Complimentary gift on orders over AUD 75 | Free Australia-wide shipping on orders over AUD 150

  • Last stock! Cos De BAHA AZ Azelaic Acid 10% Serum | Rosacea + Acne Scars + Brightening | 30ml
  • Cos De BAHA AZ Azelaic Acid 10% Serum | Rosacea + Acne Scars + Brightening | 30ml
Product form

Cos De BAHA AZ Azelaic Acid 10% Serum | Rosacea + Acne Scars + Brightening | 30ml

$45.00

10% Azelaic Acid. Nothing unnecessary. Everything your skin needs.

The Cos De BAHA AZ Azelaic Acid 10% Serum is a no-nonsense, clinically-inspired Korean treatment serum built around a 10% concentration of Azelaic Acid — one of the most versatile and well-researched actives in skincare, proven to fade acne scars, improve hyperpigmentation, and provide relief for rosacea-prone skin. 

What makes this formula stand out is its rare combination of high-efficacy and exceptional gentleness. Free from harsh alcohols, common allergens, fragrances, oils, parabens, silicones, and sulfates — this is a serum that delivers clinical-grade results without any of the irritants that compromise sensitive skin. A lightweight, fast-absorbing water serum texture that disappears into the skin and simply gets to work. 

For anyone dealing with persistent redness, post-breakout marks, blackheads, melasma, or uneven tone — this is the serum to reach for.

Estimated delivery 06/07

  • Cruelty Free

  • Australian Owned

  • Secure Checkout

Benefits

10% Azelaic Acid visibly fades acne scars, post-breakout marks, and hyperpigmentation

Clinically recognised for reducing the visible redness and flushing associated with rosacea

Gently unclogs pores and reduces blackhead formation

Niacinamide brightens, minimises pores, and strengthens the skin barrier

Aloe Vera + Panthenol (Vitamin B5) soothe and calm irritated or reactive skin

Hyaluronic Acid (Sodium Hyaluronate 0.2%) keeps skin hydrated throughout treatment

Green Tea (Camellia Sinensis) + Elderflower (Sambucus Nigra) + Edelweiss (Leontopodium Alpinum) provide antioxidant protection

Bitter Melon (Momordica Charantia) offers additional brightening and anti-inflammatory support

Fragrance-free, alcohol-free, oil-free, paraben-free, silicone-free, sulfate-free

Suitable for all skin types including sensitive, rosacea-prone, and acne-prone

Safe for use during pregnancy, Azelaic Acid is one of the only brightening actives with a strong pregnancy safety profile

Lightweight water-serum texture absorbs instantly, no residue

Ingredients

Azelaic Acid 10% A naturally occurring dicarboxylic acid produced by a yeast that lives on normal human skin. At 10%, it works as a mild exfoliant, helps to reduce breakouts and clogged pores, reduces hyperpigmentation, calms inflammation, and can help neutralise free radicals. It's one of the only brightening and acne-fighting actives that is safe for use during pregnancy and breastfeeding, making it uniquely versatile.

Niacinamide (Vitamin B3) Improves elasticity, reduces redness, and evens skin tone working in perfect synergy with Azelaic Acid to accelerate brightening and barrier-building results simultaneously.

Aloe Barbadensis Leaf Extract A natural ingredient renowned for its soothing and moisturising properties that forms the base of this formula, ensuring the high-concentration Azelaic Acid is delivered in a calming, comfortable vehicle.

Panthenol (Vitamin B5) Deeply soothes, repairs the skin barrier, and reduces inflammation essential support for any skin undergoing active treatment for rosacea, acne, or pigmentation.

Sodium Hyaluronate 0.2% Draws and locks moisture into the skin, preventing any dryness or tightness that can occur with actives-focused serums.

Camellia Sinensis (Green Tea) Leaf Extract A powerful antioxidant that protects the skin against external aggression while contributing additional anti-inflammatory and pore-refining benefits.

Sambucus Nigra (Elderflower) Flower Extract \A gentle brightening and soothing botanical that supports the Azelaic Acid's pigmentation-fading action and calms reactive skin.

Leontopodium Alpinum (Edelweiss) Extract One of the most potent alpine plant antioxidants available, protecting skin cells from UV-induced and environmental oxidative stress.

Momordica Charantia (Bitter Melon) Fruit Extract A brightening and anti-inflammatory botanical that supports a clearer, more even complexion and contributes additional antioxidant protection.

How to use
  1. Cleanse and tone your skin as usual.
  2. Apply a small amount of serum onto the face.
  3. Gently massage in using upward circular motions for better absorption.
  4. Follow with your moisturiser.
  5. Always apply SPF in the morning, Azelaic Acid increases photosensitivity.
  6. Use morning and/or evening, suitable for both.

For rosacea or reactive skin, begin with evening use only and introduce morning use gradually once skin has adjusted. Use sparingly for a thorough skin reset a little goes a long way.

Product size

30ml

⚠️ Cautions

  • Patch test before first use, especially for sensitive and rosacea-prone skin.
  • A mild tingling sensation upon first use is normal if persistent irritation occurs, discontinue use and consult a healthcare professional.
  • Always apply SPF the morning after use.
  • Avoid direct contact with eyes.
  • Keep out of reach of children.
  • Store in a cool, dry place away from direct sunlight.
Need help?

If you have questions about our products, how to use them, or which option is right for your skin, our team is here to help. Feel free to reach out to us at any time and we will be happy to assist you with personalized guidance and support.

support@dermion.beauty

Footer imageFooter image

© 2026 Dermion — Australia-based business. Powered by Shopify

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Back to top