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

A face serum can be a useful step between cleansing and moisturising. But sometimes, you’re paying mainly for eye-catching claims on the packaging. Phrases such as “glass skin”, “deep repair” or “instant firming” say little on their own about the ingredients, concentration or suitability for your skin.

The key question, then, isn’t which serum makes the biggest promises, but which ingredients, texture and directions for use suit your skincare goals. Read on to find out what to look for in a Korean face serum, a hydrating serum or a formula for fine lines, redness or pigmentation.

Common pitfalls when choosing a face serum

1. Mistaking a long ingredients list for a powerful formula

A product with lots of ingredients isn’t automatically more effective. First, look for ingredients that suit your goal:

  • Hyaluronic acid, glycerine, panthenol and beta-glucan are often used in hydrating serums.
  • Peptides and adenosine are commonly found in peptide serums and anti-ageing serums.
  • Niacinamide, vitamin C and alpha-arbutin are used in formulas for dull or uneven-looking skin.
  • Azelaic acid and centella asiatica are popular choices in serums for redness or blemish-prone skin.

An ingredient appearing on the list doesn’t tell you how much of it is in the product. Check any claims about percentages and see whether the information matches the packaging.

2. Introducing active ingredients too quickly to sensitive skin

A serum for pigmentation, fine lines or redness may contain active ingredients that aren’t suitable for daily use by everyone. If you’re using a concentrated formula, start with a small amount and try using it every other evening, for example.

A patch test is a good idea, especially with a serum for sensitive skin. Stop using it if you experience persistent irritation, itching, swelling or a burning sensation. Cosmetics aren’t treatments for skin conditions; if your symptoms don’t go away, seek advice from a healthcare professional.

3. Mistaking hydration for a lasting result

A hydrating serum can temporarily leave your skin feeling more supple. That doesn’t necessarily mean that fine lines caused by dryness or pigmentation will disappear for good. According to a brand’s own research or claims, certain products may help reduce the appearance of fine lines or dullness, but these claims don’t guarantee results for every skin type.

Also consider what you apply after your face serum. A moisturiser helps support a water-based formula on the skin. During the day, use sun protection as part of a routine that includes retinol, vitamin C or exfoliating acids.

What to look for when buying a face serum

1. Match the ingredient to your skincare goal

Start by choosing one main concern. If you’re looking for a serum for dry skin, consider hyaluronic acid, beta-glucan, glycerine, ceramides and panthenol. For dull-looking skin, a brightening serum with vitamin C or alpha-arbutin could be an option.

A peptide serum is worth considering if you want to focus on skin that looks smoother and firmer. Brand product descriptions shouldn’t suggest that results are guaranteed. Check the exact formula and use the product consistently, following the directions.

2. Check the texture, size and packaging

A light gel or lotion often sits better under sun protection and make-up. A richer formula may feel more comfortable on dry skin, but could feel heavy on oily skin.

Check:

  • Net contents, for example 30, 50 or 150 ml.
  • The type of packaging: a pump bottle limits contact with air and fingers; a pipette needs to be used hygienically.
  • The shelf life and the period after opening, shown by the open-jar symbol.
  • Whether the full ingredients list is available on the packaging.

A large bottle is only good value if you use the formula regularly before its after-opening shelf life runs out.

3. Consider fragrance, alcohol and personal sensitivities

Fragrance isn’t a problem for everyone, but it may be something to consider if you have sensitive skin. Also check whether a product contains alcohol, essential oils or other ingredients that you’ve reacted badly to in the past.

Take extra care with products containing retinol or stronger acids. Follow the warnings on the packaging and use sun protection during the day. Cosmetics sold in Europe should include an ingredients list, details of the responsible party and safety information.

Our recommendations by user profile

Suitable for: Budget-conscious beginners
Beauty of Joseon Revive Serum Ginseng Snail Mucin 30 ml

Beauty of Joseon Revive Serum: Ginseng + Snail Mucin 30 ml

Why it suits this profile: Its gel texture and blend of ginseng, snail mucin, glycerine and hyaluronic acid make it a good fit for a simple routine for dry, normal or combination skin.

How this product avoids the pitfall

The product information clearly lists the ingredients, size and directions for use, so you don’t have to rely on a vague glow claim alone.

Key benefits and features

30 ml, pump bottle, gel texture and, according to the product details, alcohol-free, fragrance-free and vegan.

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

Torriden DIVE IN Low Molecule Hyaluronic Acid Serum 50 ml

Why it suits this profile: This Korean face serum is designed to provide hydration at multiple levels. It’s a good fit if you’re looking for a lightweight, fragrance-free formula for everyday use.

How this product avoids the pitfall

The ingredients list names five forms of hyaluronic acid, panthenol, ceramide NP and beta-glucan, giving you more to go on than a claim of “intensive hydration” alone.

Key benefits and features

50 ml, lightweight texture, fragrance-free and, according to the product information, vegan and suitable for sensitive skin.

Suitable for: Targeted use and experienced users
SKIN1004 Azelaic Acid 10% Ampoule

SKIN1004 Azelaic Acid 10% Ampoule

Why it suits this profile: A targeted option if you’re looking for a serum for redness, visible marks or uneven-looking skin tone, and are happy to introduce it gradually.

How this product avoids the pitfall

The directions recommend gradually increasing how often you use it. The formula is also niacinamide-free, which may be useful if you avoid this ingredient.

Key benefits and features

According to the product description, it contains 10% azelaic acid and centella asiatica; use sun protection during the day.

Suitable for: Skin that needs extra hydration
iUNIK Beta-Glucan Power Moisture Serum 50 ml

iUNIK Beta-Glucan Power Moisture Serum, 50 ml

Why it suits this profile: Its clear focus on beta-glucan makes it a natural choice for dry or dehydrated skin that mainly needs a hydrating serum.

How this product avoids the pitfall

You’re choosing based on a clear skincare goal, rather than combining several potent active ingredients at once.

Key benefits and features

50 ml and, according to the product description, designed to help retain moisture, support elasticity and leave skin feeling comfortable.

How to use a face serum

  1. Cleanse your face and use toner if you wish.
  2. Apply one to three drops or a small amount, depending on the product instructions.
  3. Avoid the eye area unless the product is specifically designed for it.
  4. Follow with a moisturiser.
  5. Use sun protection during the day if the formula contains active ingredients.

It’s best not to introduce several new active serums at the same time. That way, you’ll have a better idea of which product feels comfortable on your skin and whether a particular formula causes irritation.

Looking for more options?

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

Frequently asked questions about face serums

When should you apply face serum?

Use a face serum after cleansing and before your moisturiser. A water-based formula usually goes on before a richer cream. Always follow the specific directions on the packaging.

How long does face serum last?

Check the use-by date and open-jar symbol on the packaging. After opening, the quality may change due to exposure to air and light, or contamination. Store the serum in a cool, dry place, close the packaging properly and don’t apply it directly to your skin using the pipette.

Which serum is right for sensitive or dry skin?

For dry skin, look for hydrating ingredients such as glycerine, hyaluronic acid, panthenol, ceramides and beta-glucan. If you have sensitive skin, a short ingredients list without fragrance may be a practical choice. Introduce new products gradually and do a patch test first.