Cat eye gel polish is a magnetic gel polish containing fine metallic particles. When you bring a magnet close to a layer that has not yet been cured, the particles gather in one spot and create a shimmering stripe that moves like a cat's pupil as you turn your hand. The key is to hold the magnet close for a few seconds and cure the nail in the lamp straight away, before the particles disperse.
How the cat eye effect works
The particles in magnetic gel reflect light. While the polish is still liquid, the magnet attracts them and lines them up: where the magnetic field is strongest, a bright line of light forms, while a darker, deeper background remains around it. The longer you hold the magnet, the sharper and narrower the effect becomes.
The lamp then "locks in" this look. If too much time passes between the magnet and the lamp, the particles start to drift back and the line blurs. That is why the cat eye technique is done one or two nails at a time, rather than the whole hand at once.
At Nailshop.lt you will find the Cat Eyes gel polishes category, which includes both polishes and magnets. The manufacturer's description states that the effect depends on the type of magnet you choose, so the same polish, for example Cat Eyes 227, can look very different.
Which magnet you need for cat eye polish
The magnet determines the shape of the effect, so it is worth having at least two different ones:
- Stick or bar-shaped magnet – for the classic narrow stripe across the middle of the nail or on a diagonal.
- Wide flat magnet – for a broad glow or a velvet effect, where the particles spread across the whole nail.
- Patterned magnets – designed for patterned effects, such as lines or diamonds. Our Cat Eye magnets come in several versions, with different patterns marked on their surface.
- Double-ended magnets – two different shapes in one tool, handy when you don't want to keep several tools on hand.
The instructions for our magnets say to bring the magnet to within 2–3 mm of the polished nail, hold it for 5–20 seconds and then cure the nail in the lamp. After you have finished, wipe the magnet clean: leftover polish or dust makes it harder to hold it at a consistent distance, and in a salon clean tools are also a hygiene requirement.
The base: black, clear or coloured
Cat eye polish is applied over an already cured base, and this base changes the result significantly:
- Black base – the highest contrast and the deepest effect. A black gel polish works well here, for example gel polish 5.7 BLACK.
- Coloured base – the effect picks up the shade of the base: it looks warmer over burgundy and cooler over navy.
- Clear or nude base – a subtle, translucent glow, suitable for an everyday or office manicure.
There is also an alternative to magnetic polish – 5D Cat Eyes powder. According to the manufacturer's instructions, it is rubbed into black gel polish with a tacky layer, the excess is brushed off, a top coat is applied and, while it is still uncured, a magnet is held to the nail for 3–5 seconds. Only then are the nails cured in the lamp.
Cat eye gel polish: the technique step by step
- Prep the nail as for any gel polish application: tidy the cuticles, remove the natural shine, dehydrate, apply the base coat and cure it.
- Base colour. Apply 1–2 thin layers of your chosen base colour and cure each one.
- Mix the cat eye polish. The metallic particles settle at the bottom, so roll the bottle between your palms several times before you start.
- Apply the cat eye layer to one or two nails. The layer should be even and not too thin – the particles need room to move.
- Bring the magnet close at a distance of 2–3 mm and hold it until the effect appears. Do not touch the polish with the magnet.
- Cure immediately in the lamp, keeping your fingers flat.
- A second layer is optional, but it adds depth. Repeat the magnet and lamp steps.
- Top coat. Finish with a clear top coat, for example Crystal Top Coat, and cure. A matte top coat over cat eye gives a softer, velvety look.
Effect variations: stripe, star, 3D and velvet
- Classic stripe. Hold the stick magnet parallel to the nail, above its centre. Tilt the magnet and the stripe becomes diagonal.
- "Star" or dot. Point the tip of the magnet straight at the centre of the nail – the light gathers into a single point and the edges darken.
- 3D effect. First hold the magnet briefly at one side of the nail, then at the other, and finally above the centre. This creates an impression of depth and a rippling glow.
- Velvet effect. Slowly move a wide magnet over the whole nail – the particles spread evenly and the nail looks like velvet.
- Patterns. With a patterned magnet you can create lines or a geometric design without a brush.
In every case it is worth testing the effect on a tip or a palette: this shows you how a particular polish reacts to your magnet and saves you from having to make corrections on the nail.
Most common mistakes: particles settling, the effect spreading
- The effect is weak or faint – the polish was not mixed or the layer was too thin.
- The line spreads out – too much time passed between the magnet and the lamp, or you polished the whole hand at once. Work on 1–2 nails at a time.
- The effect shifts – your fingers were tilted when you put your hand in the lamp, and the particles slid. Keep your fingers flat.
- The magnet left an imprint in the polish – the magnet touched the surface. Hold it a few millimetres away.
- Waves and wrinkles – the layer was too thick and did not cure fully. Two medium layers are better than one thick one.
- The coating peels off – the magnet is not to blame; the cause is the prep, the base coat or too short a cure. Cure each layer for as long as the manufacturer states.
Cat eye with French and ombre designs
French version. Cover the whole nail with a nude or milky base, apply the cat eye polish only to the nail tip and bring the magnet close to the edge – a light line will appear along the smile line. Another idea is a classic white tip over a dark cat eye base. We cover French manicure techniques in the article French manicure with gel polish.
Ombre. Apply the cat eye polish over the whole nail and hold the magnet only near the nail tip or only near the base. The particles gather on one side while the other stays darker – giving you a soft gradient without a sponge.
For all variations it is important to cure each layer well, so use a UV/LED lamp that lights the edges of the nail evenly too.
Frequently asked questions
How do you create a cat eye effect with a magnet?
Apply the cat eye polish over a cured base, bring the magnet to within 2–3 mm for a few seconds and cure immediately in the lamp. Finish with a top coat.
Which magnet do you need for cat eye polish?
A stick-shaped magnet for the classic stripe, a flat magnet for a broad glow and the velvet effect. Patterned magnets are designed for lines and geometric patterns.
Why does the cat eye effect spread out?
Most often because too much time passes between the magnet and the lamp, or the hand is put into the lamp at a tilt. Work on one or two nails at a time and cure immediately.
Does cat eye polish need a black base?
Not necessarily. A black base gives the highest contrast, a coloured one changes the shade of the effect, and a clear or nude one creates a subtle glow.