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Calm Down: Your Guide to 10% Azelaic Acid

Written by Leah Corrin

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Posted on October 04 2026

Breakouts, visible redness and marks that linger can make choosing skincare feel complicated. I’m Leah Corrin, founder of EOL and a medical aesthetician with 22 years of hands-on clinical experience. I want you to understand what you’re putting on your skin and how it fits into your routine. Here’s my guide to azelaic acid and Calm Down, our 10% azelaic acid serum.

Why azelaic acid deserves a closer look

Azelaic acid is an ingredient with several useful roles in skincare. It can help keep pores clear, reduce inflammation and address excess pigmentation. That’s why it comes up in conversations about blemishes, redness and uneven skin tone.

One distinction matters before we go further: much of the clinical evidence uses prescription-strength 15% or 20% preparations. The condition-related benefits below describe azelaic acid as an ingredient, rather than proven treatment outcomes for Calm Down. Our 10% cosmetic serum is formulated to support smoother-looking texture, a more even-looking tone and the appearance of redness. It doesn’t replace prescribed care.

What can azelaic acid help with?

Acne and clogged pores

Azelaic acid helps reduce the build-up of cells inside pores and has antibacterial and anti-inflammatory activity. Dermatologists use it for acne, including some clogged pores and inflamed blemishes. If you also have marks after a breakout settles, its role in pigmentation makes it an ingredient worth understanding.

Rosacea-related bumps

Azelaic acid is also used for papulopustular rosacea, which causes inflammatory bumps and pustules. It can improve those bumps and some associated redness. Persistent flushing and visible blood vessels are different concerns, so getting a diagnosis is important before deciding what your skin needs.

Marks left after breakouts

A flat brown mark after a blemish is often post-inflammatory hyperpigmentation. It’s different from an indented or raised scar. Azelaic acid can help with this excess pigmentation, which is why it’s discussed for a more even-looking complexion. Fading marks takes patience, and preventing ongoing irritation matters too.

Melasma and uneven pigmentation

Azelaic acid is one of the topical options dermatologists may use for melasma. Melasma often needs a longer-term plan because pigmentation can return. Consistent sun protection is essential, and a professional assessment can help you understand whether a patch of discolouration is melasma or something else.

Who would I consider Calm Down for?

I’d consider Calm Down for someone with blemish-prone skin, visible redness or uneven-looking texture and tone who wants a lightweight, moisturising serum. Oily and combination skin still need moisture. With dry or reactive skin, I’d take a slower approach and pay close attention to comfort.

If you have eczema, active irritation or a diagnosed skin condition, or you’re using prescription skincare, check with your dermatologist before adding another active. Deep, painful or scarring acne also needs medical attention.

A closer look at the formula

Calm Down combines 10% azelaic acid with rosemary leaf extract, green tea, liquorice root and vitamin E. It also contains glycerin, bisabolol, centella asiatica and allantoin.

My approach with EOL is to support the skin while addressing your concerns. Calm Down sits in Step 3, Repair, of the EOL routine. You can keep the surrounding routine simple as you introduce it.

How I’d introduce Calm Down

  1. Test a small area first. Review the ingredient list, especially if you have known sensitivities. Plant extracts can cause reactions too.
  2. Start once daily. After cleansing, apply 2–3 pumps over the face and neck, avoiding the eyes and lips. Follow with your moisturiser.
  3. Let comfort guide you. The directions allow morning and evening use, but give your skin time to adjust before increasing frequency. Introduce other active products separately so you can tell how your skin responds.
  4. Finish your morning routine with sunscreen. Choose broad-spectrum SPF 30 or higher and follow its reapplication directions. This is especially important when uneven pigmentation is a concern.

Azelaic acid can cause stinging, itching, dryness or redness. Stop using it and seek medical advice if irritation is significant or persistent. More frequent application won’t necessarily give you better results.

Give your skin time

I’d encourage you to look for gradual changes over weeks to months and notice how your skin feels along the way. Individual results vary. Consistency is easier when your routine is comfortable and manageable.

You can shop Calm Down – Azelaic Acid 10% and explore the full ingredient list and product details here.

This is general skincare education and doesn’t replace personalised medical advice.

Further reading

With gratitude,
Leah Corrin xo

Founder, EOL Medical Skincare

Leah Corrin, founder of EOL Medical Skincare