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

A face serum can be a targeted addition to your daily skincare routine. However, choosing the right product from dozens of bottles is not always straightforward. For example, a Korean face serum, facial ampoule or hydrating serum may have a lightweight gel texture, while another product contains active ingredients designed for oily or blemish-prone skin.

The product name does not tell you everything. Pay particular attention to the ingredients list, directions for use and suitability for your skin.

Three common face serum pitfalls

1. Mistaking a long ingredients list for a stronger formula

More ingredients do not automatically mean that a serum is better suited to your skin. A formula containing several active ingredients can also be more difficult to combine with other products. First, consider your main goal: hydration, soothing, a more even complexion or care for blemishes.

2. Treating performance claims as guaranteed results

Words such as “repairing”, “anti-ageing” or “pore-refining” often describe how a product is positioned. A brand’s own research may report certain results, but this is not a guarantee for every user. That is why, in this guide, we base our selection on verifiable information such as ingredients, volume, texture and directions for use.

3. Using an active serum too quickly or too often

A niacinamide serum, azelaic acid serum or product with a spicule texture may require a gradual introduction. Do not apply several new serums at the same time. First test a small amount on a limited area of skin and stop using it if irritation persists. Use sun protection during the day when this is required according to the product advice.

What should you look for when buying a face serum?

1. Choose ingredients based on your skin goal

  • Dry or dehydrated skin: look for glycerine, panthenol, ceramides and hyaluronic acid. According to the product description, a hyaluronic acid serum is primarily intended to help the skin retain moisture.
  • Sensitive or reactive skin: Centella Asiatica, also known as cica, is often found in serums for sensitive skin. Also check whether the product contains fragrance, alcohol or essential oils if you prefer to avoid them.
  • Oily or combination skin: a lightweight ampoule with a non-greasy texture may feel more comfortable. Ingredients such as niacinamide or azelaic acid are often chosen for skin with visible blemishes and an uneven complexion.
  • Dull skin: a brightening serum containing niacinamide, tranexamic acid or a vitamin C derivative may suit the skincare goals stated on the product packaging.
  • Signs of skin ageing: look for hydrating ingredients, adenosine or peptides. An anti-ageing serum can care for the skin, but cosmetic claims are not medical promises.

2. Check the texture and size

A watery ampoule usually absorbs quickly and is suitable for use beneath a moisturiser. A gel serum often feels lightweight, while a richer formula may be better suited to dry skin. Also check the net volume. A 9 or 20 ml bottle is handy for trying out a formula; 50 to 100 ml may offer better value for daily use.

3. Read the directions and warnings

A serum is usually applied after cleansing and, if required, toner, followed by a moisturiser. If you have sensitive skin, it is best to introduce it gradually. Avoid contact with the eyes and follow the instructions on the packaging. You can only reliably identify a vegan serum or cruelty-free product from information provided by the brand or seller, so always check the current packaging.

Our recommendations by user profile

The choices below are linked to specific skin needs and verifiable product details. They are not an overall ranking.

Suitable for: Budget-conscious beginners
SKIN1004 Madagascar Centella Ampoule 55 ml

SKIN1004 Madagascar Centella Ampoule 55 ml

Why it suits this profile: Its straightforward focus on Centella Asiatica and 55 ml volume make it an easy starting point for anyone looking for a lightweight Korean face serum.

How this product avoids the pitfall

The product description highlights a clear main function: hydrating and soothing the skin. This means you do not need to combine several active ingredients straight away.

Main benefit & highlights

55 ml volume; Centella Asiatica listed as the main ingredient; suitable for applying after cleansing.

Suitable for: Shoppers looking for premium quality
Torriden DIVE IN Low Molecule Hyaluronic Acid Serum 50ml

Torriden DIVE IN Low Molecule Hyaluronic Acid Serum 50ml

Why it suits this profile: According to the product information, this hydrating serum combines five types of hyaluronic acid with panthenol, ceramide NP and beta-glucan.

How this product avoids the pitfall

The product description states that it has a fragrance-free formula and lightweight texture. Check the current ingredients list on the packaging.

Main benefit & highlights

50 ml; five types of hyaluronic acid according to the product information; vegan and fragrance-free according to the stated product details.

Suitable for: Targeted use & intensive users
SKIN1004 Madagascar Centella Tea-Trica Relief Ampoule 100ml

SKIN1004 Madagascar Centella Tea-Trica Relief Ampoule 100ml

Why it suits this profile: According to the ingredients list, the formula focuses on tea tree water, Centella Asiatica and a lightweight texture for blemish-prone skin.

How this product avoids the pitfall

The directions are clear: apply to a cleansed face and spread evenly. Stop using it if irritation occurs, as stated on the packaging.

Main benefit & highlights

100 ml; tea tree water appears high on the stated ingredients list; product description mentions use for blemish-prone skin.

Suitable for: Skin with visible blemishes
SKIN1004 Azelaic Acid 10% Ampoule

SKIN1004 Azelaic Acid 10% Ampoule

Why it suits this profile: According to the product name, this serum contains 10% azelaic acid and is niacinamide-free. This may be relevant to users who want a targeted routine without niacinamide.

How this product avoids the pitfall

The advice recommends starting every other day during the first week. This helps prevent you from using an active ingredient too frequently straight away.

Main benefit & highlights

10% azelaic acid according to the product name; Centella Asiatica in the product description; 30 ml volume.

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 gently pat the skin dry.
  2. Apply toner if required.
  3. Use a few drops of serum on your face and neck.
  4. Gently pat the product into the skin and wait briefly before applying a cream.
  5. Apply sun protection during the day when this is appropriate according to the product advice.

Start with one new product. This makes it easier to assess how your skin reacts and helps you avoid unnecessary combinations.

Frequently asked questions about face serums

When should you apply a face serum?

Usually after cleansing and before applying a moisturiser. A watery formula can be used before a richer cream. When using active ingredients, always follow the instructions on the packaging.

How long does a serum last?

This depends on the volume and the number of drops used each time. A 30 ml bottle will generally last longer with daily use than a 9 ml sample size. Check the shelf-life information and the period after opening on the packaging.

How much does a good face serum cost?

The price depends on the brand, volume, ingredients and packaging. Compare the price per millilitre and check whether the formula suits your skin goal. A larger size is not automatically better value if you do not like using the product or do not use it regularly.