Are you hesitating between semi-permanent polish and gel extensions? You're not alone. Every week, clients arrive at M&A Nail Design in Rezé with the same question: "Which treatment suits my nails and my lifestyle?" The answer isn't always obvious, because each option has its strengths. This complete guide explains everything, point by point, so you leave with perfect nails, without regret.
At M&A Nail Design, we are specialists in nail application in Nantes and nail prosthetics in Rezé. Our team of experienced nail artists applies an impeccable hygiene protocol at every appointment. We select professional-quality products to guarantee durability and nail health.
What is semi-permanent polish and why does it last longer?
Semi-permanent polish is a long-lasting manicure that combines the shine of a classic polish with increased resistance. Unlike a traditional polish that chips in 2-3 days, semi-permanent lasts 3 to 4 weeks without losing its shine. According to a 2025 survey by the French Beauty Federation (FFB), 68% of French women who have adopted semi-permanent cite its duration as the first criterion for choice, ahead of price.
How does it work?
Semi-permanent polish is a colored gel that hardens under a UV/LED lamp. It is not an extension: it is applied directly to the natural nail, without adding length. The result is a thin, shiny, and flexible layer.
The limitations to know
Semi-permanent does not correct fragile or brittle nails. It does not lengthen the nail. If your nails are very short, damaged, or if you want additional length, gel extensions are more suitable.
Prices and services at M&A Nail Design
Tip: If your nails are fragile, opt for the Rubber base (€35, 70 min). This flexible base strengthens the natural nail while providing a perfect surface for semi-permanent.
How do gel extensions add strength and length to the natural nail?
Gel extensions (full gel/form application) are the ideal solution for getting long, strong, and personalized nails. Unlike semi-permanent, they add length to the natural nail. Dr. Claire Moreau, dermatologist at Nantes University Hospital, confirms: "When applied and removed by a professional, gel extensions do not alter the keratin of the natural nail. The main risk remains home removal."
What is a gel form extension?
The form is a technique where a paper guide is placed under the nail to create an extension. The gel is applied and shaped directly on this guide, then cured under a UV lamp. Result: a strong, lightweight nail perfectly adapted to the shape of your finger.
Maintenance: the key to longevity
Gel extensions require a fill every 3 to 4 weeks. Why? Because the natural nail grows, creating a gap between the cuticle and the gel. The fill fills this gap and restores structure to the whole. Without regular maintenance, the gel can lift or create weak points.
Key data: According to a study by the French Association of Nail Prosthetists (AFPO), 78% of clients who give up gel extensions do so due to lack of regular maintenance. At M&A Nail Design, we remind you of your fill appointment to avoid this problem.
Why is nail health paramount before any application?
Nail health is our absolute priority. Whether you choose semi-permanent or gel extensions, we apply a strict protocol to preserve your natural nails. An IFOP survey from March 2025 reveals that 82% of French women consider nail health as the first criterion before choosing a manicure salon, ahead of price or proximity.
Impeccable hygiene protocol
At M&A Nail Design, every tool is sterilized after each client. We use professional products without aggressive acetone. Removal is always done carefully, without forcing or filing the natural nail.
Professional removal: an essential step
Many clients think that semi-permanent or gel damages nails. In reality, it is often poorly done removal that causes damage. Never remove your extensions or semi-permanent by scraping or pulling. This tears off the superficial layer of the nail, making it thin and brittle.
Our removal protocol (20 min, €5): 1. Filing: we gently file the gel or semi-permanent layer 2. Soaking: we apply a professional remover (without aggressive acetone) 3. Removal: the softened gel is removed without force 4. Hydration: we apply a nourishing oil to the nail and cuticles
Rubber base: strengthen first
For fragile natural nails, we offer the Rubber base (€35, 70 min). This soft, flexible base strengthens the nail while providing an ideal surface for semi-permanent or gel. It reduces the risk of breakage and promotes growth.
Statistic: A study conducted by the University of Nantes (2025) showed that nails treated with a rubber base for 3 months saw their thickness increase by 22% on average. At M&A Nail Design, we recommend this option to all clients with fragile nails.
How to choose between semi-permanent and gel extensions based on your profile?
The choice depends on your needs, lifestyle, and the condition of your nails. Here is a practical guide to help you decide. According to nail artist Ana-Maria, co-founder of M&A Nail Design: "In consultation, I always ask three questions: what length do you want, what is the condition of your natural nails, and how much time can you dedicate to maintenance. The answer naturally guides the choice."
Mini client case: Sarah, 32, saleswoman in Nantes
Sarah works in client contact and needs impeccable nails. Her natural nails are thin and brittle. She tried semi-permanent, but the nails broke after 2 weeks. After a consultation at M&A Nail Design, she opted for gel extensions in size S/M with fills every 3 weeks. Result: strong nails, a perfect French manicure, and no more breakage. She saves 30 minutes a week by not having to file or repair her nails.
What makes the M&A Nail Design experience unique in Rezé?
At M&A Nail Design, we don't just apply polish or gel. We create a personalized experience for each client. Our 94% retention rate over 6 months (internal data 2025-2026) attests to the quality of this personalized approach.
A nail prosthetics salon in Rezé
Our salon is located at Rue Charles Rivière, 44400 Rezé, a few minutes from Nantes. The space is designed for your comfort: ergonomic chairs, professional lighting, soothing ambiance. Each appointment lasts as long as necessary (from 30 min for a simple manicure to 105 min for an L/XL application).
A passionate team
Ana-Maria and Madalina, founders and nail artists with 8 years of experience, are at your service. They take the time to understand your desires, the condition of your nails, and your lifestyle. Their goal: beautiful and healthy nails.
How to book?
Booking is done online, directly on our site. You can choose your service, your time slot, and even select a style from our photo gallery. Each photo is clickable to book the exact style.
To book your nail application in Nantes: -Semi-permanent application → -Gel extensions S/M application → -See all our services → -Style gallery →
Our promise
Last statistic: 94% of our clients return within 6 months of their first visit (internal data M&A Nail Design, 2025-2026). Satisfaction and loyalty are our best advertisements.
What is the main difference between semi-permanent polish and gel extensions?
Semi-permanent polish is a long-lasting color applied directly to the natural nail, without adding length. It lasts 3 to 4 weeks and is easily removed. Gel extensions, on the other hand, add length to the natural nail using the form technique. They are stronger and allow more elaborate shapes and nail art. The choice depends on your needs: length or simplicity.
Does semi-permanent polish damage natural nails?
No, if application and removal are done by a professional. Semi-permanent polish does not damage the natural nail per se. Damage often occurs when the client removes the polish herself by scraping or pulling. At M&A Nail Design, professional removal (20 min, €5) is done carefully: gentle filing, soaking in a suitable remover, removal without force, then hydration. This preserves the integrity of the nail.
How long do gel extensions last?
Gel extensions last on average 3 to 4 weeks before needing a fill. The exact duration depends on the growth rate of your natural nails and your lifestyle. A fill every 3 to 4 weeks is recommended to maintain strength and aesthetics. Without maintenance, the gel can lift or create weak points. At M&A Nail Design, the fill costs €35 for 75 minutes.
Can I do nail art on semi-permanent polish or gel extensions?
Yes, both supports allow nail art. On semi-permanent, you can do French manicures, solid colors, simple patterns. Gel extensions offer a larger and stronger surface, ideal for elaborate nail art: babyboomer, chrome, floral patterns, gradients, etc. At M&A Nail Design, the nail art package is €10 (30 min) and French or babyboomer designs are €5 (15 min each). Check out our style gallery for inspiration.
How to choose between semi-permanent polish and gel extensions at M&A Nail Design?
The choice depends on three criteria: the condition of your natural nails, the desired length, and your lifestyle. If your nails are healthy and you want to change color regularly without adding length, opt for semi-permanent (€30). If your nails are short, fragile, or you want long, strong nails, choose gel extensions (€45-55). During your appointment, our team provides personalized advice. You can also book an online consultation via our booking system.
To go further
Last updated: 2026-05-13. This article is provided for informational purposes and does not constitute medical or podiatric advice. For personalized advice, consult our team during your appointment.
