categoría: Nails, New Arrivals, Nail Treatment
Tipo de Piel: All Skin Types INFO
Preocupación: Luminosidad, Flacidez/Firmeza, Deshidratación, Arrugas
Ingredientes Clave: Cationic hyaluronic acid, Mastic oil, Organic silicon, Biosaccharide Gum‑2
Rutina recomendada INFO
After sanitizing hands/feet Daily

INCI

Key ingredients

KEY INGREDIENTS

  • Cationic hyaluronic acid: deep hydration and long-lasting flexibility
  • Mastic oil: stimulates keratin synthesis, strengthens nail structure
  • Organic silicon: remineralizes and promotes healthy growth
  • Biosaccharide Gum‑2: creates a protective film against aggressions

INCI

Aqua, Alcohol Denat., PEG-40 Hydrogenated Castor Oil, Butylene Glycol, Acrylates Copolymer, Silanediol Salicylate, Tromethamine, Caprylic/Capric Triglyceride, Hydroxypropyltrimonium Hyaluronate, Triethanolamine, Biosaccharide Gum-2, Pistacia Lentiscus Gum, Propylene Glycol, Phenoxyethanol, Benzyl Alcohol, Methylparaben.

Mode of employment

  1. Press 25–30 times to activate
  2. Apply 1 click per nail on a clean, dry surface, preferably at night
  3. Extend with vertical movements covering the nail and cuticle, also underneath
  4. Let dry for at least 6 hours before contact with water
  5. Continuous daily use for optimal results






Results

  • Harder and more hydrated nails (97%)
  • Accelerated growth
  • Greater thickness and flexibility
  • Visibly healthy cuticles

Characteristics

  • Format: click-pen 2.5 ml
  • Dosage and precise applicator
  • No filing; invisible waterproof film
  • Prolonged daily use without harsh ingredients
  • Dermatologically tested















Benefits

  • Strengthens and increases nail resistance
  • Stimulates healthy growth
  • Hydrates and repairs cuticles
  • Improves flexibility and appearance
  • Protects against external aggressions








FAQS

When will the results be seen?
From 14 days, with noticeable improvements in hardness and hydration and accelerated growth.

  • Do you need prior filing?
    No. It is applied on clean, dry, and polish-free nails, without filing.
  • Format and mode of use?
    2.5 ml click-pen format. Activate with 25–30 clicks, then 1 click/nail, once a day.
  • Can I wash my hands afterward?
    Avoid getting wet for at least 6 hours after application for maximum effectiveness.
  • Is it safe?
    Yes, dermatologically tested. Suitable for prolonged use on natural nails.

 

SI-NAILS® Nail Strengthener

ISDIN Si‑Nails® It is a clinically formulated nail strengthener designed to improve the health, strength, and appearance of nails and cuticles. Its advanced formula combines:

  • Cationic hyaluronic acid, which penetrates deeply and provides long-lasting hydration, increasing nail flexibility and reducing the risk of breakage. 

  • Mastic oil (Pistacia lentiscus), botanical resin that stimulates the synthesis of hard keratins, strengthening the structure and thickness of the nails. 

  • Organic silicon (silanediol salicylate), which remineralizes the nail matrix and promotes strengthened natural growth. 

  • Biosaccharide Gum‑2, which forms a protective film that defends against external aggressions. 

A clinical study in 30 women with fragile nails showed visible improvements in just 14 dayswith 97% reporting harder and more hydrated nails and accelerated growth, and 87% better cuticles after one month of daily use.

The product, presented in format click-pen (2.5 ml), offers precise application without filing: it activates with 25–30 clicks, and then just one click per nail is enough, preferably applied once a day at night. It is recommended to avoid contact with water during 6 hours post-application to optimize absorption.

 

ISDIN

SI-NAILS® Nail Strengthener

12,41€ 14,60€

 

SI-NAILS® Nail Strengthener

ISDIN Si‑Nails® It is a clinically formulated nail strengthener designed to improve the health, strength, and appearance of nails and cuticles. Its advanced formula combines:

A clinical study in 30 women with fragile nails showed visible improvements in just 14 dayswith 97% reporting harder and more hydrated nails and accelerated growth, and 87% better cuticles after one month of daily use.

The product, presented in format click-pen (2.5 ml), offers precise application without filing: it activates with 25–30 clicks, and then just one click per nail is enough, preferably applied once a day at night. It is recommended to avoid contact with water during 6 hours post-application to optimize absorption.

 

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