The "Greenie" Scare: What Is It and How to Prevent It Under Press-Ons
You remove your press-on nails after two weeks, expecting fresh natural nails underneath, but instead, you see a spot of... green?
Panic sets in. Is it fungus? Is it mold? Is my nail ruined forever?
Take a deep breath. It is likely just a "Greenie" (technical name: Chloronychia), and it is very common. At TsukiNails, we prioritize nail health. Here is the truth about what causes it and, more importantly, how to stop it from ever happening.
1. What Exactly Is a "Greenie"?
First, let's bust a myth: It is usually NOT mold.
It is a stain caused by common bacteria (Pseudomonas) that thrive in damp environments. It’s the same bacteria found in soil or water. It’s not "eating" your nail; it’s just living on the surface.
2. The Culprit: Trapped Moisture
How did it get there? Simple math: Lifting + Water = Greenie.
If your press-on nail lifts slightly at the cuticle or side, it creates a tiny air pocket. When you wash your hands, water gets trapped in that pocket. Since the water can't evaporate, bacteria start to party.
3. The Prevention: The "Dry & Seal" Method
You can 100% prevent this with proper application.
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Step 1: Alcohol is Your Best Friend.
Never skip the alcohol wipe step. It dehydrates the nail plate, removing moisture and oils before you apply glue. -
Step 2: No Air Bubbles.
When applying the nail, hold it at a 45-degree angle and press down slowly to push all the air out. If you see a bubble? Take it off and redo it. -
Step 3: Wear Gloves.
If you have a lifted nail but can't fix it immediately, wear gloves when doing dishes. Do not let water sit in the gap.

4. I Have a Greenie... Now What?
If you already have a spot, don't worry.
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Remove the extension. Do not cover it up again immediately.
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Keep it dry. The bacteria die when exposed to air.
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Light buffing. You can gently buff the surface stain, but mostly, you just have to wait for the nail to grow out.
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Discard the press-on. Do not reuse the specific nail that covered the green spot to avoid re-contamination.

Conclusion
Greenies are annoying, but they are a sign that your application needs a tweak. Master the "air-free" application, and your nails will stay as healthy as they look stylish.