Azulene

The deep blue compound that gives calming creams their colour, used to soften the look of redness.

On a label you may see
Guaiazulene and Chamazulene

Last reviewed August 7, 2026 · 28 sources, 11 of them regulators or official bodies · how we check this

Best time
Evening
How often
Daily
Strength
Gentle
Sun sensitivity
None

Where to apply

All over, not the eye area

Never in your eyes or on your lips.

What does Azulene do?#

A calming moisturizer built around azulene, the deep blue compound that gives these creams their colour. It helps soothe the appearance of redness and supports a more comfortable-looking complexion.

  • Helps calm the appearance of redness and visible flushing
  • Supports a more comfortable, soothed-looking complexion
  • The deep blue tint is azulene's own colour

How it works

Azulene is the deep blue compound that gives these creams their colour. It occurs in chamomile and yarrow oils, but the azulene used in skincare is made in the lab, and the form used most often comes from guaiac wood rather than a flower. It helps skin look calmer and less irritated for a healthier-looking complexion. Its gentle soothing properties make it well-suited for a daily moisturizer, contributing to a more comfortable and even-looking complexion.

How to use Azulene#

  • In the evening. Daylight fades the blue, so the ingredient keeps best overnight.
  • In routine order: a cream goes on last, after anything thinner.
  • Across the whole face. It is gentle enough for daily use from the start, and no build-up period is needed.
  • Keep it off the eye area and off the lips. Azulene creams are made for the face and body, and neither of those areas is a use the evidence covers.
  • It layers with the rest of a routine without needing an evening of its own.
  • Contact allergy to azulene is uncommon but has been reported, so patch test before first use. Azulene itself is not a daisy-family botanical — the form used in most creams comes from guaiac wood or is made in the lab — but some blue creams also carry chamomile extract, so check the full ingredient list if you react to daisy-family plants.
  • A blue formula that has drifted toward green or yellow has simply had light on it. That is the colour changing, not the product turning.

Discontinue use if irritation occurs. Contact allergy to azulene is uncommon but has been reported, so patch test before first use. Azulene itself is not a daisy-family botanical, but some blue creams also contain chamomile extract — if you react to daisy-family plants, check the full ingredient list.

The form you will see it in

Azulene soothing cream

Where it goes
As your moisturizer

Using Azulene with other ingredients

Pairs well with Azulene

Ceramides

Works well together

Azulene soothes while ceramides support the skin's lipid barrier.

What not to use with Azulene

Nothing flagged. None of the ingredients this wiki covers needs to be kept apart from Azulene — check the label of anything not covered here.

Who should avoid Azulene?#

Six situations change whether Azulene suits your skin right now. Each one is either a reason to skip it, a reason to go slowly, or nothing to watch for.

Maternity & Nursing
Go slowly
Fragile or Sensitive
No caution
Recent Facial or Laser
No caution
Prone to Redness
No caution
Dry or Itchy Patches
No caution
Recent Shave or Wax
No caution

Maternity & NursingIf you are pregnant or nursing, you may prefer to check with your healthcare provider before use.

Cosmetic strength limits for Azulene where you live#

RegionMaximum strength
United StatesNo explicit cap
CanadaNo explicit cap
European UnionNo explicit cap
Great BritainNo explicit cap

No cosmetic regulator in these four markets sets a maximum strength for azulene. That is a limit on the rules, not a signal to use more: how much goes into a product is the formulator's decision.

Products with Azulene#

We may earn a small commission when you buy through these links.

Common questions about Azulene#

When should you apply Azulene?

In the evening. Daylight fades the blue, so the ingredient keeps best overnight.

How often can you use Azulene?

Daily, all over, not the eye area.

Where do you apply Azulene?

All over, not the eye area. Keep it off your lips too.

Does Azulene make skin more sensitive to the sun?

No. Azulene is not flagged as increasing sun sensitivity.

What should you not use with Azulene?

Nothing flagged. None of the ingredients this wiki covers needs to be kept apart from Azulene — check the label of anything not covered here.

Who should avoid Azulene?

Go slowly with Maternity & Nursing.

Is there a cosmetic limit for Azulene?

No. No cosmetic regulator in the United States, Canada, the European Union or Great Britain sets a maximum strength for it. That is a limit on the rules, not a signal to use more.

How we check this#

Everything on this page traces to the sources listed below — regulators' own publications and published studies. Where the evidence does not answer a question, it is left unanswered.

Some sources below are the official product information for prescription medicines — some contain this ingredient at higher strengths, others are cited for how they interact with it. We use them for their safety and handling detail only. A cosmetic product is not one of those medicines and is not intended to treat any condition.

Our review is AI-assisted and is not a named expert's opinion. Last reviewed August 7, 2026.

Think something here is out of date or wrong? Email us at wiki@skinintelligence.ai with your reasoning and where you read it. We read what people send, and we update the page when the sources support it.

Regulators and official bodies · 11

  1. S121 CFR § 73.2180 — Guaiazulene. Cornell LII text of the Code of Federal Regulations.
  2. S2US FDA. Regulatory Status of Color Additives — Guaiazulene, CAS 489-84-9, with End Note 6; and the Color Additive Status List index used to verify the absence of an azulene entry.
  3. S6Cosmetic Ingredient Review Expert Panel. Chamomilla Recutita-Derived Ingredients as Used in Cosmetics. Final report, released 9 January 2014, Panel date 9–10 December 2013.
  4. S1721 CFR § 70.3 — Definitions, subsections (f), (g) and (v). Cornell LII text.
  5. S20Isotretinoin 10 mg soft capsules — Summary of Product Characteristics, UK electronic medicines compendium.
  6. S21Adapalene/Benzoyl Peroxide 0.1%/2.5% gel — Summary of Product Characteristics, UK electronic medicines compendium.
  7. S22Methotrexate 2.5 mg Tablets BP — Summary of Product Characteristics, UK electronic medicines compendium.
  8. S24Final report on the safety assessment of azulene. International Journal of Toxicology. 1999;18(3):27-32. · Cited as it appears in the reference list of S6, reference [2] — the article itself was not retrieved, and it is not indexed in PubMed. S6 attributes it to Andersen FA; because that attribution could not be checked against a PMID or DOI record, the work is cited here without an author name.
  9. S25Health Canada. Cosmetic Ingredient Hotlist — "About the Hotlist" / "How to read the Hotlist" landing page, including the section 16 Food and Drugs Act general prohibition.
  10. S26European Commission, DG GROW. Cosmetics — Legislation, listing the amending regulations to Regulation (EC) No 1223/2009.
  11. S27Regulation (EC) No 1223/2009 as retained in UK law — Annexes II, III, IV, V and VI, legislation.gov.uk, current text plus the Annex IV text as adopted.

Studies and references · 17

  1. S3Gabbanini S, Neba JN, Matera R, Valgimigli L. Photochemical and Oxidative Degradation of Chamazulene Contained in Artemisia, Matricaria and Achillea Essential Oils and Setup of Protection Strategies. Molecules. 2024 Jun 1. PMID 38893479, PMC11173868. · Authors confirmed against PMID 38893479.
  2. S4Safayhi H, Sabieraj J, Sailer ER, Ammon HP. Chamazulene: an antioxidant-type inhibitor of leukotriene B4 formation. Planta Med. 1994 Oct;60(5):410-3. PMID 7997466. DOI 10.1055/s-2006-959520. · Authors confirmed against PMID 7997466.
  3. S5Slon E, Slon B, Kowalczuk D. Azulene and Its Derivatives as Potential Compounds in the Therapy of Dermatological and Anticancer Diseases: New Perspectives against the Backdrop of Current Research. Molecules. 2024 Apr 27. PMID 38731510, PMC11085646. · Authors confirmed against PMID 38731510.
  4. S7COSMILE Europe (Cosmetics Europe). INCI entries for AZULENE and GUAIAZULENE.
  5. S8Wang L, Yan J, Fu PP, Parekh KA, Yu H. Photomutagenicity of cosmetic ingredient chemicals azulene and guaiazulene. Mutat Res. 2003 Sep 29. PMID 14563527, PMC3767376. · Authors confirmed against PMID 14563527.
  6. S9Chiang HM, Yin JJ, Xia Q, Zhao Y, Fu PP, Wen KC, Yu H. Photoirradiation of azulene and guaiazulene — Formation of reactive oxygen species and induction of lipid peroxidation. J Photochem Photobiol A Chem. 2010 Apr. DOI 10.1016/j.jphotochem.2010.02.007.
  7. S10Fiori J, Gotti R, Valgimigli L, Cavrini V. Guaiazulene in health care products: determination by GC-MS and HPLC-DAD and photostability test. J Pharm Biomed Anal. 2008 Aug 5;47(4-5):710-5. PMID 18395389. · Authors confirmed against PMID 18395389.
  8. S11Gunes T, Akin MA, Sarici D, Hallac K, Kurtoglu S, Hashimoto T. Guaiazulene: a new treatment option for recalcitrant diaper dermatitis in NICU patients. J Matern Fetal Neonatal Med. 2013 Jan;26(2):197-200. PMID 22928495. · Authors confirmed against PMID 22928495.
  9. S12Wang L, Yan J, Wang S, Cohly H, Fu PP, Hwang HM, Yu H. Phototoxicity and DNA damage induced by the cosmetic ingredient chemical azulene in human Jurkat T-cells. Mutat Res. 2004 Aug 8;562(1-2):143-50. PMID 15279837. · Authors confirmed against PMID 15279837.
  10. S13Yan H, Cai S, Wang F. Efficacy and feasibility analysis of compound fluocinolone acetonide cream combined with guaiazulene in the treatment of neurodermatitis. Arch Dermatol Res. 2024 Aug 20;316(8):546. PMID 39162834. · Authors confirmed against PMID 39162834.
  11. S14Angelini G, Vena GA. Allergic contact cheilitis to guaiazulene. Contact Dermatitis. 1984 May;10(5):311. PMID 6734192. · Authors confirmed against PMID 6734192.
  12. S15Balato N, Lembo G, Nappa P, Ayala F. Allergic cheilitis to azulene. Contact Dermatitis. 1985 Jul;13(1):39-40. PMID 2931244. · Authors confirmed against PMID 2931244.
  13. S16Paulsen E. The sesquiterpene lactone mix: A review of past, present and future aspects. Contact Dermatitis. 2023 Dec;89(6):434-441. PMID 37820718. · Author confirmed against PMID 37820718.
  14. S18Meneses AG, Ferreira EB, Vieira LAC, Bontempo PSM, Guerra ENS, Ciol MA, Reis PEDD. Comparison of liposomal gel with and without chamomile to prevent radiation dermatitis in breast cancer patients: a randomized controlled trial. Strahlenther Onkol. 2025 Feb;201(2):115-125. PMID 39283344. · Authors confirmed against PMID 39283344.
  15. S19Menêses AG, Ferreira EB, Vieira LAC, Bontempo PSM, Guerra ENS, Ciol MA, Reis PED. Comparison of liposomal gel with and without addition of chamomile for prevention of radiation dermatitis in head and neck cancer patients: A randomized controlled trial. Radiother Oncol. 2024 Oct;199:110440. PMID 39032836. · Authors confirmed against PMID 39032836.
  16. S23Jensen MB, Kursawe Larsen C, Hamann CR, Johansen JD, Quaade AS. Association Between Atopic Dermatitis and Contact Sensitization: An Updated Systematic Review and Meta-Analysis. Contact Dermatitis. 2026 Mar;94(3):201-225. PMID 41423749. · Authors confirmed against PMID 41423749.
  17. S28KEGG DRUG entries D01037 (guaiazulene, JAN, Azunol, ATC S01XA01), D02706 (sodium gualenate hydrate, JAN), D09768 (azulene, JAN), D04344, D04363.

Cosmetic guidance only. Skin Intelligence is a cosmetic skincare tool, not a medical device, and does not diagnose, treat, cure, or prevent any condition. Always follow the directions on the product you are using — where they differ from anything on this page, the label takes precedence. If you have a skin concern, please see a healthcare professional.

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