Why We Put Azelaic Acid in ClearBliss (and What It Does That Niacinamide Can't)
Posted on May 11 2026
Niacinamide is genuinely excellent. If someone asked us to recommend a single, universally well-tolerated, multi-functional skincare active that works for almost everyone, niacinamide would be near the top of the list. It strengthens the skin barrier, reduces melanin transfer, calms inflammation, minimises pore appearance, and regulates sebum — all without meaningful irritation risk and at a very accessible price point.
So why did we build ClearBliss around azelaic acid instead?
Because niacinamide, for all its strengths, cannot do several things that matter most for the skin type ClearBliss is designed to treat.
What Niacinamide Does — and Where It Stops
Niacinamide works primarily at the level of the skin barrier and melanosome transfer. It does not:
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Directly kill bacteria: Niacinamide has mild anti-inflammatory properties but does not have meaningful direct antibacterial activity against C. acnes, the bacteria that drives inflammatory acne. It addresses some of the downstream inflammation but not the microbial source.
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Penetrate into the follicle and regulate keratinisation: Niacinamide works primarily in the epidermis. It does not normalise the keratinisation process inside the follicle — the cellular abnormality that causes pores to block in the first place.
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Directly inhibit tyrosinase: Niacinamide reduces the transfer of melanin-containing organelles (melanosomes) from melanocytes to keratinocytes. This is a pigmentation-reducing mechanism — but it acts downstream of melanin production, not at the point of synthesis. Azelaic acid inhibits tyrosinase directly, intervening in the production of melanin itself.
For generalised pore-minimising, mild brightening, and barrier support, niacinamide is excellent and we would never discourage using it. But for the specific challenge of hormonal or inflammatory acne — particularly in Singapore where post-inflammatory hyperpigmentation is a primary concern across the skin tones we serve — it is not the most targeted active available.
What Azelaic Acid Does That Niacinamide Cannot
Direct tyrosinase inhibition: This is the most clinically significant distinction. Azelaic acid inhibits tyrosinase — the enzyme that catalyses melanin production — with a mechanism comparable to kojic acid and significantly more targeted than niacinamide’s downstream approach. For patients dealing with both active acne and the hyperpigmentation it leaves behind, azelaic acid addresses both within a single application.
Antibacterial activity against C. acnes: Azelaic acid interferes with bacterial cellular respiration, directly inhibiting C. acnes proliferation. This is a mechanism niacinamide does not share. For acne-prone skin where bacterial load is a driver, this matters.
Keratolytic action (follicle normalisation): Azelaic acid normalises the shedding of dead skin cells from the follicle wall — a process called abnormal keratinisation that is one of the earliest steps in comedone formation. Correcting this helps prevent new blockages from developing.
Evidence for rosacea: Prescription-strength azelaic acid has regulatory approval and clinical evidence for rosacea treatment in multiple markets. Niacinamide has supporting evidence for rosacea as well, but the mechanism and the strength of evidence for azelaic acid are more established.
Why This Matters for Singapore Skin
Singapore’s patient population trends toward medium-to-deeper skin tones where post-inflammatory hyperpigmentation is more pronounced and longer-lasting than in lighter skin. A breakout that leaves a minor mark on type II skin can leave a persistent dark spot on type IV or V skin that takes months to fade.
An active that both treats the breakout AND directly inhibits the melanin production triggered by that inflammation is meaningfully more valuable than two separate products. That is the core formulation logic of ClearBliss: one product, one twice-daily application, targeting both sides of the hormonal acne cycle simultaneously.
Niacinamide Has Its Place in This Routine
We are not suggesting niacinamide and azelaic acid are opposed. They are complementary. Niacinamide’s barrier-strengthening effects make it an excellent supporting player in any routine that includes actives — it reduces the sensitivity that strong exfoliants or retinoids can cause.
If you are using ClearBliss twice daily, you might find niacinamide useful as part of your moisturiser or in a lightweight separate step — specifically for its barrier support, sebum regulation, and pore-appearance benefits.
But for the primary anti-acne and anti-pigmentation mechanism in a dedicated active serum, azelaic acid is the correct choice. That is why ClearBliss is built around it.
For a professional acne assessment — including whether medical treatments like prescription retinoids or in-clinic procedures would complement your skincare — the team at SW1 Clinic is available for consultation. ClearBliss is available on sw1shop.com.
