How to choose a lipstick color online: virtual try-on

"Katarzyna, I bought the wrong nude again. And it's a Tom Ford for €60!" one of my clients, an IT manager, recently wrote to me. Over the course of six months, she'd amassed a collection of five "wrong" lipsticks from Charlotte Tilbury and Tom Ford, wasting over €250. All because she'd tested them on her wrist under the merciless halogen lights of a shopping mall corner. We solved the problem in five minutes when I forced her to choose a lipstick color online using a smartphone in normal daylight.

Sounds like magic? No, it's simply the clever use of AR algorithms. We covered the architecture and development of this technology in more detail in our The complete guide to virtual makeup try-ons Today, I'll give you clear instructions on how to turn your phone camera into a precise diagnostic tool. No magic—just color physics and neural networks that will help you never again waste your budget on shades that make you look older.

Why Swatches on Your Hand Don't Work Anymore (and How to Choose a Lipstick Color Online)

Let's be honest: painting stripes on your wrist at the store is the worst possible way to choose makeup. The skin on your hand is completely different from the skin on your lips. We don't have natural pink or purple pigment on our wrists; they have different blood circulation, and the veins show through the thin skin. When you apply lipstick to your hand, you see the pigment laying on a yellowish or pinkish canvas, while your lips have their own solid color base.

A 2023 study by the analytics agency Mintel revealed alarming statistics: the average European woman spends around €350 per year on cosmetics that don't suit her. Take a look at your makeup bag. We bet you have 15-20 lipsticks in there, but you only use 2-3 regularly? The rest is that "graveyard" of lipsticks, bought under the influence of studio lighting in the store.

The lighting in cosmetics stores is tuned to make everything sparkle and sell, not to reveal the truth. Cool LEDs enhance blue undertones, while warm halogens turn neutral nudes into a reddish brick.

Modern AR technologies and neural networks solve this problem radically. Virtual try-on algorithms don't simply apply a color mask. They recognize over 100 micro-regions of your lips, take into account your natural pigment, and create a color match exactly as it would blend in real life. This makes online try-ons far more reliable than offline ones—provided you do everything correctly.

4 Rules for the Perfect Virtual Fitting: How to Avoid Fooling the Neural Network

A neural network isn't a magic wand. If you feed it bad data, you'll get a distorted result. I constantly see girls trying to test makeup on apps while on the go, on the subway, from the bottom up, with bad internet. It doesn't work that way. You need to prepare for a digital try-on the same way you would for a visit to a makeup artist.

Lighting: Remove the ring light

No artificial light. Popular ring lights destroy midtones, flatten the face, and add a cold, neon glow that won't appear in real life. Lipstick should only be tested in one scenario: standing (or sitting) facing a window, with soft, diffused daylight falling on you. Direct sunlight is also unsuitable—it will burn out the colors on your screen.

Neutral canvas: hair and clothing

Did you know that your neon green sweater or bright crimson blouse casts a reflection on your chin and lower face? Your smartphone camera picks up this reflection, and AI interprets it as part of your skin undertone and begins "correcting" your lipstick to match the non-existent shade. My strict stylist advice: wear a simple white, black, or gray T-shirt. Pull your hair back into a sleek ponytail to avoid casting shadows on your face. Your face should be completely clean—free of foundation and old lipstick.

Color Theory in the Age of AI: Finding Your Undertone Without Errors

Forget the old glossy advice from the 2000s: "Look at the veins on your wrist: if they're blue, you're cool; if they're green, you're warm." It's a gross oversimplification that has led to millions of mistakes. In my practice, I rely on the color theory of Johannes Itten (a Bauhaus teacher), adapted for portraiture. We're interested in two parameters: temperature and contrast level.

Instead of guessing with veins, open makeup try-on feature in the MioLook app The neural network will instantly show your reaction to different temperatures.

• Contrast test. Why does a trendy pale nude sometimes make your face look "sick" by erasing your lips? If you have a high-contrast complexion (for example, porcelain skin and dark eyebrows/hair, like a classic "winter"), a light lipstick will disrupt the harmony. You need a color that complements the natural contrast. Conversely, if you're a "soft summer," a stark fuchsia will simply "eat up" your features—people will see your lipstick walking down the street, not you.
• Tooth enamel color test. This is a critical detail that 90% of women forget. Red lipsticks with a cool (bluish) base act as a visual whitener for teeth. However, warm (orange-brick) shades will instantly highlight even the slightest yellowness of enamel.

Matte, satin, or sheen? How texture changes color perception.

From a color physiology perspective, the same digital code (hex) will look completely different in matte and glossy finishes. Texture dictates form and mood.

I recently conducted a personal test comparing budget lines (KIKO Milano) and mid-market (Zara Beauty) in the €10-€15 range. I chose the same deep wine shade. In the matte version, it absorbed light (matte textures have a reflectivity of less than 5%), making lips appear thinner and adding an overly austere look—perfect for a classy business look, but too heavy for everyday wear. The same color in a translucent glossy balm reflected light, added volume, and looked like fresh berry juice.

Modern AR apps have learned to perfectly simulate the physics of light in cosmetic bases. When choosing a product online, pay attention to the stated finish. If you're choosing a lipstick for a Zoom conference, choose a satin or matte finish—a high gloss finish will make your lips appear thicker on the webcam.

The main myth: "Red lipsticks absolutely don't suit me."

"I've tried red three times in my life, and every time I looked like a '90s barmaid," is a typical complaint from my new clients. This myth is based on the traumatic experience of choosing the "wrong" red. Red suits absolutely everyone. The problem isn't the color, but the wrong temperature or the wrong texture.

Finding your perfect red lipstick offline is physical torture. Try applying 10 different red lipsticks in a store, removing each one with micellar water. By the fifth try, the skin around your lips will be red and inflamed, and any subsequent shade will look terrible against this irritation. Virtual try-ons allow you to painlessly try 20 shades (from brick red to cool ruby) in two minutes. You'll immediately see how wine-colored lipstick drains the aristocratic pallor from your skin, while scarlet brings out the warm golden freckles.

Checklist: A Smart Online Lipstick Shopping Algorithm

As someone who hates a chaotic wardrobe and makeup bag, I've developed a strict algorithm for my clients. Here's how to use try-on apps to ensure 100% successful shopping:

1. Prepare your face and base. Clear skin without tone, neutral t-shirt, daylight from the window. Important caveat: this does NOT work if you already have a thick shimmery balm or glossy lip balm on your lips—the glare will throw off the AI algorithm. Lips should be dry and clean.
2. Open an application (for example, MioLook ) and calibrate the focus. Make sure the camera clearly captures the outline of your lips.
3. Determine your contrast range. Try on three radically different colors (light nude, neon fuchsia, dark wine). This will immediately reveal the boundaries: at what point the face begins to fade, and at what point the lipstick begins to scream.
4. Play with textures. Once you've found a color you like, see how it performs in matte and glossy finishes.
5. The 15-minute rule. Take a screenshot of a successful shade, close the app, and have a coffee. The human eye quickly becomes overwhelmed and adapts to brightness. Look at the screenshot with fresh eyes in 15 minutes—if you still like it, add the real lipstick to your cart.

Stylist's Summary: Investing Wisely in Your Makeup Bag

Makeup isn't a gimmick. It's as important a part of your personal brand and image as a well-tailored jacket or quality leather shoes. A cheap, inappropriate lip color can ruin an outfit worth hundreds of euros.

I encourage you to treat AR technology not as a social media toy with funny masks, but as a serious filter for your budget. Conscious consumption starts here: it's better to have exactly three perfectly matched lipsticks in your makeup bag (a reliable nude for every day, a prim satin for business meetings, and a luxurious red for evening wear) than to have fifteen random tubes bought under stress.

The next time you reach for a color tester in a store, stop. Step out into the daylight, pull out your smartphone, and check whether that color is truly yours or just a merchandising gimmick.