The Best Tips to Achieve the Ideal Temperature and Humidity in Your Lash Room

One of the most important factors for achieving excellent eyelash extension retention is maintaining control of your work environment. Many lash artists focus only on their technique, their tweezers, or the type of adhesive they use, and forget a key detail: the climate inside their lash room.

Temperature and humidity are critical to how your adhesive performs. If they are not within the ideal range, your glue will not behave as it should, and this can ruin your retention completely no matter how good your application technique is.

In this article, we will share the best tips to achieve and maintain the perfect temperature and humidity in your lash room. If you are tired of seeing your sets shed too quickly or not understanding why your results are inconsistent, keep reading because here you will find the answers you need.

Why temperature and humidity matter so much

The adhesive we use for eyelash extensions is based on cyanoacrylate. This ingredient reacts with the moisture in the air to cure. This means the speed at which your adhesive dries depends directly on the amount of humidity in your lash room.

If the humidity is too low, the adhesive will dry very slowly and the extensions will slide or move before fully bonding. This creates weak bonds that fall off easily.

If the humidity is too high, the adhesive will dry so quickly that you will not have time to place the extension correctly, and the bond will not have enough time to fully form. Also, when the glue dries too fast it can create what is known as shock curing, which causes the bond to become brittle and inflexible, which also reduces retention.

Temperature also affects curing speed. The higher the temperature, the faster the glue dries. If it is too cold, it will dry too slowly. That is why keeping a stable balance is key to achieving consistent results and long-lasting sets.

What is the ideal temperature and humidity range

The recommended range can vary slightly depending on the brand of adhesive you use, but these are the general ideal levels:

• Humidity: between 45 and 60 percent
• Temperature: between 70 to 73 degrees Fahrenheit

If your lash room is outside this range, your adhesive will most likely not perform properly and this will affect your set retention.

How to correctly measure humidity and temperature

The first step to controlling your environment is measuring it correctly. For this, you will need a reliable digital hygrometer and thermometer.

Place the device close to your workstation, but not directly under your humidifier or air conditioner, so that the data reflects the actual conditions where you are applying extensions.

Check the levels every day before you start working and also during appointments, especially on days when the outside weather changes a lot. This will help you anticipate and make adjustments before the humidity or temperature goes out of range.

What to do if the humidity is too low

Low humidity is a common problem, especially during the winter or when using heating. When there is little moisture in the air, the glue takes longer to dry, which can cause the extensions to detach easily.

To raise the humidity, you can:

• Use a humidifier near your workstation
• Place damp towels near your application area
• Lightly mist water into the air from a distance (never directly onto lashes)
• Keep a small container of water nearby so it evaporates slowly

Remember to monitor constantly so the humidity does not get too high.

What to do if the humidity is too high

High humidity makes the glue dry so fast that you do not have time to place the extension properly. This creates weak bonds that break easily.

To lower humidity, you can:

• Use a dehumidifier in your lash room
• Turn on the air conditioner to dry the air
• Keep windows closed on humid days
• Store your adhesives in airtight containers with silica packs to protect them from ambient moisture

When humidity drops to normal levels, you will see a big improvement in your retention.

What to do if the temperature is too low or too high

The ideal temperature is around 21 to 23 degrees Celsius. If your room is too cold, the glue will become thick and hard to work with. If it is too hot, it will become runny and dry too quickly.

You can control the temperature by:

• Using a small space heater if it is too cold
• Turning on the air conditioner if it is too hot
• Keeping your workstation away from windows with direct sun
• Not placing your glue near hot lamps or heat sources

Keeping a stable environment will make your work much easier and more precise.

Other factors that affect glue performance

Besides humidity and temperature, there are other small factors that can impact how your glue performs:

• Replace your glue drop every 20 to 30 minutes to keep it fresh
• Store your glue in a cool, dark, dry place
• Do not shake the glue excessively because that can cause air bubbles
• Use only the necessary amount of glue to avoid excess weight

Taking care of these details will make a huge difference in both retention and the professional appearance of your sets.

Invest in education to master all of this

Understanding how temperature and humidity work is only one part of becoming a professional lash artist. You also need to learn how to adjust your technique according to the conditions of the day, how to choose the right adhesive for your environment, and how to maintain speed without sacrificing quality.

At LucyLu Lash Academy, we teach you all of this in person, step by step, with supervised hands-on practice and personalized mentorship. You will not only learn the theory but also see how to adapt to different real-life working conditions so you can create sets that last much longer.

Our courses include a complete professional kit and are designed to help you start working safely and confidently from day one. We want you to leave ready to build a successful career, with loyal clients and flawless results.

Final thoughts: your lash room environment is as important as your technique

Even perfect technique will not work if your adhesive is not performing correctly. Controlling the temperature and humidity of your lash room is essential for achieving retention and consistent results.

Do not underestimate the power of your work environment. With proper climate control, your sets will last longer, your clients will be happier, and your books will fill much faster.

At LucyLu Lash Academy, we can help you get to that professional level.
Reserve your spot in our Volume Course and learn all the secrets you need to become a successful lash artist.

Call or text 773-870-2816 with any questions or to enroll in our next group.
Your future as a lash artist starts here.