InLei® - Lash Filler 25.9 - Lash Molecular 4 in sachets (9 in a package)


InLei® Molecular 4 - molecular reconstruction for eyelashes and eyebrows. 

It is a no-rinse gel that enhances the beneficial effect of the previous solutions of Lash Filler 25.9 system. Its formulation based on perfectly balanced proteins of vegetable origin rebalances the hair structure, enhancing it in all its aspects: shine, strength, colour retention, firmness and flexibility. 

How do these proteins act exactly?

Components with a higher molecular weight form a film on the lash shaft that lubricates and strengthens the cuticle. 

Components with a lower molecular weight penetrate the cortex, moisturising the lashes and making them more elastic. In addition, the product contains and innovative type of Hyaluronic Acid, which binds to the hair in a stable way and provides excellent hydration, thus making the hair very soft and silky. 

Lash Molecular 4 contains:

Hydroxypropyltrimonium Hyaluronate:

  • An advanced version of Hyaluronic Acid, specifically developed to adhere to the surface of the lashes and brows. 
  • It is capable of absorbing and retaining significant amount of water, promoting excellent hydration and moisture retention. 
  • It contributes to a smoother and shinier hair texture. 


  • A complete protein which contains all 8 essential amino acids to strengthen hair structure and increase the shine of eyelashes. 
  • Boosts colour absorption to guarantee a more intense and lasting shade, preserving pigment and colour brightness for longer. 
  • Improves hair structure with strength and firmness. 
  • Increases the shine of eyelashes and gives them a healthy and bright look. 

Hydrolyzed Wheat Proteins:

  • Penetrate the cortex of the hair to help retain moisture and increase hydration.
  • Improve hair texture and elasticity making it easier to treat and softer to the touch. 
  • They form a thin, protective barrier around the hairs to protect against environmental damage and heat exposure 

Hydrolyzed Vegetable Protein - an advanced ingredient that incorporates patented technologies to effectively counteract the hair damage - physical eyelash damage (curler, rubbing on pillow) or chemical damage (aggressive dyes, bleaching). 

  • Its low molecular weight components penetrate the cuticle to strengthen the hair from the inside, increasing resistance against damage. 
  • While its high molecular weight components form a protective film that strengthens, lubricates, and protects the surface of the hairs. 

View instructions here.