The Impact of Humidity on Lash Adhesive Bonding

By I AM Lash

Black Eyelash Glue

The Impact of Humidity on Lash Adhesive Bonding: How to Achieve a Strong and Long-Lasting Lash Extension Retention

Humidity plays a crucial role in the performance of lash adhesive and can significantly affect the bonding process of eyelash extensions. As a lash artist, understanding how temperature and humidity levels impact lash glue can help you achieve better lash retention and minimise lash extension lifting or premature shedding.

In this guide, we’ll explore the science behind humidity and lash extension glue, how different humidity levels affect adhesive drying time, and what you can do to optimise your lash application process for maximum lash extensions retention.

Understanding How Humidity Affects Lash Adhesive

Lash adhesives, especially cyanoacrylate-based glues, rely on moisture in the air to cure and form a strong bond. However, too much or too little humidity in your lash room can negatively impact the curing process and lead to poor lash retention.

Low humidity (Below 40%)

  • Slows down the curing process
  • Causes lash adhesive to remain wet for too long
  • Increases the risk of adhesive wicking (where glue spreads along the natural lash)
  • Leads to weak bonds and poor lash extension retention

Ideal humidity (40–60%)

  • Promotes optimal lash adhesive curing
  • Ensures strong lash retention
  • Reduces chances of lash extension lifting

High humidity (Above 60%)

  • Causes lash adhesive to cure too quickly
  • Leads to poor bonding as the lash glue dries before forming a strong attachment
  • Increases risk of shock polymerisation, making the eyelash glue brittle and reducing lash retention

How to Control Humidity in Your Lash Room

Maintaining the right humidity level for lash adhesive is essential to achieving consistent results. Here are some tips to keep your lash environment stable:

1. Use a Hygrometer

A hygrometer is a must-have tool for any professional lash artist. It helps you monitor the humidity levels in your lash studio, allowing you to adjust your lash extension glue drying time accordingly.

2. Invest in a Humidifier or Dehumidifier

  • If your salon has low humidity, a humidifier can add moisture to the air, helping your lash adhesive cure properly.
  • If you experience high humidity, a dehumidifier will remove excess moisture, preventing premature adhesive curing.

3. Choose the Right Lash Adhesive for Your Humidity Level

Different lash glues work best in specific humidity ranges. At I AM Lash PRO, we offer a variety of fast-drying lash adhesives and low-humidity lash glues designed for different environments.

  • Low-humidity lash glue: Faster drying to allow for proper bonding
  • High-humidity lash glue: Slower-drying to prevent shock polymerisation

4. Adjust Your Lashing Speed

  • In low humidity, your lash adhesive dries slower, so you can take your time with placement.
  • In high humidity, work faster to prevent the glue from curing before attachment.

5. Store Your Lash Adhesive Properly

  • Keep lash glues in an airtight container with silica gel packs to maintain their freshness.
  • Store them in a cool, dry place away from direct sunlight and heat.

Best Lash Adhesives for Different Humidity Levels

At I AM Lash PRO, we provide high-quality lash adhesives designed to suit different humidity ranges:

By choosing the right eyelash extension adhesive, you can ensure a strong bond, improve lash retention, and reduce client complaints about lash fallout.

Additional Tips for Maximising Lash Retention

Aside from controlling humidity and temperature, consider these extra lash retention tips:

  • Use a lash primer to remove excess oil and debris from the natural lashes before application.
  • Ensure proper lash isolation to prevent stickies and premature shedding.
  • Educate your clients on lash aftercare, including avoiding steam and oil-based products.
  • Use a nano mister to add a fine mist of moisture and speed up lash glue curing.

Understanding the impact of humidity on lash extension glue bonding is essential for achieving long-lasting eyelash extensions. By monitoring humidity levels, selecting the right lash glue, and adjusting your lashing techniques, you can ensure strong retention and keep your clients happy.

At I AM Lash PRO, we offer a range of professional lash adhesives and lash tools to help you master humidity control and elevate your lash extension game. Explore our eyelash extension glue collection today and achieve flawless lash retention!

I AM Lash ♥️