The research behind our Anti-Age Day Cream

What a day cream should do, why two sizes of hyaluronic acid matter, what a marine ferment adds, and what the research does and doesn't prove.

Most day creams make the same promise and fail the same test: skin feels lovely for an hour, then tight by lunchtime. What separates a good day cream from an average one is how well it holds on to water, and how it feels while doing it.

This guide explains what a day cream should do and goes through our Anti-Age Day Cream ingredient by ingredient. If you only want the product, the day cream page has everything in one place.

01What a day cream should do

A day cream has three jobs. It should hydrate, so skin feels comfortable; it should keep that hydration in place through heating, air conditioning and weather; and it should sit well under sunscreen and makeup without pilling or sliding. Anti-ageing claims come after those basics, and most of the visible difference people notice from a good day cream comes from hydration itself: well-hydrated skin looks smoother and reflects light more evenly.

There's also the question of feel. A day cream you enjoy putting on, that doesn't leave a greasy shine or tighten as it dries, is one you'll use every single morning. That consistency matters more than any individual ingredient.

02What changes in mature skin

With age, skin makes less of its own oil and holds less water in its outer layer. Hyaluronic acid levels in the skin decline, the barrier becomes a little less efficient, and dryness shows more easily as fine lines. None of that can be reversed by a cream. What a good cream can do is supply water-binding ingredients and lipids that make up some of the difference, every day.

03Humectants and emollients, explained

A good day cream needs all four. Humectants without emollients can leave skin feeling tight as water evaporates; emollients without humectants add softness but little water. This formula balances both.

04How we rate the evidence

None of these studies tested our cream. It doesn't have its own consumer testing yet, so we don't show results for it.

05Hyaluronic acid

06Why two sizes

Hyaluronic acid comes in very different sizes, measured in kilodaltons (kDa). Large molecules, such as sodium hyaluronate, stay on the surface and form a light film that holds water there. Smaller, hydrolysed forms are light enough to work in the outer layers of the skin. In the Pavicic trial above, every size improved hydration, but only the two smallest reduced measured wrinkle depth.

That's why a mix makes sense: the large form for immediate surface hydration and comfort, the small form for deeper, longer-lasting hydration. We don't know the exact weights in our cream; we know it contains both a large and a small form.

07The marine ferment

08Betaine and glycerin

Betaine is a plant-derived humectant, originally from sugar beet, that helps skin cells hold water and gives creams a soft, non-sticky feel. Glycerin is one of the best-evidenced humectants there is; a 2008 review in the British Journal of Dermatology (Fluhr, Darlenski and Surber) summarised its benefits for hydration and barrier function. Together with hyaluronic acid, they're what you'll feel first.

09The butters and oils

Plant butters and oils supply lipids similar to those in the skin's own barrier, and a thin layer slows water loss. A 2017 review of plant oils and butters applied to skin (Lin, Zhong and Santiago) describes barrier-supporting and softening properties for shea and several oils, avocado among them. It's a review of small studies, not a trial of our formula.

10Berry and flower extracts

The cream contains organic lingonberry, black currant, echinacea and elder flower extracts, all rich in antioxidants, and small amounts of vitamin C (ascorbyl palmitate) and vitamin E (tocopherol) that help keep the formula fresh. We found no human trials of these extracts in a day cream, so we make no claims for them beyond antioxidant support.

11Aloe, the base

Aloe leaf juice is the first ingredient, so it's the largest single part of the formula; it replaces plain water as the base. In a two-week study of 20 women (Dal'Belo et al., 2006), creams containing freeze-dried aloe raised the water content of the skin's outer layer. It was a small forearm study and says nothing about lines.

12The radiant finish

The cream contains mica, titanium dioxide (CI 77891) and tin oxide. Together they reflect light and give skin a soft, radiant finish straight after application. That glow is real and pleasant, and it's optical: light bouncing off pigments on the surface. It isn't a change in the skin itself, and titanium dioxide at this level isn't sun protection.

13Why SPF still matters

Daily sun exposure is the biggest external driver of visible skin ageing. This cream contains no sunscreen, so finish every morning with SPF 30 or higher. It will do more for fine lines over the years than any cream.

A broad-spectrum sunscreen protects against both UVB, which causes sunburn, and UVA, which penetrates deeper and drives much of the visible ageing people notice over time, including on cloudy days and through windows. Apply it as the last step, after the day cream has settled, and reapply if you spend long periods outdoors.

14How skin loses water

Water moves constantly from the deeper, wetter layers of the skin out through the surface and into the air. Dermatologists call this transepidermal water loss. A healthy barrier slows it down; a weakened or dry barrier lets it speed up, and skin feels tight, rough and dull.

Heating in winter, air conditioning in summer, hot showers, harsh cleansers and simply getting older all increase water loss. That's why a cream that feels fine in September can feel inadequate by December. The answer isn't to use more cream; it's to use one that both adds water and slows its escape.

15Adjusting your day cream through the year

If your skin is very dry, adding a face oil on top in the evening can help; face oil or moisturiser? explains how the two work together.

16Wearing it under makeup

Pilling, when products roll into little balls on the skin, usually happens when layers are applied too quickly or too thickly. Use a pea-sized amount of day cream, spread it thinly, and give it a minute or two to settle before sunscreen. Then give sunscreen a few minutes before foundation. The cream's velvety texture and soft-focus pigments are designed to sit well under makeup, but no cream will behave if it's layered on wet skin in a hurry.

17Common day cream myths

18What 'anti-age' means on a label

In the EU, cosmetics can't claim to treat, heal or change the structure of skin; that's the territory of medicines. So 'anti-age' on a cream means it's designed to improve the look and feel of ageing skin: hydration, smoothness, comfort and radiance. That's exactly what a good day cream does, and it's why we describe results as how skin looks and feels, not as changes inside it.

Be wary of creams that promise to 'repair collagen', 'reverse ageing' or 'erase wrinkles'. They're either overstating the evidence or stepping outside what a cosmetic can claim.

19What to expect, week by week

These are typical timelines for a hydrating day cream, not results from testing on our formula, which doesn't have consumer testing yet.

20Pairing it with a night cream

Day and night creams are built for different conditions. By day, skin needs a texture that sits well under sunscreen and makeup and keeps it comfortable through changing air. By night, there's no makeup or sun, so a richer cream can do more cushioning. Our Collagen Anti-Age Night Cream uses cocoa and shea butter for exactly that. You don't need both, but on dry or mature skin the pair covers the full day. Day cream or night cream? explains when one is enough.

21For men, and after shaving

The formula is unisex. Its velvety texture and lack of heavy shine suit anyone, and it can go on after shaving once any sting has passed. The soft radiant finish is subtle on every skin tone.

22The airless bottle

The cream comes in an airless pump bottle. Instead of a dip tube, a disc rises as you use the cream, so air and fingers stay out and the formula stays fresher. Store it away from direct sunlight and use it within the period after opening on the pack.

23How to use it

Our Peptide Anti-Ageing Serum goes underneath; the two come together as the Anti-Ageing Performance Duo. In the evening, switch to our richer Collagen Anti-Age Night Cream. A 50 ml bottle lasts around two months used every morning.

24Who it suits

It suits you if your skin is mature or dry and feels tight by midday; you want a cream that sits well under makeup; or you like a soft, radiant finish. Skip it, or check first, if you need fragrance-free; you want a certified natural or organic cream (its certification hasn't been stated to us); or you want sun protection in the same product.

25What it adds up to

This is a well-balanced day cream built on the evidence that matters most for a day cream: hydration. Two sizes of hyaluronic acid, glycerin and betaine draw water in; shea, avocado and jojoba help keep it there. The radiant finish is optical, and we've said so. If you want a comfortable, elegant cream to wear under SPF every morning, this is the one we'd point you to.

If you're new to it, use it on its own for a week before adding a serum underneath, and always finish with sunscreen. Most people notice the comfort on the first morning; the smoother look builds over the following weeks as skin stays better hydrated day after day.

26A note on fragrance

The cream is scented with Parfum, a melissa scent with a soft floral note, and declares four fragrance allergens on the label: Benzyl Salicylate, Limonene, Citral and Linalool. Most people use scented skincare without any problem, but fragrance is one of the more common causes of skin reactions. If your skin is sensitive, patch test on your inner forearm once a day for five days before using it on your face, and choose a fragrance-free cream if you know fragrance disagrees with you.

27Your questions, answered

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