Nail Care
ISDIN SI-NAILS® Nail Strengthener
ISDIN SI-NAILS® is a clinically tested nail and cuticle treatment for weak, brittle, splitting or slow-growing nails. It's not a polish and not a coating, it's a water-based treatment that absorbs into the nail and cuticle to improve nail quality over time.
The formula combines Pistacia lentiscus extract (to strengthen keratin bonds), cationic hyaluronic acid (for deep hydration), and silicon (to reinforce and restructure fragile nails). Applied like a pen, it leaves no residue, shine or colour, compatible with bare nails and manicure breaks.
Visible improvement in as little as 14 days. Ideal for brittle, peeling or splitting nails, nails weakened by gel or acrylics, dry damaged cuticles, or anyone growing out healthier natural nails.
In stock