Discover the new formula of PODERM® Brittle and Ridged Nail Serum, enriched with plant-based keratin for enhanced hardening action. 23% thicker nails in just 4 months!* It strengthens, nourishes, and protects damaged nails and dry cuticles. 
 
Keratin, the main protein in nails, contributes to their strength and growth. It is essential for maintaining strong and healthy nails.  
 
Thanks to the inclusion of phyto-keratin, our serum strengthens naturally occurring keratin for stronger, more resilient nails. Its formula, featuring Mimetix™ natural technology, stimulates the production of essential nail molecules, prevents breakage, reduces ridges, and restores the protective barrier of nails and cuticles. 
 
The Ridged Nail Serum can be used in conjunction with the Color Strong range, which is rich in Silicon, Biotin, and Keratin, for enhanced results. Color Strong hardening nail polishes, which are permeable to the serum, allow nails to benefit from its properties even when applied over polish. The result: continuously protected, nourished, and strengthened nails. 
 
*Clinical test conducted by an independent laboratory, [thickness/differentiation/cornification…] of the nail plate, 31 volunteers, [4/1] months.