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Flexie Eyelash Extension Glue

Crafted specifically for low-humidity salon climates, Flexie is a premium, fast-curing eyelash extension adhesive. It features an exclusive velvety viscosity for flawless lash adhesive control, and its innovative formula maintains high flexibility post-cure to deliver a remarkably strong, comfortable hold.

1 second 30-45%, 45-60%, 60-85% 18-22°C
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✅ NO RISK. Love it or your money back.
📦 Order by 2pm ET (Mon–Fri) for same-day dispatch.

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Key benefits
  • Adapt to changing humidity levels with a flexible, forgiving formula
  • Fast 1 second drying time for efficient application
  • Elastic bond helps reduce premature lash shedding
  • Performs well across a wide range of salon conditions
  • Gives you smoother application and better control during your sets
Key details
Experience LevelAdvanced
Strength Extremely Strong 
Drying time1 second
Room humidity40-70%
Room temperature

64.4 - 71.6°F

Viscosity 

Thin, medium, syrup like

syrup like

 

Is this product right for me?

Who is Flexie Glue for?

Formulated exclusively for high-speed, advanced professional lash artists. If you require a rapid-drying professional eyelash glue that accommodates the natural shifting of natural lashes, Flexie is your ultimate choice. (Please note: This lash adhesive is not recommended for beginner or intermediate artists).

What is Flexie Glue? 

Recognized for its distinct, velvety texture, Flexie is an elite eyelash extensions adhesive. It cures in an ultra-fast 1 second and is masterfully designed for both Classic lashes and Russian Volume lashes. In contrast to stiff formulas, Flexie retains its flexibility after curing, drastically lowering the risk of extensions snapping or popping off.

When Should You Use Flexie Glue? 

Turn to this professional lash adhesive whenever you face challenging low-humidity climates. Flexie is expertly calibrated to function flawlessly in rooms with 40% - 70% humidity and temperatures ranging from 64°F - 72°F (18°C - 22°C).

Why Choose Flexie Glue? 

Brittle adhesive bonds are prone to breaking, while flexible bonds endure. Flexie grants you complete control over your adhesive bead, and its built-in elasticity ensures outstanding lash retention. It easily adapts to clients who naturally rub their eyes or sleep on their faces, making it an absolute game-changer for difficult eyelash retention scenarios.

How to maximize eyelash extension retention using Flexie Lash Glue?

When your salon environment fluctuates, your retention takes a hit. If volume fans are popping off early or the bond is weak, consult this professional checklist:

  • Regulate Your Climate: Always track your workspace with a reliable hygrometer. If your humidity falls below 40% or temperatures drop under 64°F (18°C), Flexie will cure slower. Conversely, humidity above 70% or heat over 72°F (22°C) forces it to cure faster.
  • Master Your Adhesive Drop: This velvety formula demands a fresh drop every 10 to 20 minutes. Never dispense new glue directly onto an expiring drop (it will quickly become gummy and stringy). Ensure you pick up the ideal bead—too thin a layer will fail to secure the extension.
  • The Ultimate Prep Protocol: Deep clean the natural lashes using Lash Foam Cleanser and Protein Remover Pads. Follow up with Cleanser to eliminate residual oils, then apply Primer to infuse moisture and balance the pH level. For an even stronger hold, incorporate Retention & Speed Booster to open up the hair cuticles.
  • The Finishing Seal: Complete your service with Superbonder Lash Sealant. It instantly cures the adhesive fumes and amplifies Flexie's inherent flexibility.
  • Application Audit: Verify you have achieved at least a 2mm attachment base with the natural lash. Confirm there are absolutely no split or crisscrossed bases.

Struggling with your attachment technique? Consider booking a 1-on-1 mentoring session with a London Lash Approved Trainer.

Description
  • Dry Time: 1 second (Extremely fast-drying)
  • Viscosity: Velvety
  • Flexibility: High (Maintains elasticity after polymerizing)
  • Ideal Humidity: 40% - 70% (Perfect for low-humidity environments)
  • Ideal Temperature: 64°F - 72°F (18°C - 22°C)
  • Best For: Classic lashes & Russian Volume lashes
  • Skill Level: Advanced professionals only (Not suitable for beginners or intermediate artists)
  • Shelf Life (Unopened): 6 months from production date (1 month for sample sizes)
  • Shelf Life (Opened): 4 weeks (3-5 days for sample sizes)
  • Storage: Keep upright in a cool, dry area away from direct sunlight, preferably inside an airtight container. Thoroughly wipe the nozzle with an adhesive wipe after each use.
  • Pro Tip: Always track your glue's freshness! Place a piece of tape with the opening date directly on your bottle.

(Friendly reminder: For professional use only. We strongly suggest purchasing a sample size before committing to the full bottle. During Black Friday sales, there is a strict maximum limit of 20 bottles per order. For bulk purchasing inquiries, please reach out to info@londonlashpro.com).

FAQs

Which lash adhesive dries the fastest?

Our quickest-drying adhesives include Power Bond, Royal Bond, and Swift Bond, all designed to cure within 0.5–1 second when used in the correct conditions.

  • Power Bond performs best at 64–72°F (18–22°C) and 50–65% humidity
  • Royal Bond works well at 64–72°F and 30–80% humidity
  • Swift Bond is ideal at 64–72°F and 40–85% humidity

Keep in mind: higher humidity speeds up curing time, while lower humidity slows it down.

 

These adhesives are extremely fast and are best suited for advanced lash artists. Using a glue that cures too quickly for your speed can negatively impact retention.

 

How do I choose the right lash glue?

The best eyelash extension adhesive for you depends on your experience level, room conditions, and working speed.

Beginner or intermediate artists: opt for slower adhesives like Lady Bond or Satin Bond for better control

Advanced artists: faster adhesives may help you increase efficiency

 

To choose accurately, you’ll need to know:

  • Your room temperature
  • Your room humidity
  • How quickly you place the extension after dipping into adhesive

Using a hygrometer is highly recommended to monitor your environment and maintain consistency.

For a full breakdown, explore our lash glue comparison guide or reach out to our support team at info@londonlashpro.com.

 

Which lash glue is best for sensitive clients?

All professional lash adhesives contain cyanoacrylate, the ingredient responsible for bonding. Most allergic reactions are triggered by adhesive fumes, not the liquid itself.

 

If a client has previously had an allergic reaction, it’s very likely they will react again. In these cases, lash extensions are not recommended.

For clients who experience mild sensitivity (not a true allergy), you can:

  • Use Superbonder at the end of the treatment to reduce fumes
  • Improve airflow with tools like an extraction fan to minimize exposure
  • Always follow proper consultation procedures and avoid working on clients with contraindications.

     

Why is my lash glue drying too slowly?

Slow curing is usually caused by low humidity or incorrect room temperature.

 

To speed up your adhesive:

Increase humidity levels in your workspace

Adjust room temperature within your glue’s recommended range

Use Booster on the lash strip to accelerate curing

 

Helpful ways to increase humidity:

  • Use a humidifier
  • Place a damp towel near a heat source
  • Lightly hydrate lashes during prep
  • Work in sections to maintain moisture

 

If your speed has improved over time, your adhesive may simply be too slow for your current skill level - switching to a faster glue could improve your results.

 

Why has my lash glue become thick or stringy?

Adhesive consistency changes are usually caused by exposure to air, moisture, or improper storage.

 

To prevent this:

  • Store glue in a cool, dry place, away from sunlight
  • Avoid pushing dried adhesive back into the bottle
  • Replace glue every 4–8 weeks after opening
  • Always close the cap immediately after use
  • Never clean the nozzle with nozzle wipes
  • Proper care will help maintain optimal performance and retention.

 

Why are my volume fans closing?

If your fans close after dipping, your adhesive is likely too slow for your working speed.

 

To fix this:

Increase humidity and/or temperature

Use Booster on the lash strip (not on natural lashes)

 

Check that you’re not picking up too much adhesive. Balanced conditions and correct glue amount are key to maintaining open, symmetrical fans.

 

How do I clean my glue nozzle properly?

 

After every use:

Wipe the nozzle with a lint-free glue wipe

Store the bottle upright

Gently squeeze out any residue before closing

 

When shaking manually:

Remove the cap

Cover the nozzle with a wipe to prevent clogging

Important: Never use cotton pads, tissues, or fibrous materials. These can react with cyanoacrylate and cause heat buildup or safety risks.

 

What is the shelf life of lash adhesive?

Unopened: Up to 6 months from production date

Opened: Best used within 4 weeks (maximum 8 weeks)

 

For sample sizes (2ml), use within 5 days of opening.

 

Pro tip: label your bottle with the opening date to track freshness.

 

What should I do if my glue nozzle is blocked?

 

If your nozzle becomes clogged:

Replace it with a spare nozzle

Use a Glue Rescue Kit if the cap is stuck

A nozzle opener tool can make replacement easier

 

To avoid blockages:

Clean the nozzle after every use

Store glue correctly

Avoid squeezing the bottle when dispensing

 

Why is there white residue on my glue bottle?

White residue is caused by shock polymerization, which happens when adhesive reacts with moisture.

To prevent this, store glue in an airtight container, keep it away from humidity and direct sunlight and ensure the cap is tightly sealed after each use

 

Why does my glue look clear instead of black?

Adhesives must be shaken thoroughly before use. Shake for 1–2 minutes (or use a glue shaker), this ensures all ingredients are properly mixed

Only Crystal Bond is designed to be clear. All other adhesives should appear fully black when ready to use.

 

How should I store lash glue correctly?

Before opening: Keep sealed in original packaging. Can be stored in the refrigerator to extend shelf life

After opening: Store at room temperature. Use an airtight container and keep away from heat, sunlight, and humidity.

 

Always store upright. Proper storage is essential for maintaining adhesive performance.

 

How do I remove lash adhesive safely?

Eyelash extensions should always be removed by a trained professional. Never pull or force extensions off, as this can damage natural lashes.

For safe removal: Use a professional remover such as Cream Remover or Gel Remover. Work in small sections and ensure eyes are properly protected.

 

Following correct removal techniques ensures a safe and comfortable experience for your client.

Properties
Best for: Advanced Cruelty-free 1 second 30-45%, 45-60%, 60-85% 18-22°C Vegan
Reviews

Customer Reviews

Based on 407 reviews
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J
Jami

Im shocked!
I bought this item a month ago for $40. With almost $8 in shipping ut was still under $50. Now its over $60. Thats crazy for a glue.
It works great but thats so much money tor a glue.
I don’t understand what one month did to the price.
Its a great glue but maybe not almost pushing $75-100 great.

Hi Jami

Thank you so much for your feedback.

We’re really glad to hear that you love how the glue works! You’re right, it’s possible that your previous purchase was made while the glue was on a promotional offer, which is why the price was lower at that time.

We completely understand your surprise at the current price, and we truly appreciate your honesty. We always aim to provide the best quality and performance, and we hope the glue continues to deliver the results you love.

Thank you again for sharing your thoughts, it really helps us understand our customers and keep improving.

LLP x

n
nicola mauricette
Yayy

Best glue for my humidity issues.

Hi Nicola,

Thank you so much for your review! We’re so happy to hear that our glue works well for your humidity issues.

We can’t wait to keep supporting you on your lash journey ✨

LLP x

E
Ecaterina Stef
My favorite!

This glue works really good in my lashing room conditions. I like it's syrop like consistency and drying time. Time to time i try other glues , but keep coming to FLEXIE.

Hi Ecaterina!

Thank you so much for your amazing 5-star review! We’re thrilled to hear that Flexie Glue is your favourite and works perfectly in your lashing room conditions 😍✨. It’s great to know you love the syrup-like consistency and drying time!

LLP X

T
The Westcoast Esthie
My favourite!

I’ve been using LL for awhile now and I love the retention and low fumes for all of my clients. 10/10

Hi Lovely,

Thank you so much for your lovely feedback, we’re so glad you’re having such amazing retention!

LLP x

S
SollashhavenbyLia
Flexie

Flexie has been my new favorite glue. I switched from Lost Artistry Pro Bond and I love Flexie — def more expensive but it’s been worth it. Ensure you shake it well, keep track of your room tempt, humility, and when you open it. I stocked up :) I’m an advance lash tech too. I’m sure I can use .5 second glue but I use premade and handmade lashes as I lash — depending on the style so 1 second helps me.

Hi Lia!

Thank you so much for your amazing 5-star review! We’re thrilled to hear that Flexie has become your new favourite glue 😍✨. It’s fantastic to know it’s working so well with your techniques and lash styles, and we love your tips for keeping it at its best! So happy you stocked up — sounds like a perfect plan

LLP X