Foundation is the most common makeup product there is, and one of the hardest to get right.
Most people choose theirs based on a recommendation. A friend swears by it. An influencer can’t stop talking about it. Sometimes even a professional suggests it. And still, so many people end up with a foundation that isn’t quite right: the wrong colour, the wrong finish, or a formula that looks lovely for an hour and then falls apart.
On the shop floor, I saw it constantly. Someone would swatch a shade in store, it would look fine, and then they’d get home and realise it was completely wrong.
The problem is that we tend to think of foundation as one product in a range of colours. It isn’t. Every foundation is a combination of formula, finish, coverage and colour, and each one needs to suit your skin. Colour is usually where people start, and it’s usually where they get stuck. But it’s actually one of the last things to consider.
Start with your skin
Everything begins with your skin type and condition, just as it does with skincare.
Dry skin needs a formula that adds moisture and won’t cling to dry patches. Oily skin needs something that controls shine and lasts through the day. Combination skin needs balance. Sensitive skin needs simplicity.
A good way to work out what you need is to look at how your current foundation behaves by mid-afternoon. If it’s clinging to dry patches, your skin needs more moisture from its base. If it’s sliding or shiny, it needs more control.
Formula: the foundation of your foundation
Formula is the most important choice, and the most overlooked.
Most foundations are liquid, and it’s easy to see why. Liquid foundations come in the widest range of shades, textures and claims. But “liquid” only describes the texture. Underneath, liquid foundations can be built on very different bases, and that base decides how the foundation behaves on your skin.
- Water-based foundations are lightweight and breathable. They tend to suit oily, combination and sensitive skin.
- Silicone-based foundations feel smooth and silky, blur pores and texture, and often last longer. They suit most skin types, particularly if you want a longer-wearing finish.
- Oil-based foundations are richer and more nourishing, with a softer, more radiant finish. They suit dry and mature skin, but can slide on oily skin.
- Powder foundations, pressed or loose, absorb oil and are quick to apply. They suit oily skin, but can emphasise dryness and fine lines.
- Cream and stick foundations tend to give more coverage, and suit dry and balanced skin.
- Skin tints and tinted moisturisers give the lightest coverage, and suit anyone who wants their skin to look like skin.
I’ll never forget one client who came to me, completely frustrated. She’d tried a liquid foundation from one brand, then another, then another. By then, she’d tried almost every brand on the market, and nothing worked. Every foundation looked dry, patchy and tired on her skin by lunchtime.
But when we talked through what she’d actually tried, there was a common thread. Every single one had been a lightweight liquid foundation. And she had dry skin.
What she needed was an oil-based foundation, one that would hydrate and nourish her skin rather than sit on top of it. The first time she tried one, the difference was immediate.
Nobody had told her, because nobody had stopped to look at what she’d already tried and noticed the link. She’d spent years changing brands, when what she needed to change was the formula.
And once she knew that, shopping for foundation became easy. She could walk into any brand and look for their oil-based or nourishing formulas, which gave her far more choice than any single “perfect” foundation ever could.
You don’t need to read ingredient lists to do the same. Most brands describe the formula in the product name or description, with words like hydrating, nourishing or oil-infused for richer formulas, and oil-free, matte or long-wear for lighter or longer-lasting ones. If you’re unsure, ask whoever is serving you what the foundation’s base is. A good beauty advisor will know.
Finish
Finish is how your foundation looks once it’s on your skin.
- Matte reflects very little light. It suits oily skin, but can look flat or dry on drier skin.
- Satin or natural sits in between, with a soft, skin-like finish. It suits most skin types.
- Dewy or radiant reflects light, giving a fresh glow. It suits dry and mature skin, but can look shiny on oily skin by the end of the day.
The simplest rule is to choose a finish that balances your skin, rather than one that exaggerates what it already does. If you’re unsure, satin is the safest place to start.
Coverage
Coverage is how much the foundation covers: sheer, light, medium or full. Many foundations are also buildable, meaning you can apply a thin layer and add more only where you need it.
Coverage also changes how precise your shade needs to be. The more coverage a foundation has, the less forgiving it is, and the closer the colour match needs to be. A full-coverage foundation in the wrong shade is obvious. A sheer skin tint in a slightly-off shade will often blend in, because more of your own skin shows through.
Which means that if you’ve always struggled to find a perfect match, a lighter-coverage formula, with concealer only where you need it, may solve more than you’d expect.
Colour
Only now do we get to colour, and there are two parts to it.
- Depth is how light or deep the shade is.
- Undertone is the colour beneath the surface of your skin: warm, cool, neutral or olive.
Undertone is where most people get stuck, because every brand defines it differently. One brand’s “warm” is another brand’s “golden.” Some use letters, like W, C and N. Others describe undertones as pink, yellow, red or peach. There’s no universal system.
But here’s the part most people don’t realise: you don’t need to know your undertone before you shop. Your skin will tell you.
Take two shades at the same depth, one warm and one cool, and swatch them side by side on your jawline. The one that disappears into your skin is your undertone. The wrong one will be obvious: a shade that’s too warm tends to look orange or yellow, and one that’s too cool tends to look pink or grey. If neither looks right, with warm looking orange and cool looking grey, you’re likely neutral or olive, so try a neutral shade next.
Once you’ve found your match, make a note of the depth and undertone, for example “medium, neutral.” It won’t translate perfectly between brands, but it gives you a far better starting point next time.
Why the shade looked right in store
This is the experience almost everyone recognises, and there are a few reasons for it.
- Where it was swatched. The back of your hand or your wrist is rarely the same colour as your face. Even your neck and face can differ.
- The lighting. Store lighting is designed to flatter products, and it’s often very different from daylight. A shade that looks perfect under bright store lights can look completely different at home.
- Your natural variation. None of us are one colour. On lighter skin tones, the neck is often lighter than the face, while areas where the sun naturally hits, like the forehead, nose and cheeks, are often warmer or deeper. Deeper skin tones often have more variation again, with some areas naturally deeper than others.
- Oxidation. Some foundations darken or warm up slightly once they’ve been on the skin for a while, as they react with your skin’s natural oils and the air. A shade that matched when you first applied it can look deeper an hour later.
That’s why the jawline is the place to match. It’s where your face meets your neck, so a shade that matches there won’t leave a visible line. If you’re between two shades, choose the one that matches your neck, and add warmth to your face with bronzer. And if a foundation oxidises on you, try it half a shade lighter.
The funnel technique
This is the method I’ve always used to help someone find their match. I think of it as a funnel: start with the biggest questions, and narrow down to the smallest.
- Skin type and condition. This decides your formula.
- Formula. Water, silicone, oil, powder or cream. This alone rules out a lot of options.
- Finish. Matte, satin or dewy, chosen to balance your skin.
- Coverage. How much you actually want, remembering that more coverage needs a closer colour match.
- Depth. Narrow down to two or three shades around your depth.
- Undertone. Swatch them side by side, and find the one that disappears.
Then test properly. Swatch along your jawline in thin stripes, blending slightly down onto your neck. Check it in natural light, near a window or outside. Wear it for a few hours to see how it wears and whether it oxidises. And ask for a sample before buying, so you can see it on your skin at home, in your own light, over a full day.
By the time you reach colour this way, you’re only choosing between two or three shades, all in the right formula, finish and coverage for your skin. That’s what makes the final choice so much easier.
Sometimes, one shade isn’t enough
Sometimes, the perfect foundation shade simply doesn’t exist. Not because your skin is difficult, but because skin is multidimensional. We’re not one colour, and our skin changes with the seasons.
This is why makeup artists rarely rely on a single shade. They mix and match, blending two tones to match the natural highs and lows of the skin.
You can do the same with two shades, one slightly lighter and one slightly deeper. Mix them to find your exact match, lean lighter in winter and deeper in summer, or use the lighter shade in the centre of your face and the deeper one around the edges. It’s probably the most foolproof way to find a foundation that truly matches.
A foundation is just that
Finally, it’s worth remembering what foundation is for. It’s a base.
On its own, even the most perfectly matched foundation can make skin look a little flat, because it evens everything out into a single tone. That’s why makeup artists always build on top of it, with concealer, bronzer, blush and highlight, to bring back the dimension that natural skin has.
Get the foundation right, and everything you add on top of it has something good to work with.
The short edit
The essentials:
Choose a foundation in this order: skin type, formula, finish, coverage, then colour. Colour matters, but it’s the last step, not the first.
Ask yourself:
Have I been changing brands, when what I actually need to change is the formula?
Worth knowing:
You don’t need to know your undertone before you shop. Swatch a warm and a cool shade at the same depth on your jawline, and the one that disappears is yours.
