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

A face serum may seem simple: apply a few drops after cleansing, followed by a cream. Yet many people buy a product that does not suit their skin type, contains too many active ingredients or ends up sitting unused in the bathroom after a few weeks. The right choice therefore starts not with an eye-catching promise on the packaging, but with your skin’s needs, the ingredients list and the instructions for use.

Common pitfalls when choosing a face serum

1. Mistaking a long ingredients list for a better formula

A serum containing lots of active ingredients is not automatically suitable for daily use. Retinol, retinal, acids and azelaic acid can cause irritation for some users. So check where an ingredient appears in the INCI list, as well as the warnings and recommended introduction schedule for the product.

A retinol serum or retinal serum often needs to be introduced gradually. If you use several powerful products at the same time, it becomes harder to determine what is causing redness, dryness or a tight feeling.

2. Treating marketing claims as guaranteed results

Terms such as “anti-ageing”, “repairing” or “radiant skin” often describe the aim of a formula, but do not guarantee the same results for every skin type. According to a brand’s own research or product information, certain ingredients may contribute to the stated appearance; this should not be confused with a medically proven effect.

Pay particular attention to verifiable information:

  • the full ingredients list;
  • contents, for example 15 ml, 30 ml, 40 ml or 50 ml;
  • frequency of use;
  • warnings about sun sensitivity;
  • shelf life and the period after opening, such as 6M.

3. Confusing hydration with an oily texture

A hydrating serum does not have to feel greasy. Hyaluronic acid, glycerine, panthenol and betaine are often used in water-based formulas. An oil- or silicone-based serum may help create a smoother feel, but it serves a different purpose from a lightweight serum for dehydrated skin.

Key points to check

Start by identifying your primary skin concern

  • Dry or dehydrated skin: look for glycerine, hyaluronic acid, panthenol, ceramides and other moisture-binding ingredients. A hyaluronic acid serum is a practical choice if you are looking for a lightweight layer to apply under a moisturiser.
  • Sensitive or reactive skin: preferably choose a short, straightforward routine. A serum for sensitive skin containing ingredients such as centella, panthenol, allantoin or beta-glucan may be suitable. Test it on a small area of skin first.
  • Redness: a serum for redness may contain ingredients such as centella asiatica, azelaic acid, liquorice root or soothing plant extracts. Avoid using it on open or damaged skin.
  • Fine lines and evening out the complexion: retinol, retinal, niacinamide and peptides are often found in a serum for fine lines. Introduce retinoids gradually and use sun protection during the day.
  • Mature skin: consider the texture, tolerance and additional ingredients such as ceramides, peptides or squalane. The term anti-ageing serum alone does not indicate how your skin will respond.

Check usage and shelf life

Apply a face serum after cleansing and, if desired, toner, before moisturiser. Do not introduce several new active products at once. Check the packaging for the expiry date and the open-jar symbol. Store the serum as directed, usually in a cool, dry place away from direct sunlight.

Retinol and retinal are usually used in the evening. Product information for retinol and retinal formulas generally recommends starting with a few applications per week. Sun protection during the day is important because these ingredients can increase sensitivity to the sun. During pregnancy or breastfeeding, follow the warning on the label and consult a healthcare professional if in doubt.

Product choices by user profile

Suitable for: Shoppers seeking premium quality
SKII SK-II GenOptics Aura Essence Serum 50ml

SKII SK-II GenOptics Aura Essence Serum - 50ml

Why it suits this profile: If you are looking for a concentrated formula and a larger size, this serum contains 50 ml, niacinamide and bisabolol, according to the brand’s product description.

How this product avoids the pitfall

The product page clearly states the variant, contents and intended use. However, always check the current packaging and complete INCI list.

Main benefit & advantages

50 ml contents; a lightweight texture that, according to the product information, can be applied under a moisturiser.

Suitable for: Targeted use & experienced users
celimax THE VITA-A RETINAL SHOT TIGHTENING BOOSTER 15ml

celimax THE VITA-A RETINAL SHOT TIGHTENING BOOSTER 15ml

Why it suits this profile: This retinal serum is intended for users who want to incorporate a vitamin A derivative into their evening routine and are prepared to build up usage gradually.

How this product avoids the pitfall

The instructions recommend starting with evening use and applying a small amount. This helps prevent over-application and introducing it too quickly.

Main benefit & advantages

15 ml contents; 0.1% retinal and 3% Matrixyl 3000 according to the product information.

Suitable for: Sensitive skin and redness
ANUA Azelaic Acid 10 Hyaluron Redness Soothing Serum 30ml

ANUA Azelaic Acid 10 Hyaluron Redness Soothing Serum 30ml

Why it suits this profile: According to the ingredients list, this formula combines 10% azelaic acid with panthenol, hyaluronic acid, centella and ceramide NP. This makes it suitable for a targeted routine focused on redness and hydration.

How this product avoids the pitfall

The instructions recommend starting with 1–2 drops once or twice a week. This allows you to assess your skin’s tolerance gradually.

Main benefit & advantages

30 ml contents; a combination of azelaic acid, panthenol, centella and hyaluronic acid.

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.

Face serum or hair serum?

A HAIR SERUM is not an alternative to a face serum. Hair serums are intended for the lengths and ends of the hair, not for facial skin. According to the product information, the ghd Dramatic Ending Smooth & Finish Hair Serum contains silicones and perfume allergens such as limonene and linalool. Apply the product to dry hair, avoid the roots and follow the warnings on the packaging.

The CP-1 Premium Silk Essence Ampoule is also intended for hair care. The formula contains keratin, collagen, elastin and conditioning agents, among other ingredients. So if your main aim is to reduce frizz or add shine, look for a hair serum rather than a facial skincare product.

Frequently asked questions about face serum

How do you use a face serum?

Cleanse your face, apply a few drops of serum and follow with a moisturiser. Use sun protection during the day when advised in the product information, particularly with retinol or retinal. Introduce one new product at a time.

How long does a serum last?

Check the expiry date and open-jar symbol on the packaging. A symbol such as 6M generally means that the product can be used for six months after opening, provided it is stored correctly. The packaging takes precedence.

Is a more expensive serum automatically more suitable?

No. The price does not determine whether the formula suits your skin. Compare the contents, ingredients, frequency of use, tolerance and shelf life. A simple hyaluronic acid serum may be a more logical choice for hydration than a complex anti-ageing serum containing several active ingredients.