1. Never Remove the Labels from Your Gel Bottles

Do not remove the labels from your gel bottles. The label is not there for decoration. It is not added because the importer, distributor, or Responsible Person likes stickers. It is there because cosmetic products placed on the EU market must carry legally required information.

For professional nail products, the label helps identify what the product is, who is responsible for placing it on the market, how the product can be traced, and what precautions apply. The Responsible Person information is especially important because authorities need to know who is legally responsible for the cosmetic product in the EU.

When Pretty Yeppuda labels products, this is part of making the product ready for the European market. The label may include or support essential information such as the product identity, batch information, precautions, ingredients, country of origin where relevant, and the Responsible Person details. This is not optional information. It is part of cosmetic compliance.

If you remove the label, you create a practical and legal problem. During an inspection, a bottle without the required information may be considered improperly labeled. If authorities cannot identify the product correctly, they may question whether the bottle can remain in professional use. In the worst case, you risk losing the product during a control because it no longer carries the required information.

There is also a responsibility issue. If the product was correctly labeled when it was supplied to you, but you removed that label, the problem is no longer created by the supplier. It is created by the person who removed the legally relevant information from the bottle.

There is also a simple practical reason: these labels are not supposed to fall off easily. They are made to stay on the bottle during normal use. Trying to peel them off can damage the bottle, remove the original finish, leave glue residue, or make your professional setup look messy. Damaged bottles do not look clean, organized, or salon-ready.

Professional rule: keep the original label on the bottle. If you need extra organization, use a shelf label, drawer system, color chart, inventory code, or separate swatch system. Do not remove the compliance label from the product itself.

2. Never Do Gel Nails Outside

Do not perform gel manicures outside. Not in full sun. Not on a terrace. Not at a summer market table without proper protection. Not even in the shade if the products are exposed to daylight for a longer period.

Gel polish and builder gels are designed to cure when exposed to specific light wavelengths. That is exactly why you place the hand under a UV or LED lamp. The lamp does not perform magic. It activates the photoinitiators in the product, which start the polymerization reaction. The gel changes from a liquid or semi-liquid material into a hardened polymer network.

Sunlight also contains UV light. Even when you are not standing in direct sun, outdoor daylight may still contain enough UV exposure to affect sensitive gel products over time. The result can be very annoying: the gel becomes thicker, stringy, harder to control, and less smooth during application.

This can happen in the bottle, on the brush, on the palette, or directly on the nail before you are ready to cure. A product that was supposed to self-level nicely may suddenly drag, form uneven patches, or become difficult to apply thinly. Fine nail art lines may become bulky. Detail work may become less precise. Your working time becomes unpredictable.

Outdoor work also creates extra contamination risks. Dust, pollen, insects, sand, wind, and uncontrolled temperature can all interfere with clean application. A professional gel manicure requires control: controlled light, controlled hygiene, controlled product handling, and controlled curing.

This does not mean you can never create content outside. You can photograph finished nails outside. You can film lifestyle content outside. You can show color reflections in daylight after the product is fully cured and cleaned. But the actual product application should be done in a suitable indoor workspace, away from uncontrolled UV exposure.

Professional rule: apply gel products indoors, away from direct daylight and uncontrolled UV exposure. Use your lamp when you want polymerization to start, not before.

3. Never Store Gel Bottles in Sunlight

Do not store gel bottles in sunlight. A beautiful display shelf near a window may look attractive, but it is not the right place for UV-curable gel products.

Gel products should be stored in a dark, cool, and stable environment according to good professional practice and the supplier’s instructions. A drawer, closed cabinet, storage box, or protected salon trolley is usually much better than an open shelf exposed to sunlight.

The reason is simple: polymerization does not wait for your approval. If the product receives enough light in the right wavelength range, the curing process can begin. It may not fully cure the whole bottle immediately, but it can start changing the product. You may notice thickening, small cured particles, stringiness, product around the neck becoming rubbery, or the brush becoming contaminated with partially cured gel.

Once a gel product has partially polymerized inside the bottle, you cannot reliably reverse that process. Adding thinner, mixing aggressively, or trying to “save” the bottle is not good professional practice unless the manufacturer specifically provides such instructions. In many cases, the product is simply damaged.

Sunlight can also heat bottles. Heat may accelerate product degradation or change viscosity. Repeated heating and cooling is not ideal for maintaining consistent performance. A product that was designed to apply smoothly may become more difficult to control if it has been stored badly.

Good storage is also good business. Gel products are professional stock. They cost money. They must remain identifiable, usable, and consistent. If you damage your stock by storing it in sunlight, that is avoidable waste.

Professional rule: keep gel bottles closed, upright, clean, and away from direct sunlight. Store them in a drawer, cabinet, or box when not in use.

Pro Tip: keep you empty gel bottles, aand use those to display the beauty of Korean nail gel polish bottles.

4. Never Let Uncured Gel Touch the Skin

Uncured gel belongs on the nail plate, not on the skin. This is one of the most important professional habits for every nail artist.

Many gel products contain acrylate or methacrylate chemistry. These ingredients are useful because they allow the gel to cure into a durable coating. But before curing, the product is still reactive. Repeated or unnecessary skin contact with uncured gel can increase the risk of irritation or sensitization, especially when products are used incorrectly, applied too close to the skin, or cured while touching the surrounding nail fold.

This is why clean application matters. Flooding the cuticle is not just a visual problem. It is also poor product control. If gel runs into the cuticle area or sidewalls, it should be removed before curing. Do not cure gel on the skin and then file or peel it away afterwards. By that time, the product has already been in contact with the skin during the curing process.

Skin contact can happen in small ways: too much base gel, a brush overloaded with product, a client moving during application, working too fast, using a product with the wrong viscosity for the technique, or applying builder gel too close to the nail fold. These are technique issues, not product features.

Good nail work is controlled nail work. Leave a small, clean margin around the cuticle and sidewalls. Use the right brush angle. Work in thin layers. Do not overload the brush. If product touches the skin, remove it immediately with an appropriate tool before curing. If the skin is already irritated, damaged, inflamed, or reactive, do not simply cover the problem with gel.

Clients may not understand this chemistry, but professionals should. A clean application protects the client, protects the nail artist, and improves the final result. It also reduces lifting because gel cured onto the skin or cuticle area can create edges that detach as the nail grows.

Professional rule: apply uncured gel only to the nail plate. Remove any accidental skin contact before curing.

5. Never Transfer Gel into Unmarked Containers

Do not transfer gel into unmarked pots, bottles, jars, or palettes for storage. This is a common mistake, especially when nail artists want a cleaner-looking setup, smaller working pots, or custom color mixtures. But from a professional and compliance point of view, it creates several problems.

The original bottle connects the product to its identity. It tells you what the product is, which brand it belongs to, which batch it came from, and which Responsible Person is linked to the product on the EU market. When you decant the product into an unmarked container, you break that chain of information.

After a few weeks, will you still know exactly what is inside the jar? Will your colleague know? Will an inspector know? Will you know the batch number if there is a product question, complaint, or recall? Will you know the precautions, ingredients, and original supplier? If the answer is no, the container should not be used as professional stock.

Unmarked containers also create contamination risks. Every transfer introduces contact with air, tools, surfaces, and other materials. If the new container is not designed for UV-curable gel, it may not protect the product properly from light. If it does not close well, the product may thicken or become contaminated with dust. If it previously held another product, residues may interfere with performance.

Custom mixing creates an additional issue. Once you mix products, you may no longer be working with the product as supplied and assessed. A small amount mixed for immediate nail art use is different from creating a new stored product in an unmarked jar. The more you modify, store, and reuse mixtures, the more responsibility you take for identity, stability, hygiene, and performance.

If you need to create a custom color for one set, mix only what you need for that service on a clean palette and use it immediately. Do not build a drawer full of mystery gels. If you absolutely must store a working mixture, it should be clearly labeled with the product names, date of mixing, and other relevant information. But as a general professional rule, avoid decanting and long-term storage of gel outside its original container.

Professional rule: keep gel products in their original labeled containers. Do not create unmarked mystery pots.