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Choosing a face serum: how to find a formula that suits your skin

A face serum often contains a higher concentration of active ingredients than a standard cream. That may sound appealing, but an expensive serum is not automatically right for your skin. The best choice depends on your skin type, the result you want, the ingredients list and how easily the product fits into your routine.

Common pitfalls when choosing a face serum

1. Mistaking a long ingredients list for a better formula

A serum containing lots of active ingredients may look impressive, but several potent ingredients can leave your skin feeling uncomfortable. So don’t just look for terms such as “intensive”, “booster” or “glow”. Also check:

  • the concentration of key ingredients;
  • fragrance and essential oils;
  • any potentially exfoliating ingredients;
  • guidance on gradually building up use;
  • the product’s shelf life and storage instructions.

Brand names and product descriptions may suggest visible results. However, according to the brand’s own product information, these products are intended to provide cosmetic support for factors such as hydration, radiance or a firmer-looking complexion. Results may vary from person to person.

2. Choosing a serum based on a skin concern without checking the texture

A hydrating serum can feel comfortable on dry skin, but a rich formula may be less suitable if your skin becomes shiny easily or if you use several skincare layers. A lightweight ampoule or watery essence is often easier to combine with toner, moisturiser and sunscreen.

3. Using too many serums at once

Using a niacinamide serum, vitamin C serum, exfoliant and anti-ageing serum in one routine makes it difficult to tell what your skin tolerates well. Start with one product. With a concentrated formula, begin by using it two to three times a week, unless the label gives different instructions.

Which specifications are important?

1. Choose the active ingredient based on your goal

  • Hyaluronic acid: often used as a moisture-binding ingredient in a hyaluronic acid serum. Apply a moisturiser afterwards to help maintain the skin-conditioning feel for longer.
  • Niacinamide: found in products that, according to the product description, are designed to promote a more even appearance, refined skin texture and less visible pores.
  • Vitamin C: a vitamin C serum is suitable for a dull-looking complexion or uneven skin tone. Pure ascorbic acid may be more sensitive to light, heat and air.
  • Tranexamic acid and alpha-arbutin: used in serums for dark spots or brightening serums. Always use sunscreen during the day.
  • Peptides and collagen extracts: found in formulas designed to make the skin look firmer and smoother. This is not a medical effect and does not replace treatment.

2. Check the concentration and directions for use

A higher percentage is not automatically more comfortable or more suitable. For example, the SKIN1004 Matrixyl 10% Boosting Shot Ampoule lists 10% Matrixyl, hyaluronic acid and 5% Volufiline in its product information. As it also contains micro-spicules, the manufacturer recommends a patch test and gradually building up use.

The Medicube TXA NIACINAMIDE 15 SERUM description states that it contains 15% niacinamide and tranexamic acid. This makes it a targeted option for anyone primarily looking for a more even skin tone, but a patch test is still advisable if you have sensitive skin.

3. Pay attention to the packaging, size and shelf life

A pipette usually allows you to control the amount dispensed drop by drop, while a pump bottle can be hygienic and practical. Also compare the size: 7, 15, 20, 30, 50 or 100 ml makes a difference to how long the product lasts and the price per millilitre.

Store a vitamin C serum according to the packaging instructions, usually tightly closed and away from heat and direct sunlight. Check the current ingredients list and expiry information on the packaging for each product. Formulas may change.

Recommended choices by user profile

Suitable for: Budget-conscious beginners
SKIN1004 Centella Hydrating Brightening Glow Serum Ampoule 100ml

SKIN1004 Centella Hydrating Brightening Glow Serum Ampoule 100ml

Why it suits this profile: Its lightweight texture and 100 ml size make it a practical choice for daily hydration and a fresher-looking complexion.

How this product avoids the pitfall

The product information describes a fast-absorbing, lightweight formula. This makes it easier to avoid applying too many layers and keep your routine simple.

Key benefit & highlights

Contains niacinamide, tranexamic acid, centella and a vitamin C derivative; 100 ml and suitable for use under a moisturiser.

Suitable for: Shoppers looking for premium quality
Jeanne Piaubert REGENERATIVE Multi-Dimensional Redensifying Serum 30ml

Jeanne Piaubert REGENERATIVE Multi-Dimensional Redensifying Serum 30ml

Why it suits this profile: If you appreciate an essence texture and a pump bottle, this product offers day-and-night skincare with a more nourishing feel on the skin.

How this product avoids the pitfall

The specifications clearly state the texture, size and packaging. This helps you judge in advance whether the formula will fit into your routine.

Key benefit & highlights

30 ml, an essence texture, mango seed oil and jojoba oil in the ingredients list; designed to promote a smoother, firmer-looking skin surface according to the product description.

Suitable for: Targeted use & intensive users
Medicube TXA NIACINAMIDE 15 SERUM 30ml

Medicube TXA NIACINAMIDE 15 SERUM 30ml

Why it suits this profile: This targeted formula is suitable for users specifically looking for niacinamide and tranexamic acid to promote a more even-looking complexion.

How this product avoids the pitfall

The key percentage, 15% niacinamide, is included in the product name. This makes comparisons more transparent, although gradually building up use is still advisable.

Key benefit & highlights

30 ml; combination of 15% niacinamide and tranexamic acid; lightweight formula according to the product information.

Suitable for: Sensitive and dry skin
celimax Dual Barrier Boosting Serum

[celimax] Dual Barrier Boosting Serum

Why it suits this profile: According to the product information, this formula is intended for dry, sensitive skin and contains a ceramide complex.

How this product avoids the pitfall

The product description clearly identifies the skin type and intended use. This helps you choose a serum for sensitive skin based on more than just trend-led wording.

Key benefit & highlights

Contains five ceramides according to the product information; designed to hydrate and support the skin barrier; dermatologically tested according to the stated product specifications.

Looking for more options?

We’ve put together a complete, up-to-date list of products that fully meet these strict selection criteria and the applicable European safety regulations.

How to use a face serum in your routine

  1. Cleanse your face and gently pat the skin dry.
  2. Apply toner if you use one.
  3. Apply a few drops of serum to your face and neck, avoiding the eye area unless the product is specifically intended for it.
  4. Finish with a moisturiser.
  5. Use a broad-spectrum sunscreen during the day, especially when using a vitamin C serum, exfoliating ingredients or products for uneven skin tone.

Always carry out a patch test before using a new product. Stop using it if irritation persists and ask a doctor or pharmacist for advice if you are unsure. A cosmetic serum is not a medicine and does not treat a skin condition.

Frequently asked questions about face serums

How often should I use a serum?

That depends on the formula. A gentle hydrating serum can often be used daily. With high concentrations of niacinamide, vitamin C, acids or micro-spicules, it is wiser to start with a few applications per week. Always follow the instructions on the packaging.

Can I combine several serums?

You can, but keep your routine simple. For example, combine a hydrating serum with a moisturiser. It is best to use active formulas at different times and introduce only one new product at a time.

How long does a serum remain usable?

Check the expiry date and the period-after-opening symbol on the packaging. Store the product tightly closed, away from direct sunlight and according to the manufacturer’s instructions. A change in smell, colour or texture is a reason to stop using the product.