InLei® Lash Molecular 4 is a professional leave-in treatment developed to complete the Lash Filler 25.9 protocol, enhancing the action of the products applied in the previous phases. Its advanced formulation helps rebalance and improve the structure of lashes and eyebrows, promoting greater shine, softness, elasticity, fullness and color longevity.

Thanks to the combination of plant proteins and high-performance actives, Lash Molecular 4 helps protect the hair from mechanical and chemical stress, improving its appearance and supporting its well-being over time.

Technical features

• Type: professional reconstructing gel for lashes and eyebrows

• Fourth phase of the InLei® Lash Filler 25.9 protocol

• Leave-in formula

• Based on plant-derived proteins

• Helps improve shine, elasticity and fullness of the hair

• Helps maintain hydration and softness

• Promotes longer-lasting color

• Supports protection from mechanical and chemical damage

• VEGAN OK certification

• Clinically tested efficacy

• 100% Made in Italy

• Format: 15 ml

• Yield: up to 100-120 treatments

Active ingredients

• Hydroxypropyltrimonium Hyaluronate: an innovative form of hyaluronic acid that adheres firmly to the hair, helping keep it hydrated, soft and silky.

• Hydrolyzed Quinoa: a plant protein that improves the hair structure, increases its shine and promotes better color enhancement.

• Hydrolyzed Wheat Proteins: help create a protective barrier against external agents and heat sources, helping maintain the correct hydration level.

• Hydrolyzed Vegetable Proteins: support the protection of the hair structure from mechanical stress and chemical treatments, helping improve its strength and elasticity.

Recommended use

InLei® Lash Molecular 4 is applied as the final phase of the Lash Filler 25.9 protocol to optimize treatment results and improve the quality of lashes and eyebrows. The leave-in formula continues to work after application, helping keep the hair protected, hydrated and visibly healthier.

Thanks to its advanced technology and high concentration of functional actives, InLei® Lash Molecular 4 is an ideal professional treatment for lamination specialists who want to offer complete, long-lasting results focused on the well-being of the hair structure.