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Choosing a face serum: practical guide to ingredients, skin type and use

A face serum can be a useful step between cleansing and moisturising, but choosing one is not always straightforward. Products are often promoted with terms such as “glow”, “lifting”, “collagen boost” and “anti-ageing”. These words do not automatically tell you what a formula will do for your skin.

That is why you should pay particular attention to the ingredients list, instructions for use and the properties actually stated for the product. This will help you avoid buying an expensive serum that does not suit your skin type or daily routine.

Three common pitfalls when buying face serum

1. Mistaking a higher percentage for a better choice

A niacinamide serum with 10% niacinamide sounds appealing, but a higher concentration is not necessarily more comfortable for everyone. For sensitive or easily irritated skin, a formula containing several active ingredients may be less suitable. Also look at other ingredients, such as tranexamic acid, retinol, fragrance or alcohol.

2. Reading marketing claims as guaranteed results

Words such as “stimulates collagen”, “reduces wrinkles” or “repairs the skin” are often based on information provided by the brand. According to Estée Lauder’s own research, for example, users reported improvements in smoothness and appearance when using the Perfectionist Pro formula. This is brand information, not a guarantee for your skin.

It is therefore better to use the product description as an indication of the formula and its intended use. According to the product information, an anti-wrinkle serum may help reduce the appearance of fine lines, but it is not a substitute for medical treatment.

3. Ignoring texture and how it works with other products

A rich serum can feel pleasant on dry or mature skin, but may be less comfortable under make-up. A lightweight hydrating serum is often a better fit for combination or oily skin. Also check whether you are already using other active products. Using multiple exfoliants, retinol products or highly concentrated serums in one routine can place unnecessary stress on the skin.

Which specifications should you check?

1. Ingredients suited to your goal

Choose based on your main skin concern:

  • Hydration: look for glycerine, hyaluronic acid, sodium hyaluronate, panthenol and betaine. A hydrating serum mainly helps the skin feel more comfortable and supple.
  • A more even complexion: niacinamide and tranexamic acid are found in formulas which, according to the product description, are designed to make discolouration less visible. An anti-pigmentation serum should always be combined with daily sun protection.
  • Firmness and fine lines: peptide serum formulas sometimes contain several peptides, such as copper tripeptide-1, acetyl hexapeptide-8 or palmitoyl peptides. The benefits brands attribute to these ingredients should be viewed as product claims, not established results.
  • Care for mature skin: as well as active ingredients, consider the texture, hydration and tolerance. A firming serum is only practical if you can use it consistently.

A collagen serum, for example, contains collagen components in its formula. This does not automatically mean that the product demonstrably increases the body’s own collagen production. Check the ingredients list and the specific usage information.

2. Skin type, fragrance and active ingredients

For a serum for all skin types, “all skin types” is a product description, not a guarantee that everyone will tolerate it without problems. If you have sensitive skin, pay particular attention to:

  • fragrance and perfuming agents;
  • alcohol denat.;
  • retinol;
  • exfoliating acids;
  • spicule- or microneedle-like textures;
  • a long list of active ingredients.

A fragrance-free product may be a logical choice if you prefer to avoid perfuming agents. However, always check the current packaging, as the formulation may change.

3. Size and frequency of use

The sizes in this selection range from 20 to 150 ml. A smaller bottle is useful for trying a formula first, while a larger pack may offer better value per millilitre if the product fits well into your routine.

Follow the instructions on the packaging. With a concentrated serum, you may wish to start by using it less frequently. For retinol, MEDICUBE’s product information also recommends daily sun protection and caution when exposed to the sun. Carry out a patch test before using a new product and stop if irritation persists.

Our recommendations by user profile

Suitable for: Shoppers looking for premium quality
Estée Lauder Advanced Night Repair Serum 30 ml

Estée Lauder Advanced Night Repair Serum Synchronized Multi-Recovery Complex 30ml

Why it suits this profile: Suitable for anyone looking for a fragrance-free, oil-free formula intended for all skin types according to the product information.

How this product avoids the pitfall

The key features are clearly stated: 30 ml, oil-free, fragrance-free and dermatologically tested according to the product details.

Key benefit & highlights

Hyaluronic acid, bifida ferment lysate, 30 ml and usage advice for morning and evening.

Suitable for: Targeted use & intensive users
SKIN1004 Madagascar Centella Matrixyl 10 Boosting Shot Ampoule 9ml

SKIN1004 Madagascar Centella Matrixyl 10 Boosting Shot Ampoule 9ml

Why it suits this profile: For users who deliberately want to build a concentrated Korean skincare serum routine featuring a spicule texture.

How this product avoids the pitfall

The instructions recommend an adjustment phase of two to three times a week. They also warn of temporary tingling or redness.

Key benefit & highlights

9 ml; Matrixyl peptides, hyaluronic acid, panthenol and Centella Asiatica; gradual introduction is explicitly described.

Suitable for: Complexion-focused routines
ANUA NIACINAMIDE 10% TXA 4% SERUM 30ml

ANUA NIACINAMIDE 10% + TXA 4% SERUM 30ml

Why it suits this profile: A logical option for anyone whose main aim is to address an uneven complexion or visible discolouration as part of their routine.

How this product avoids the pitfall

The percentages of niacinamide and tranexamic acid are clearly stated for the product. According to the product details, the formula is also fragrance-free and alcohol-free.

Key benefit & highlights

10% niacinamide; 4% tranexamic acid; hyaluronic acid; 30 ml; described in the product details as suitable for normal skin.

Looking for more options?

We have 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 remove make-up.
  2. Apply toner if it is part of your routine.
  3. Apply a small amount of serum to dry or slightly damp skin, depending on the product instructions.
  4. Finish with a moisturiser.
  5. Use sun protection during the day, especially with products containing retinol or as part of a routine for pigmentation.

When introducing a new anti-ageing serum or peptide serum, start with one active product at a time. This makes it easier to see how your skin reacts and prevents you from introducing several potential sources of irritation at once.

Frequently asked questions about face serum

When should you apply face serum?

You will usually apply a serum after cleansing and before moisturiser. Some products are intended for morning and evening use, while others are mainly for evening use. Follow the instructions on the packaging.

How long does a bottle of serum last?

This depends on the size, dosage and frequency of use. A 30 ml bottle can last from several weeks to several months when used daily. Do not automatically use more: applying a larger amount will not necessarily produce better results.

Can you combine multiple serums?

Sometimes, but keep your routine manageable. For example, you could combine a hydrating serum with a simple moisturiser. Be more cautious when combining retinol, exfoliating acids and high concentrations of niacinamide. Introduce new combinations gradually and stop if irritation occurs.