Joybuy Insights

Serum for blemish-prone skin 2026: how to choose the right formula for spots, pores and marks

A serum for blemish-prone skin can be a valuable addition to your routine, but not every product suits every complexion. Oily skin often has different needs from sensitive or dehydrated skin. What’s more, terms such as “pore-refining”, “clarifying” and “brightening” are not always used consistently.

That’s why the Joybuy Product Recommendation Officer helps you choose based on verifiable information: ingredients, concentration, texture, volume and usage instructions. This helps you avoid buying several serums at once without knowing which product best matches your skincare goal.

Three common buying mistakes

1. Mistaking a high concentration for a better choice

A niacinamide serum with 10% or 15% may sound appealing, but a higher concentration is not automatically suitable for every skin type. On sensitive skin, a potent formula may feel uncomfortable more quickly. Ideally, start with one active ingredient and use it according to the product instructions.

2. Taking “minimises pores” literally

Pores do not disappear because of a serum. Product descriptions generally refer to reducing the appearance of pores or making the skin’s texture look smoother. Focus on the actual ingredients rather than relying solely on the label “pore-refining serum”.

3. Combining too many active products

A BHA serum for blackheads, an AHA exfoliant and an azelaic acid serum may all sound appealing, but do not introduce them into the same routine straight away. That makes it difficult to determine which product your skin tolerates well. Introduce one new serum at a time and stop using it if irritation persists.

Key points when comparing a serum for blemish-prone skin

1. Look at the active ingredient

Choose the ingredient according to your primary skincare goal:

  • Niacinamide: often used for a shiny complexion, uneven skin tone and visible pores. Products in this selection contain, for example, 10% or 15% niacinamide.
  • Azelaic acid: a widely used ingredient in routines for blemish-prone skin and visible redness. According to the product information, the SKIN1004 and ANUA formulas mentioned contain 10% azelaic acid.
  • BHA, such as salicylic acid: suitable for those looking to target blackheads and a congested T-zone. The BHA Blackhead Power Liquid lists salicylic acid in its formula.
  • AHA, such as glycolic acid: according to the product description, focuses on exfoliating the skin’s surface and creating a smoother texture.
  • Centella asiatica and hydrating ingredients: ingredients such as glycerine, panthenol and hyaluronic acid feature in several serums designed for sensitive or dehydrated skin.

Please note: claims about efficacy are based on the product description or information provided by the brand. They are not a guarantee of the same results for every user.

2. Check the texture and size

A lightweight lotion or watery ampoule can feel comfortable on oily or combination skin. A hydrating serum containing glycerine, panthenol or hyaluronic acid may be the more logical choice when your skin feels tight after cleansing.

The volume can vary considerably:

  • 9 ml and 15 ml are convenient sizes for trying out a formula first.
  • 30 ml is a standard size for everyday use.
  • 50 ml or 100 ml may offer better value for regular use, but only if the product genuinely suits your routine.

3. Check warnings and recommended frequency of use

Always check the ingredients list and warnings on the packaging. When trying a new formula, first perform a small patch test on a limited area of skin. Products containing acids, azelaic acid or spicule-like textures may, according to the product information, cause a tingling or warming sensation at first.

Use sun protection during the day if this is recommended in the usage instructions. A serum is generally applied after cleansing and, if desired, toner, followed by moisturiser.

Recommended choices by skincare goal

MATCH FOR: Budget-conscious beginners
The Ordinary Balancing & Clarifying Serum 30ml

The Ordinary Balancing & Clarifying Serum 30ml

Why it’s a good fit: A practical choice for anyone looking for one serum to address shine, uneven texture and visible blemishes.

Avoids the pitfall

The product information describes a multi-active formula and gives clear guidance to apply a few drops to clean, dry skin.

Key benefit

30 ml volume, vegan according to the product specification and suitable for all skin types according to the information provided.

MATCH FOR: K-beauty enthusiasts
SKIN1004 Madagascar Centella Pore-Minizing Fresh Ampoule 100ml

SKIN1004 Madagascar Centella Pore-Minizing Fresh Ampoule 100ml

Why it’s a good fit: According to the product description, this lightweight ampoule is designed for combination, oily and sensitive skin.

Avoids the pitfall

The formula lists multiple hydrating ingredients, so its “pore care” positioning is not based solely on a drying effect.

Key benefit

The ingredients list includes Centella asiatica, glycerine, panthenol and several forms of hyaluronic acid.

MATCH FOR: Targeted care for marks and redness
SKIN1004 Azelaic Acid 10% Ampoule

SKIN1004 Azelaic Acid 10% Ampoule

Why it’s a good fit: An appealing option if you want to combine a blemish serum with care for visible marks and an uneven complexion.

Avoids the pitfall

According to the product information, the formula is niacinamide-free—useful for anyone who deliberately wants to avoid this ingredient.

Key benefit

Contains 10% azelaic acid and Centella asiatica; the instructions recommend introducing it gradually, using it every other day.

MATCH FOR: Intensive blackhead care
COSRX BHA Blackhead Power Liquid 50ml

BHA Blackhead Power Liquid 50ml

Why it’s a good fit: A targeted option for the nose, T-zone and other areas where blackheads and excess sebum are visible.

Avoids the pitfall

The product description identifies a specific key ingredient—salicylic acid—instead of making only a broad claim about “clean pores”.

Key benefit

50 ml volume and glycerine in the listed formula. Use according to the instructions and avoid the eye area.

Looking for more options?

Explore a current selection of serums for different skin types, ingredients and skincare goals.

How to use a blemish serum

A simple routine helps prevent overloading your skin:

  1. Cleanse your face with a gentle cleanser.
  2. Apply one serum to dry or slightly damp skin, depending on the usage instructions.
  3. Follow with a moisturising cream.
  4. Add sun protection in the morning when this is recommended for the product.
  5. Gradually introduce exfoliating serums or an azelaic acid serum.

Do not introduce several new products at the same time. This makes it easier to see how your skin responds and helps prevent unnecessary purchases.

Frequently asked questions

Which serum is suitable for acne-prone skin?

That depends on your primary goal. For blackheads, many users look to BHA. For visible marks or redness, formulas containing azelaic acid, niacinamide or tranexamic acid are often considered. Always check the complete ingredients list and usage instructions.

Can I combine a niacinamide serum with azelaic acid?

This can work in some routines, but it is best to begin with one product. According to the product information, the SKIN1004 Azelaic Acid 10% Ampoule is niacinamide-free. This makes it a straightforward choice for anyone who does not want to combine both ingredients straight away.

How long does a serum last?

That depends on the volume and how many drops you use. With daily use, a 30 ml bottle will generally last longer than a 9 or 15 ml miniature. Check the expiry information and the period after opening on the packaging. Stop using the product if its scent, colour or texture changes noticeably.