InLei Lash Filler 3 Nourishment Formula
SUBSCRIPTION SELECTED • cancel anytime!InLei® Lash Filler 3 is the revolutionary core of the Lash Filler 25.9 treatment, designed to reconstruct, repair, and replump lashes from the inside out. Developed in Italy, it ensures optimal moisture levels and improved cohesion between the cuticle and cortex, making lashes more elastic and significantly less prone to breakage.
£38.99
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Key benefits
Transform natural lashes with InLei Lash Filler 3, a powerful treatment designed to rebuild strength and vitality from root to tip. Formulated as the final step in the lamination process, this revolutionary solution penetrates deep into the lash hair matrix to repair damaged keratin bonds from within. By combining active peptides with essential nutrients, InLei Lash Filler 3 guarantees long-lasting health, enhanced volume, and incredible shine with every application.
- Reconstructs and strengthens lashes from within for healthier results
- Clinically proven to increase thickness and length over time
- Deeply nourishes to reduce breakage and improve elasticity
- Enhances overall lash quality beyond a standard lash lift
- Delivers long-term results your clients can see and feel
Lash Filler 3 is at the cutting edge of lash lifting technology, providing immediate and long-term structural benefits.
- Product Function: Deep reconstruction and thickening (Step 3)
- Proven Results: 25% thickening and 9% lengthening (after 3 treatments)
- Enhanced Results: Up to 28% thickening and 12% lengthening when paired with Adiutrix serum
- Origin: 100% Made in Italy
- Packaging: Dropper bottle for hygienic, zero-waste dispensing
- Safety: For professional use only; 48-hour patch test required
- Shelf Life: 36 months (unopened); 2 months (opened)
Is this product right for me?
Who is InLei® Lash Filler 3 for?
This solution is exclusively for fully qualified lash lift and lamination professionals. It is the ideal choice for technicians who want to offer their clients a high-tech treatment that is clinically proven to work across all ethnicities.
What is InLei® Lash Filler 3?
It is a thickening and nourishing solution that bonds to the keratin fibres of the hair. When following the 25.9 protocol, it is guaranteed to increase lash thickness by 25% and length by 9% over the course of three sessions.
When should you use it?
Filler 3 is applied after the tinting stage. It serves as the deep-conditioning phase that cleanses away tint residue while pumping the hair full of essential amino acids and nutrients.
Why choose the Lash Filler 25.9 line?
Because it goes beyond a standard lash lift. This professional system is formulated to improve lash structure over time, with a concentrated active complex also used in InLei Adiutrix Serum. Paired with a precision dropper for hygienic, controlled application, it ensures consistent, high-performance results in every treatment.
To achieve maximum efficacy during the treatment:
- Application: Apply using a Picasso Brush with quick movements to simultaneously clean tint residue and push the product into the hair.
- Absorption: Let the product penetrate for 1 to 2 minutes until it is completely absorbed.
- Detailing: For a precise finish, use a microfibre-tip brush soaked in Filler 3 to brush the roots and ensure total coverage.
- Compatibility: This product is designed to work in a specific sequence following Lash Form 1 and Lash Fix 2.
FAQs
What is the difference between Lash Filler and LVL?
The LVL is a treatment that just lifts the client's lashes. InLei’s Lash Filler treatment not only lifts the client's lashes but also nourishes the lashes from the inside out. It also helps increase the lashes' natural thickness by up to 24% after just three treatments - which has been clinically proven by the University of Milan.
Read more on the In Lei Lash Filler Treatment.
Can I use the Korean lash lift method with the InLei Lash Filler system?
Yes. The Korean lash lift method can be used alongside the InLei Lash Filler system when performed correctly and professionally. These techniques complement each other and can be adapted depending on lash type, desired results, and treatment goals.
For a full explanation, professional insights, and guidance on how this method works in practice, read our blog post here.
Is Lash Filler a lash lift/lamination?
In short, yes, InLei Lash Filler is a lash lift/lamination treatment, but with the added benefit of nourishing and strengthening the natural lashes. Unlike standard lash lifts, Lash Filler is designed not only to change the curl of the lashes, but also to improve their condition, resulting in thicker, healthier, and shinier lashes.
It is a clinically tested treatment, proven to thicken natural lashes by up to 24%, making it a safer and more advanced alternative to traditional lash lift systems.
Is InLei Lash Filler vegan?
All Lash Filler products are cruelty-free with the majority of products being also vegan. The only product that is not vegan is InLei Filler 3 which contains Keratin, and In Lei Gentle Wax.
How long can I keep the InLei Lash Filler products open for?
Every product has its expiry date listed on the packaging. It is a small open jar icon with the number inside - the number indicates the months.
- Bottles: Form 1/Fix 2/Filler 3 - 2 months after opening.
- Sachets: Form 1/Fix 2/Filler 3 - it is recommended to use each sachet for one treatment.
How should I patch test for Lash Filler & Tint?
It is always recommended to patch test all products used during a treatment, as they may come into contact with the skin. Apply a small amount of each product to clean skin on the forearm using a clean microfibre brush, leave for 15 minutes, then remove and cover each area with a hypoallergenic plaster. Label each patch so the client can identify which product caused a reaction, if any.
Clients should monitor the area for 24–48 hours and report any reaction. If a reaction occurs, they must be referred to their GP and the treatment should not go ahead.
Tint must be mixed with cream developer for patch testing, as this is one of the most common allergens due to PPD. Always check ingredients during consultation and avoid any known allergens. While patch testing does not guarantee that a reaction won’t occur, it is the safest practice and is strongly recommended for all products, even if not stated in the product leaflet.
My client's lashes didn't lift, why?
There are several reasons why the lashes didn't lift after the treatment:
- Incorrect size of the silicone shield (was the curl too soft/big for the client's lashes resulting in a weak curling effect?).
- The lashes were incorrectly aligned on the silicone shield.
- Too much of the fixing gel was used that prevented other products from working.
- Incorrect product placement for Form 1 and Fix 2.
- Incorrect choice of timing.
- Working with expired products.
- Working with products that were incorrectly stored.
My client doesn’t like the result. Can I repeat the treatment on the same day?
If the effect of the treatment is not as your client has expected, the best solution would be to offer them a complementary treatment in a few weeks' time. If the final result requires an immediate fix, then you can repeat the treatment in the next couple of days, using minimum timing.
However, always take into consideration your client's natural lashes when making a decision, as you do not want to cause any further damage.
How should I clean the lashes after InLei Lash Filler treatment?
Every solution during Lash Filler treatment should be removed using dry cotton buds. We strongly advise you not to use any water. At the very end of the treatment, we recommend using Filler 3 to help dissolve the Fixing gel, and then using the Fillering tool, remove the residue of the fixing gel and tint leftovers from natural lashes. Filler 3 can be left on the lashes and does not need to be removed after the treatment is finished.
As part of the updated InLei Lash Filler 25.9 protocol, you can finish the treatment by cleansing the lashes and eyelid area with InLei Mousse Magica. This professional foam shampoo helps remove any remaining tint and glue residue, releases the shields, and leaves the lashes perfectly clean without affecting the curl or hair structure. It is gentle, suitable for sensitive skin, and helps reduce the risk of allergic reactions.
Does InLei tint contain PPD?
Every hair dye contains PPD, however, InLei Tint contains a very small percentage of it, compared to other brands.
Does InLei tint contain ammonia?
InLei Tint is based on plant waxes and does not contain ammonia.
The InLei tint didn’t stain the skin/the stain washed off after a few days, why?
The stain of the tint on the skin depends on several factors:
- The colour used during the treatment (darker colours tend to leave a slightly stronger stain).
- Skin type (colour will fade quicker on oily skin).
- Mechanical movements (the use of scrubs, peelings, touching the eyebrows, makeup application etc).
On normal skin, the results can last around 7-10 days, on dry skin up to 7 days, and on oily or mixed skin only up to 3-5 days.
Can I use Lash Filler for an eyebrow treatment?
Yes, you can offer a Brow Filler treatment using InLei Lash Lift products, however, please note that the Lash Filler range of products was designed for eyelashes, and for eyebrows InLei have created the Brow Bomber range.
Brow Filler will influence the brow hair structure, resulting in thicker hair up to 24% in 3 treatments. It is important to remember that not every client would like to have their eyebrow hairs thicker.
Is InLei Brow Bomber a brow lamination/brow perm treatment?
Yes, Brow Bomber is a name used to describe a brow lamination/brow perm treatment that is performed using InLei Brow Bomber products.
What is the shelf life of the InLei Brow Bomber bottles?
Every product has its expiry date listed on the packaging. It is a small open jar icon with the number inside - the number indicates the months.
- Brow Lift 1 - 3 months after opening.
- Brow Lock 2 - 3 months after opening.
- Brow Bomber 3 - 9 months after opening.
- Mister Fix is made with an airless bottle that prevents contact with oxygen, extending the shelf life of the product, keeping it perfect for up to 12 months!
Can I use henna instead of tint for InLei Brow Bomber?
Henna dye cannot be used for Brow Bomber (brow lamination) treatment. Both henna and lamination slightly dry out the eyebrow hair and when combined together can cause damage to the eyebrows.
You should wait at least 20 days after brow lamination to offer a henna brow treatment. For brow lamination, it is recommended to use tint.
What are the steps to use Brow Bomber?
Disclaimer: Brow Bomber products are for eyebrow treatments only performed by a trained professional.
- PREPARE THE EYEBROWS
- APPLY INLEI® "BROW LIFT 1"
- SHAPING THE EYEBROWS
- APPLY INLEI® BROW LOCK 2
- INLEI® LASH AND BROW TINT
- HAIR REMOVAL
- INLEI® BROW BOMBER 3 - NOURISHING THE EYEBROWS
For a full step-by-step refresher on how to use the Brow Bomber products, read our blog: STEP BY STEP GUIDE TO BROW LAMINATION | HOW TO USE INLEI® BROW BOMBER.
Can I use InLei Brow Bomber 3 on its own?
InLei Brow Bomber 3 is a product designed to be used as the last part of the Brow Bomber treatment to finish the treatment and complement the previously used products, which can be quite drying on the eyebrow hairs.
Used on its own, it does not give a brow lamination effect, and will only act as a moisturising, nourishing butter. It can be used as the last step of the tinting procedure to nourish the eyebrows.
Brow Bomber 3 is for professional use only.
Can I use InLei Filler 3 instead of InLei Brow Bomber 3 for eyebrows if my client is allergic to InLei Brow Bomber 3?
Both Lash Lift Filler and Brow Bomber ranges have been designed to work together within their own range of products. That is why we wouldn't recommend mixing products from another range, as we cannot guarantee the results.
Can I use InLei Brow Bomber on eyelashes?
No, the Brow Bomber range has been designed specifically for brow lamination, and should not be used on the lashes, as it may cause damage.
Should I use cling film with InLei Brow Bomber instead of the Fixing Gel?
We recommend using Fixing Gel to align the eyebrows during Brow Bomber treatment. This will help you control the directions of hairs and create the desired effect. We do NOT advise using cling film for Brow Bomber treatment, as Brow Bomber is a cold perm, therefore it should not be exposed to a higher temperature during processing time (higher temperature is created when brows are covered with a cling film, which speeds up the processing time - this may cause damage to eyebrow hairs).
Can I use a different brand of tint with InLei Brow Bomber?
All products from the Brow Bomber range have been designed to work together, in order to guarantee sufficient results. If you decide to use another tint brand, you may not have the same effects as when using all products from the collection.
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