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Pillar Guide · Serum Formulation

Azelaic acid serum — an OEM formulation guide

By Yanse CosmeticsUpdated June 20268 min read

Azelaic acid has quietly become one of the most-requested serum actives in skincare — gentle enough for sensitive skin, effective on marks, redness and tone, and a natural fit for oily and acne-prone routines. This guide covers what it does, the formula brands actually win with, and how to brief a manufacturer to get it right.

Yanse cosmetics cleanroom — serum compounding and fillingInside our factory
Our 100,000-class cleanroom. The same controlled environment behind our oil-control and patch lines carries into serum compounding and filling.

Why azelaic acid, and why now

Demand for azelaic serums has climbed sharply — driven by K-beauty hero products and a wider move toward gentle, multitasking actives rather than harsh exfoliation. It speaks directly to the concerns oily and acne-prone users care about after a breakout: leftover marks, lingering redness and uneven tone. Because it is well tolerated, it broadens an acne range beyond strong acids without alienating sensitive skin.

What azelaic acid does

Azelaic acid works on the surface to even out post-blemish marks and visible redness, supports a clearer and more uniform tone over time, and helps keep skin looking less congested. It is non-stripping and slow-and-steady rather than aggressive — which is exactly why it pairs so well with oily skin that can't tolerate constant harsh treatment.

The formula brands win with

Looking across the best-selling azelaic serums, a clear pattern emerges. The proven core is 10% azelaic acid + niacinamide + hyaluronic acid in a lightweight, non-greasy base. From there, the supporting cast is tuned to the audience:

LayerWhat to specifyWhy
Hero activeAzelaic acid ~10% (up to 14–16% for a strong tier)Marks, redness, tone — the core promise
Tone partnerNiacinamideBrightening, oil balance, barrier support — near-universal pairing
Comfort partnerHyaluronic acid / panthenolHydration and cushion so the active is tolerated
Oily/acne add-onTea tree, low-dose BHA, zincExtra oil and blemish support for acne-led ranges
Base & feelLightweight, fast-absorbing, non-comedogenicTexture is what users review — it must feel weightless
Formulation note

Azelaic acid is concentration- and base-sensitive: it can feel gritty or destabilise in a poorly built vehicle. The base, solubilisation and buffering matter as much as the percentage on the label — a well-built 10% serum can out-perform a rough 16% one.

Strength tiers to offer

  • Gentle / everyday (≈5–10%) — sensitive and first-time users; lead with comfort and "redness relief".
  • Standard (10%) — the volume tier; the broadest oily/acne audience.
  • Strong (14–16%) — experienced users wanting faster results on marks; pair with more soothing support.

Three positioning angles (and where they rank)

Azelaic suits several audiences — and each maps to its own search demand and landing page. Pick the one that fits your brand, or carry a small range:

If you are still weighing actives for an acne range, the salicylic vs azelaic comparison explains where each fits.

Yanse converting and production lineInside our factory
Our production line. Twenty years of oil-control and acne manufacturing — now extending into serums for oily and acne-prone skin, under one audited roof.

Making it as an OEM / ODM

A specialist manufacturer can take you from a brief to a finished azelaic serum: choose the strength tier and base, pair the supporting actives, solubilise and buffer it properly, run stability and trial batches, then scale into your packaging. Because azelaic skin concerns overlap with oil and acne — our core for 20 years — it sits naturally within our acne-care range. Tell us your audience and target market and we'll propose a formula and send samples.

Develop your azelaic serum

Tell us your audience, strength tier and pack — we'll propose a 10% azelaic formula tuned for oily, acne-prone or sensitive skin, and return samples with a 24-hour quote.

Request free samples →

Free sample set · 24-hour quote · 妆字号 + ISO 22716 · gentle-to-strong tiers

Educational content for brand and product teams. Ingredient and claim information is general and varies by market regulation; finished-product claims and permitted concentrations should be confirmed against the rules of your target market. Yanse Cosmetics is a contract manufacturer (OEM/ODM) and does not sell finished consumer goods under its own brand.

Frequently asked questions

What does azelaic acid serum do?

Azelaic acid helps even out post-blemish marks, calm visible redness and refine an uneven tone, while gently supporting clearer-looking, less congested skin. It is well tolerated, which is why it suits oily and sensitive skin alike.

What is the best azelaic acid serum formula for a brand to launch?

The most proven structure is 10% azelaic acid paired with niacinamide and hyaluronic acid in a lightweight, non-comedogenic base. For oily and acne-prone audiences, supporting actives such as tea tree or a low-dose BHA can be added; for sensitive skin, panthenol and a soothing complex.

What percentage of azelaic acid is used in a serum?

Leave-on cosmetic serums commonly use around 10%, with some ranges going to 14–16% for a stronger tier. The right level depends on base, buffering, target market regulation and how sensitive the audience is.

Is azelaic acid serum good for oily and acne-prone skin?

Yes. Azelaic acid is gentle, non-stripping and works on marks and redness left behind by breakouts, which makes it a strong fit for oily and acne-prone routines — especially in a non-comedogenic, lightweight serum.

Can an OEM manufacturer make a custom azelaic acid serum?

Yes. A specialist OEM/ODM manufacturer can formulate azelaic serums at different strength tiers, choose the base and texture, pair supporting actives, run stability and trial batches, and scale with your packaging and brand.