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    The theory book for perfect nails - the ultimate guide • The Gel Collection

    229,95 kr
    • Want to be even better at basic nail technique? • Are you geeky about nails and are interested in geeking out even more? • Do you experience challenges with your nail routine, durability or something else Read more

    Day to day delivery if ordered before 14

    Free delivery on orders over DKK 299

    Nominated for the Danish Beauty Award 2023 & 2024

    5 stars on Trustpilot


    • Want to be even better at basic nail technique?
    • Are you geeky about nails and are interested in geeking out even more?
    • Do you experience challenges with your nail routine, durability or something else entirely?

    At The Gel Collection, we care a lot that you get a good experience with your nail products - both in the short and long term. We make an incredible effort to deliver the best products, the best service and to make general knowledge about correct nail technique available to everyone. Based on this, we have prepared this large and detailed theory book of 80 pages, which can contribute with fantastic learning, relevant knowledge, good advice, guidance and much, much more. It has never been easier to become your own nail technician at home!

    The book reviews, among other things:
    • Basic nail theory
    • Anatomy and the natural nail
    • Nail types, nail shapes and growth directions
    • Nail damage and diseases
    • Chemistry and the UV curing process
    • Construction of the artificial nail
    • Upper arch, lower arch and apex - nail strength points
    • Prep - preparation of the natural nail
    • Lift - when the product lifts from the nail (causes and solutions)
    • Topping up and removing
    • Nail care
    • Nail biting and nail pills
    • Brush hygiene and preparation
    • A lot of in-depth and detailed step-by-step guides

    The theory book is aimed at everyone - from the beginner, who has to learn everything from scratch, to the experienced, who is always curious to learn more and become wiser. Basic nail technique and theory are the alpha and omega for a beautiful and durable result. Especially also so that you do not damage the natural nail, but on the contrary can establish a nail routine that contributes to healthy and strong nails.

    Although teoribook is based on the products from The Gel Collection, most of the knowledge is reviewed on a very general level. You can therefore easily use it if you also have products from other brands.

    Important: The book is automatically included in all starter packages.

    Get more knowledge about

    At Neglefeber, we are very keen that you have a good experience with your nail products. That's why we have a huge learning universe that can contribute to making you competent to do your own nails at home.

    Go to the learning universe here .

    Do you need help?

    Team Neglefeber is ready every weekday to help with everything from questions about purchases to advice on the use of the products.

    Phone: +45 3267 1717 (Mon-Fri 10am-3pm)


    Chat: Via the icon at the bottom right.



    Winner of 'Denmarks Best New E-Commerce Business' 2023

    Nominated for the Danish Beauty Award 2023 & 2024

    Winner of Costume Beauty Favorites 2023

    60,000+ worldwide happy customers - with beautiful nails

    Share your experiences with us #thegelcollection @thegelcollection

    Easy step-by-step with our learning universe

    Watch our video guides if you need help using our products. It's super easy and you can do your nails while you watch the videos.

    Our Special Gel Polish is super easy to apply


    Preparation of the nail


    Apply the product and cure in the UV lamp


    Finish with nail oil

    Products developed for easy and gentle removal

    Free of 21 types of harmful chemicals

    Retains color and shine for up to 6 weeks

    Can be removed quickly and gently


    How do I get started quickly and easily?

    Here is a simple overview to easily get started with doing nails at home:

    1. Buy a starter pack
    If you are in any doubt as to which starter pack is the best, you can buy our Gel Polish Starter Pack. Afterwards, you can buy an add-on package to be able to extend your nails, which suits you best.

    2. See our learning universe
    You can advantageously watch the videos that are necessary to review in relation to the products or the starter package that you have purchased.
    Our learning universe is simply structured so that you can get started easily and in the best possible way.

    3. BONUS - Become part of our community
    It is not a necessity to become part of our community, but it is both fun and can help you seek inspiration or answers to questions. Do you have e.g. a question outside of our opening hours, ask your question here. There are a lot of new but also experienced nail enthusiasts in there.

    You can become a member here.

    Which starter package should I choose?

    Gel Polish starter kit:

    Gel Polish gives a beautiful color and shine to the nails and lasts for up to three weeks. It can best be described as a hybrid between a classic nail polish and a gel, which, unlike classic nail polish, must harden under UV light to dry. When applying Gel Polish, your nail gets a little extra strength from our special Hard Base Coat.

    Gel Polish is therefore for you who do not want a reinforcement, but simply to get a nice and durable color on the nails. We do not recommend that you top up the Gel Polish, but that you take off every 3 weeks when you need renewal. If you want to be able to make a top-up, we recommend that you use a Rubber Base underneath your Gel Polish. You can see how to use Gel Polish here .

    Rubber Base starter pack:

    Rubber Base gives reinforcement to the natural nails. It can be used as a reinforcing base under Gel Polish color or used alone as a beautiful natural reinforcement. The consistency is relatively liquid and must be "slid" onto the nail at a fast pace. Rubber Base is particularly suitable for flaking, brittle, thin or split nails. In addition, the Rubber Base is designed to provide extra strength, which makes it good for providing a light reinforcement.

    Rubber Base comes in a bottle and can be applied in the same way as the classic base coat, or build up the nail with a small apex for more strength. The advantage of this product is that it can be removed with Fast Acetone Remover & Soak Off Wraps (You can see how here ) if full removal is desired. Remember that you don't have to remove the Rubber Base every time, but you can just fill it up when you need to. You can see on the link here how to make a correct filling

    Polygel starter pack:

    Polygel is perfect for both lengthening and strengthening your own nails, where the nail is built up from the ground up. Polygel is quite thick in consistency and must be modulated on the nail - a bit like modeling wax. It is good for beginners, as it is not liquid and therefore does not slide into e.g. cuticles. Polygel comes in a tube and is applied with a separate brush and Cleaner+. By using Polygel, you can easily make a top-up when you need to. You therefore do not need to remove the product every time you think your nails need renewal. You can see how to use Polygel correctly here .

    Liquid Builder starter kit:

    Liquid Builder is a Gel in a bottle, perfect for both short extensions up to 0.5 cm. It comes in a bottle with a brush for easy application. While specific instructions for Liquid Builder Gel are not yet
    available, the Rubber Base and Builder Gel instructions can be used as a reference. Liquid Builder Gel offers a choice of colors and can be used alone or as a strengthening layer under Gel Polish. Refilling is recommended every three weeks for maintenance, you can see here how to fulfill

    Builder Gel starter pack:

    Builder Gel is ideal for strengthening and extending natural nails, usable with templates or tips. It serves both as a reinforcement under Gel Polish or as an independent strengthening treatment. With its thick consistency, it is best applied with an Oval Brush to create the correct nail shape. Filling is possible without full removal, which makes maintenance easier. See instructions for use and refilling here .

    Soft Gel Press On starter pack:

    Soft Gel Press On Tipper provides a fast and durable nail extension without the need for advanced techniques. These tips are made from pre-hardened gel so they already have the ideal shape and length for easy use, especially for beginners. When using Press On Tipper, full removal is recommended when renewing, but they can also be applied with Polygel for the possibility of filling. You can see how to put them on here .

    What does 21FREE mean?

    All products from The Gel Collection are based on our 21free concept, which excludes 21 types of potentially harmful ingredients . Despite the fact that the ingredients are still legal, they can have an inappropriate effect on the human body and the environment, which is why it is important for us to avoid them in our products anyway.

    You can read more about our 21FREE concept here .

    What is The Gel Club?

    The Gel Club is a customer club for you who would like to get a little extra out of The Gel Collection. The customer club gives you the opportunity to earn points on all your purchases, which you can later exchange for discounts via gift cards.

    How do I earn points?

    You simply have to be registered in The Gel Club and be logged into your account when you place an order. Then your points are automatically credited to your account.

    How many points do I earn?

    As a member of Klub Neglefeber, you start in our Gold group, where you earn 3 points per DKK 1 you shop for. When you have spent over DKK 2,000 during a whole year, you will be upgraded to our Diamand group, where you earn 4 points per DKK 1 you shop for. If you spend more than DKK 4,000 in a year, you will even be upgraded and transferred to our VIP group, where you earn 5 points per DKK 1 you shop for. Now, the more you shop with us, the bigger discounts we make sure to give you.

    In addition to the fact that you get points for shopping, we also think that you should have some extra gifts once in a while. You therefore also get points on your birthday if you refer a friend or if you complete some small tasks such as to leave a product review or follow us on Instagram. And again it is the case that the most points are awarded in the VIP group.

    How do I use my points?

    When you have earned some points at Klub Neglefeber, you can exchange these points for discounts via gift cards. You simply log in to your profile and choose how many points you want to redeem. You will then receive a code for the selected amount, which you can use the next time you shop.

    How long do the products last?

    Although we have removed many chemicals in our products, we have not compromised on quality and durability.

    If you use a Gel Polish, it will last for approx. 3 weeks. Do you use a product for extension, e.g. Press On Tipper, they will be able to last up to 6 weeks.

    Here are the short facts about our Gel Polish:

    • Developed without the use of 21 types of harmful and unwanted chemistry
    • Added minerals for increased durability and strength
    • Easily soluble form that ensures gentle removal
    • Vegan and free of palm oil
    • Developed and produced in Europe
    • Durability of up to 3 weeks for our Gel Polish

    How do I purchase my products?

    All products from The Gel Collection can be easily removed by dissolving with our Fast Acetone Remover . We have developed an easily soluble formula to ensure a gentle removal method, regardless of which product you use.

    When it comes to Gel Polish, it is often necessary to remove the product every 2-3 times. week, especially if you want to change color or experience lifting in the product. If you use a reinforcement product such as Rubber Base, Polygel, Liquid Builder or Builder Gel, it is not actually necessary to remove it. Nails are made up of dead skin cells and do not need oxygen, so it is always recommended to do top-ups on strengthening products rather than removing them completely.

    If you still want to remove all the product, as mentioned, this can be dissolved in Fast Acetone Remover , where it requires that you have filed off 80-90% of the product before the soak-off process begins.

    To learn more about how to take off correctly, you can consult our step-by-step guide in the theory book or watch our video guides in the learning universe here .

    Get personal help and guidance. Contact us!

    Our skilled team is ready to help you.

    start chat

    Sign up to The Gel Club to earn points on purchases. You earn your first 2,000 points upon registration - completely free.

    • Earn points when you shop
    • Up to 5% off
    • Get points when you help us
    Free registration and no obligation

    Customer Reviews

    Based on 24 reviews
    Næsten perfekt

    Super glad for denne bog! Jeg savner dog en beskrivelse af hvordan man påsætter Press on tipper med polygel 😅

    God læring

    Som ny begynder er det vildt lækkert med sådan en bog. Er stadig ny, men er meget visuel, så lærings videoerne er virkelig dejligt at have under processen


    Dejligt at få med “gratis” i startpakkerne.


    Bruger den hele tiden

    Kaisa Bøttcher
    God bog

    Virkelig god bog når man ikke har prøvet og lave sine egne negle før

    Masse god info samlet på ét sted

    Denne bog er super god, fordi der er så meget god info til at hjælpe dig på vej.