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  • InLei Lash Molecular 4 Reconstruction Gel

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    Key benefits

    Elevate your lash lamination results with InLei Lash Molecular 4, a leave-in gel engineered to rebuild and reinforce natural lashes after treatment. Formulated with balanced vegetable proteins, hyaluronic acid, and quinoa, this essential final step reconstructs the hair shaft from the inside out to optimize strength, shine, and color longevity. By penetrating the cortex and forming a protective barrier over the cuticle, InLei Lash Molecular 4 ensures long-lasting hydration while safeguarding lashes against mechanical and chemical damage.

    • Rebalances lash structure for superior firmness, elasticity, and shine
    • Low molecular weight proteins penetrate the cortex to restore moisture
    • High molecular weight proteins coat the cuticle to lubricate and strengthen
    • Custom hyaluronic acid adheres to lashes, locking in intense hydration
    • Protects against daily mechanical stress and harsh chemical processing
    • Quinoa boosts colour retention and prevents premature pigment fading
    • Minimises environmental damage by forming a protective outer shield

    This powerful reconstruction gel completes the 25.9 lamination protocol, securing healthier and fuller-looking natural lashes.

    • Product Function: Professional leave-in lash reconstruction gel
    • Compatibility: Designed for InLei® Lash Form 1, Lash Fix 2, Lash Filler 3, Mousse Magica, and Tint
    • Volume & Yield: 15ml bottle (approx. 100–120 treatments)
    • Proven Results: 25% thickening and 9% lengthening (up to 28%/12% with Adiutrix serum)
    • Testing & Origin: Clinically tested at a prestigious University Institute in Milan; 100% Made in Italy
    • Safety & Ethics: For professional use only; VEGANOK certified vegan formula
    Reviews

    Customer Reviews

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    A
    Anna Tkachenko
    perfect

    brilliant service, thank you!

    Hi Megan, Thank you so much for leaving such a fantastic 5* review! 😍 We are so pleased to hear your positive feedback. Enjoy your order! - LLP x

    Details
    • Clinically proven efficiency in collaboration with the prestigious University Institute in Milan, Italy
    • Designed to be used exclusively with InLei® Lash Form 1, Lash Fix 2, Lash Filler 3, Mousse Magica, and Tint
    • 15ml bottle (approximately 100-120 treatments)
    • For professional use only
    • Made in Italy 
    • Vegan-friendly formula
    How to use

    HOW TO PERFORM A LASH FILLER 25.9 TREATMENT:

     

    1. Analyse the client’s eyes and natural lashes so that you can choose the correct shields for the desired effect on that eye type. Carefully check the eye area: the eyes must be healthy, without make-up and without any irritation of the eye or eyelid. The lashes must be present and healthy too, of course!
    2. Clean the lashes and the whole eye area with InLei® Mousse. Fill the InLei® Barolo bowl with water and dispense the mousse into the InLei® Solo bowl. Wet the brush and use it to pick up a small amount of product. Apply it on the client's eye with circular movements. Repeat this sequence until the lashes are completely clean. Rotate the client's head towards the side of the eye you are working on, pour a few drops of water with an ophthalmic bottle and wipe with a cotton pad. Repeat on the other eye.
    3. Apply InLei® White/Black silicone eyepatches to secure lower lashes and protect the skin under the eyes. Use the InLei® Fillering tool to check that no inner or outer corner lashes are caught under the patch.
    4. Prime the lashes with InLei® Saline Pretreatment. Pour a few drops of InLei® Saline Pretreatment into the InLei® Solo bowl, soak a microbrush and carefully spread the product over all lashes. If the client has thick eyelashes, use two micro-brushes to trap any hairs between the two brushes and prime more thoroughly.
    5. Apply the InLei® Fixing Gel water-soluble glue on the selected shields and place them on the upper eyelid (note that eyes must be closed from now on) of both eyes. Use the InLei® Fillering tool to check that there is an exact millimetre of distance between the roots of the lashes and the shield. If necessary, correct the shield positioning with a wet microbrush by rolling the microbrush under the shield and gently move the skin of the eyelid as needed.
    6. Using InLei® Fixing Gel and InLei® Fillering tool, or Tiziano Brush to give the correct direction, lift the lashes onto the shield. To achieve the best results, use InLei® Helper and / or Helper 2.0 comb to perfectly align the lashes, which should be parallel to one another. Use a wet microfiber-tip brush to remove excess glue if necessary.
    7. Apply InLei® Lash Form 1 (1.5 / 2 mm from the roots of the lashes) using InLei® Vincent cat-tongue brush. Place a thin layer of product without applying it on the tips. Leave on for 6 to 14 minutes depending on the structure and porosity of the hairs.
    8. Remove InLei® Lash Form 1 with a clean, dry brush.
    9. Apply InLei® Lash Fix 2 following the same procedure as the previous step, and leave on for half the time plus one minute. 

      TOP TIP: If there are baby lashes or unruly eyelashes that come away from the curler, use your InLei® Fillering Tool to pull off small amounts of a cotton pad or ball to create a "spiderweb" of cotton. This helps the hair adhere to the curler without reacting with the solution! Be careful when doing this to avoid moving the solution around on the lashes; the roots and tips should still be avoided.
       
    10. Remove InLei® Lash Fix 2 with a clean brush.
    11. Mix the InLei® Tint with InLei® Developer Cream 1.5% 5 vol. in a ratio of 1:1 inside the InLei® Solo bowl. Mix with a spatula until it reaches a creamy consistency.
    12. Apply the tint along the entire length of the lashes, from root to tip, using InLei® brush. Leave on for 6 to 12 minutes depending on the thickness and porosity of hair. The dyeing of the lower lashes can be done at this time or at the end of the treatment while the client is sitting up.
    13. Remove the tint with dry cotton buds.
    14. Apply InLei® Lash Filler 3 using the InLei® Picasso Brush, using quick movements to clean any tint residue. Let the product penetrate for 1-2 minutes, until complete absorption has been achieved. For even more precise and clean work, it is advisable to brush the roots with a microfibre-tip brush, soaked in InLei® Lash Filler 3.
    15. Cleanse the lashes and eyelid area with InLei® Mousse Magica - professional eyelash shampoo. Fill the InLei® Barolo bowl with water and dispense the mousse into the InLei® Solo bowl. Wet the brush and use it to pick up a small amount of product. Carefully clean any dye residue and dissolve the water-soluble glue until the shield unsticks. Clean the entire eyelid with the brush to remove all residues of glue and comb the lashes with an InLei® F-brush to separate the hairs from one another. NOTE: To obtain the correct consistency of the mousse, it is recommended to shake the bottle and turn it upside down during dispensing.
    16. Apply InLei® Lash Molecular 4 - molecular reconstruction for eyelashes and eyebrows. Apply the product on all lashes using an InLei® F-brush and comb until it is completely absorbed. The molecular reconstruction is a leave-on product.
    17. Recommend the customer purchase InLei® Adiutrix serum and use it as an aftercare product at home. By using the InLei® Adiutrix serum daily during a three-treatment cycle, lashes are thickened by 28%, and lengthened by 12%, as proven by efficacy tests.


    We recommend always patch testing your client at least 48 hrs before their first Lash Filler treatment.