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Choosing a Face Serum: How to Find a Formula That Suits Your Skin

A face serum can complement your routine with targeted ingredients, but the choice isn’t always straightforward. A hydrating serum, vitamin C serum, niacinamide serum or Korean serum can feel very different and come with different usage advice.

Many shoppers focus on words like “glow”, “lifting” or “deep hydration”. On their own, these terms tell you very little about the formula. So start by looking at the ingredients list, concentration, packaging and usage instructions. That way, you can avoid spending money on a serum that doesn’t suit your skin type or daily routine.

Three Common Pitfalls with Face Serums

1. Mistaking a Long Ingredients List for a Stronger Formula

A product with dozens of ingredients isn’t automatically better. For dry skin, humectants such as glycerine, hyaluronic acid, panthenol and beta-glucan can be relevant. If you want to tackle pigmentation, look for ingredients like niacinamide, alpha-arbutin, tranexamic acid or vitamin C derivatives.

The position of an ingredient on the list often gives you more context than a bold claim on the front of the bottle. A percentage is helpful if the brand clearly states it, but it still doesn’t tell you how your own skin will react.

2. Using Too Many Active Ingredients at Once

Combining a serum for pigmentation with a retinoid, exfoliant and vitamin C serum can make your routine unnecessarily complicated. Especially for sensitive skin, it’s wiser to add one new active product at a time.

Build up usage gradually and always follow the instructions on the packaging. Stop if you experience persistent redness, itching, a burning sensation or swelling, and seek advice from a doctor if needed.

3. Forgetting Sun Protection

Some formulas contain retinal, retinol, acids or vitamin C ingredients. According to the product information from the relevant brands, this may mean extra attention to sun protection is needed. Use a suitable sunscreen during the day and follow the specific advice on the packaging. A serum does not replace sunscreen.

What to Look for When Buying

Ingredients Matched to Your Skin Goal

First, choose one main goal:

  • Dry or tight-feeling skin: a hyaluronic acid serum, beta-glucan serum or formula with glycerine and ceramides.
  • Dull complexion: a vitamin C serum, niacinamide serum or formula with rice water and alpha-arbutin.
  • Pigmentation and uneven skin tone: look for niacinamide, tranexamic acid, alpha-arbutin or vitamin C derivatives. Don’t expect immediate change; cosmetic results vary from person to person.
  • Fine lines and loss of elasticity: a peptide serum, bakuchiol formula or retinal product could be of interest. Only use retinal and retinol according to the safety instructions.
  • Redness or sensitive skin: choose a simple, fragrance-free formula with panthenol, beta-glucan, ceramides or centella if possible. Test a small amount first.
  • Blemishes: a serum for acne is not a medicine. Ingredients such as niacinamide, salicylic acid or azelaic acid are used in cosmetics for skin prone to blemishes, but suitability varies from person to person.

Concentration and Tolerance

A higher concentration sounds appealing, but it isn’t always practical for daily use. For example, the ANUA serum contains 10% niacinamide and 4% tranexamic acid, while the celimax product states 0.1% retinal and 3% Matrixyl 3000. Such specifications help with comparison, but they don’t mean one formula works for everyone.

With active ingredients, start with a small amount and a low frequency of use. Don’t combine several strong products in the same routine straight away.

Texture, Volume and Shelf Life

A watery serum usually absorbs quickly and sits well under a day cream. A richer formula can be more comfortable for dry skin, but may pill under make-up. Also check the volume: a bottle of 15, 20, 30, 50 or 100 ml affects the price per use.

Check the expiry date and the period after opening on the packaging. Store the product according to the instructions, usually in a cool, dry place away from direct sunlight. Close a dropper or pump bottle properly to limit contamination.

Our Recommendations by Skin Need

Suitable for: Budget-conscious beginners
Embryolisse Hydra Serum 30 ml

Embryolisse Hydra Serum 30 ml

Why it fits this profile: A straightforward choice for anyone who mainly wants extra hydration without combining multiple active goals at once. The light texture is designed for daily use.

How this product avoids the pitfall

The product information states a simple main goal: hydration. This means you don’t have to pay for an extensive combination of strong active ingredients.

Key benefit & highlights

30 ml; contains glycerine, sodium hyaluronate and white water lily extract; according to the product information, alcohol-free and non-comedogenic.

Suitable for: Shoppers seeking top quality
iUNIK Beta-Glucan Power Moisture Serum

iUNIK Beta-Glucan Power Moisture Serum, 50 ml

Why it fits this profile: Ideal for anyone who wants a Korean serum with a clear focus on moisture and prefers a larger volume for regular use.

How this product avoids the pitfall

The product description focuses on beta-glucan as the central ingredient, rather than a long list of different treatment goals.

Key benefit & highlights

50 ml; according to the product information, formulated with 100% beta-glucan; designed for hydration and a comfortable skin feel.

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

celimax THE VITA-A RETINAL SHOT TIGHTENING BOOSTER 15ml

Why it fits this profile: For users who want to add a targeted retinal product to their evening routine and are prepared to follow the build-up instructions carefully.

How this product avoids the pitfall

The packaging clearly states 0.1% retinal, evening use and a build-up of every other night. This makes the application clearer than a general anti-ageing claim.

Key benefit & highlights

15 ml; according to the product description, contains 0.1% retinal and 3% Matrixyl 3000; use every other night and apply sun protection during the day.

Suitable for: Skin with visible discolouration
ANUA NIACINAMIDE 10% + TXA 4% SERUM 30ml

ANUA NIACINAMIDE 10% + TXA 4% SERUM 30ml

Why it fits this profile: Interesting for anyone looking for a serum for pigmentation with well-known ingredients for uneven skin tone and light hydration.

How this product avoids the pitfall

The product details explicitly state the concentrations of niacinamide and tranexamic acid. This allows you to compare the formula directly, without relying solely on “glow”.

Key benefit & highlights

30 ml; 10% niacinamide and 4% tranexamic acid according to the product description; also contains alpha-arbutin and multiple forms of hyaluronic acid.

Looking for more options?

We’ve put together a full, up-to-date list of products that fully meet these strict selection criteria and comply with current European safety regulations.

How to Add a Serum to Your Routine

  1. Cleanse your face and use toner if desired.
  2. Apply one to a few drops of serum, depending on the product instructions.
  3. Follow with a moisturiser to lock in hydration.
  4. Apply sunscreen during the day if the formula or your skin routine calls for it.
  5. Introduce new active ingredients gradually and, if you have sensitive skin, test on a small area first.

A serum doesn’t necessarily need to be used daily. For retinal, celimax advises starting every other night, according to the product information. With a simple hydrating formula, daily use may be more logical, as long as your skin tolerates it well.

Frequently Asked Questions About Face Serums

When do you apply a face serum?

You usually use a serum after cleansing and toning, if you use toner, and before your moisturiser. The exact order can vary by formula, so check the label. A product with retinal is intended for evening use, according to the product information provided.

How long does a bottle of face serum last?

That depends on the volume and the amount used per application. A 30 ml bottle often lasts longer when using a few drops each time than a product where you use a full pipette. Keep the serum tightly closed and follow the shelf-life information on the packaging.

Which serum is suitable for sensitive skin?

Look for a short, fragrance-free formula with ingredients such as glycerine, panthenol, beta-glucan, centella or ceramides. Even products that the brand or product information says are suitable for sensitive skin can still cause irritation. So introduce one product at a time and stop if you experience any problems.