How We Test New UV Adhesives at EvLo Lash Co

At EvLo Lash Co, we never settle for "good enough" — especially when it comes to the products you rely on every day. Every time we add a new UV adhesive or tweak an existing formula, it goes through a rigorous, detailed testing process. Here’s a behind-the-scenes look at what that includes:

1. Bond Strength Testing

First, we test how strong the bond is once the adhesive cures under a UV light. A UV lash adhesive must hold lashes securely, so we stress-test the bonds to make sure they meet our high performance standards.

We want the highest retention possible, so a strong bond is critical!

2. Cure Speed Analysis

Next, we measure exactly how fast the adhesive cures under UV light. Consistency here is necessary for artists to work efficiently without compromising results.

3. Color and Viscosity Checks

We closely monitor the color and thickness (viscosity) of every batch. UV adhesives should always look and behave the same from bottle to bottle, ensuring a smooth and predictable application experience.

4. Opened Shelf Life Testing

We simulate normal, daily use to determine how long a bottle of adhesive stays fresh once opened. This helps us provide realistic guidelines to our customers on how long they can rely on a bottle before needing to replace it.

5. Unopened Shelf Life Testing

We also test how long unopened adhesives maintain their performance when stored properly. This ensures that products shipped to you are at their peak when you need them.

6. Manufacturing Process Validation

Beyond the adhesive itself, we meticulously review and validate the entire manufacturing process. Every bottle must meet the strictest quality control standards before it reaches your hands.

7. Shelf Life Under Different Conditions

Lastly, we put unopened adhesives through additional tests — like refrigerating them before opening — to see how storage conditions affect longevity and performance. This way, we can provide the best possible storage advice to maximize shelf life.

Every step we take is about one thing: delivering the highest quality UV adhesives to help you create your best lash work ever. Thank you for trusting EvLo Lash Co to support your artistry!

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