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What is Guaiazulene?

Antimicrobial

Guaiazulene is an antimicrobial that holds microbes back.

This ingredient is listed in CosIng, the EU's cosmetic ingredient database. CosIng lists what it's used for as: Antimicrobial, Perfuming.

CosIng function classes are the EU's standard list of the jobs an ingredient does inside a product, such as moisturizing, emulsifying, or preserving.

Which products feature it?

30 of the 2320 products we've checked feature this as a key ingredient. Products that disclose a concentration or list it near the top of the ingredient list come first.

Showing 1 to 12.

  • It's registered in Korea as a functional cosmetic for brightening.

    Key: Guaiazulene (#12 on the ingredient list), Niacinamide, Centella Asiatica Extract

    16 claims, summarized
    You can expect:
    less visible dark spots
    Only partly backed:
    better hydration · calmer skin
    Tests passed:
    non-comedogenic · skin irritation
    See each claim

    claims, checked

    • Take an appropriate amount with the dropper, spread it smoothly along the skin texture, and gently pat for absorption.backed by evidence
    • Whitening functionalbacked by evidence
    • *Image captured with an infrared camera; differences may occur depending on individual skin characteristics, usage amount, etc.backed by evidence
    • It also contains a whitening functional ingredient notified by the Ministry of Food and Drug Safety.backed by evidence
    • Clean beauty brand S.NATURE introduces its new product 'Aqua Oasis Blue Calming Ampoule' first at Musinsa.plausible, not tested
    • This product was designed with a focus on skin soothing based on S.NATURE's existing hydration line development experience.plausible, not tested
    • Eucalyptus-derived guaiazulene with 99% puritypartly backed
    • The company explains that the combination of eucalyptus-derived 99% high-purity guaiazulene, 4-type cica complex, and centella extract can help relieve heat and redness of irritated skin.partly backed
    • The product completed suitability for acne-prone skin and non-comedogenic testing (conducted at GSC Anti-Aging Lab on 20 subjects aged 14 to 40).partly backed
    • Blue agave leaf extract and 8-fold hyaluronic acid were added, and S.NATURE emphasizes a reduced-stickiness feel and moisture.partly backed
    • Sensitive skin irritation test was also completed.partly backed
    • Skin temperature DOWN, immediate -9℃ improvementoverstated
    • 8 types of hyaluronic acidoverstated
    • Also confirmed test results for soothing relief from physical irritation, temporary skin temperature reduction, improvement of outer and inner moisture immediately after use, and improvement of three-color (yellow, red, brown) marks.no supporting source found
    • Because it's S.NATURE, the brand you trust with exceptional ingredients chosen after much deliberation!nothing specific to check
    • The calming genius balance that is completed when used together.nothing specific to check
  • It's registered in Korea as a functional cosmetic for brightening and wrinkle improvement.

    Key: Guaiazulene (#13 on the ingredient list), Niacinamide, Adenosine

    33 claims, summarized
    You can expect:
    less visible dark spots · softer-looking fine lines
    Only partly backed:
    better hydration · calmer skin (amount unknown)
    Don't count on:
    firmer skin · better barrier support · a brighter skin tone
    See each claim

    claims, checked

    • Use until the period stated on the productbacked by evidence
    • Responsible cosmetics seller: Medians Co., Ltd. / Cosmetics manufacturer: Medians Lab Co., Ltd.backed by evidence
    • Dual functional cosmetic for whitening and wrinkle improvementbacked by evidence
    • Helps with skin whitening. Helps with skin wrinkle improvement.backed by evidence
    • This product may be exchanged or compensated in accordance with the Consumer Dispute Resolution Standards announced by the Fair Trade Commission.backed by evidence
    • 1. If abnormal symptoms or side effects such as red spots, swelling, or itching occur on the application site due to direct sunlight during or after use, consult a specialist, etc. 2. Refrain from use on areas with wounds, etc. 3. Precautions for storage and handling: a) Keep out of reach of children b) Store away from direct sunlightbacked by evidence
    • Dual functional: wrinkle improvement and whiteningbacked by evidence
    • Amino Acid Complex 17 types of amino acids / A substance composed of a total of 17 amino acids, it evenly delivers essential nutrients to each layer of the skin. It supplies nutrients to the skin and helps with skin condition care as a raw material for collagen, elastin, and hyaluronic acid. *The above description is limited to raw material propertiesbacked by evidence
    • *The above clinical data are the results of a test conducted by Medians' affiliated research institute.backed by evidence
    • How to use! / At the final step of skincare, take an appropriate amount, spread it gently over the entire face, and pat to absorb.backed by evidence
    • Histolab is not sold online.backed by evidence
    • Moisture barrier formation / Forms a moisture barrier on the skin leaving no room for dryness.plausible, not tested
    • [For Consumer] 80ml / [For Bulk] 500mlpartly backed
    • AZULENE DERMA SCIENCE Real calming solution with azulene energy for sensitive skin / HIGH TECH SKIN CARE Cream helps soothe and revitalize the skin with Sodium DNA / 80 ml / 2.7 fl.ozpartly backed
    • Simultaneous soothing and nutrition care / A solution cream where Azulene and DNA meet.partly backed
    • Contains Azulene, a powerful soothing ingredient extracted from chamomile flowers, and DNA, a key ingredient, to help care for sensitive and loose skin.partly backed
    • Guaiazulene / An ingredient extracted in high purity by distilling chamomile, it helps soothe and protect skin that easily becomes sensitive and heated by external environments. It is characterized by its own natural blue color from the ingredient, not artificially colored.partly backed
    • MULTIEX BSASM® PLUS Skin soothing / Quickly soothes sensitive skin with 7 natural compound plant extracts / Patent registration number: 10-0490212partly backed
    • Human application test / Skin application test results of Histolab Azulene DNA Cream!partly backed
    • Wrinkles / Wrinkle Percent = 40.2% (Before use) / Wrinkle Percent = 37.9% (After 10 days) / The more the gray area decreases, the better the skin smoothness.partly backed
    • Skin remodeling effect of two patented ingredients.overstated
    • Sodium DNA (PDRN), a key ingredient for skin elasticity, is DNA extracted from salmon testes, rich in omega-3 and essential vitamins, and is widely used for food intake as well as for its high human compatibility. *The above description is limited to raw material propertiesoverstated
    • Elasticity / Pores Count = 2,927 (Before use) / Pores Count = 2,682 (After 10 days) / A decrease in the number indicates improved elasticity.overstated
    • Primary soothing care cream that delivers nutrients to the skin.no supporting source found
    • A cream layering two patented ingredients step by step / Two patented ingredients, including Medians' exclusive patented ingredient SRGF H1 Complex™, soothe the skin and build up nutrients layer by layer to strengthen it.no supporting source found
    • SRGF H1 COMPLEX™ Skin barrier strengthening / An exclusive patented peptide strengthens the skin barrier to create healthy, vibrant skin / Patent registration number: 10-10579310no supporting source found
    • A *LTE low-temperature manufacturing method to fully contain active ingredients / *LTE: Low Temperature Emulsification / Histolab Azulene DNA Cream was made slowly over a long time at low temperature to fully contain active ingredients. / Low-temperature method step 1: Undergoes a cooling process to prevent moisture evaporation / Low-temperature method step 2: Active ingredients are added to the low-temperature base / Low-temperature method step 3: Slow mixing to prevent molecules from breakingno supporting source found
    • 2021.10.18 - 10.27 / This is the test result from Medians' affiliated research institute's internal test. The increase in the blue range and the decrease in the yellow and red ranges indicate that reddish areas disappear and skin tone becomes brighter and more even.no supporting source found
    • AZULENE DERMA SCIENCE helps soothe the sensitive skin with botanical ingredients / HICH TECH SKINCARE helps soothe the sensitive skin with botanical ingredients / 80 ml / 6.8 fl.ozcontradicted by sources
    • It is more effective to deliver nutrients after preparing the skin to absorb active ingredients well.nothing specific to check
    • The culmination of Histolab's beauty philosophy that soothes and protects tired skin.nothing specific to check
    • Plenty of skin soothing and nutrition! Azulene X DNAnothing specific to check
    • Even better when used together: Histolab Azulene skincare / Nurtures healthy skin with step-by-step soothing care.nothing specific to check
  • Key: Guaiazulene (#13 on the ingredient list), Niacinamide, Tocopherol

    5 claims, summarized
    Free of:
    the ingredients it lists
    See each claim

    claims, checked

    • Fragrance has been excluded, and due to the nature of azulene, the blue contents may vary depending on temperature and light, but there is no abnormality in the product's efficacy and quality.backed by evidence
    • Recommended for skin that is temporarily reddened by external environmental stimuli, when cooling soothing is needed for skin that has become hot, when first-step moisture boosting is needed, and for sensitive skin and dehydrated oily skin.plausible, not tested
    • It is a low-irritation formula that has completed dermatological testing, with no significant irritation reactions observed in a primary skin irritation test on 33 subjects, with an irritation index of 0.00.plausible, not tested
    • With 0% animal-derived raw materials, it has completed official vegan certification by the Korea Vegan Certification Agency.plausible, not tested
    • To skin that has become heated due to external irritation and temperature changes, it delivers moisture-soothing cooling that seeps in refreshingly like a welcome rain to cool down the heat. The light watery formula is quickly absorbed, and the synergy of azulene and niacinamide gently soothes sensitivity, balances oil and moisture, and finishes with clear, calm skin.overstated
  • It's registered in Korea as a functional cosmetic for wrinkle improvement.

    Key: Guaiazulene (#13 on the ingredient list), Sh-Oligopeptide-1, Sh-Polypeptide-1

    45 claims, summarized
    You can expect:
    softer-looking fine lines
    Only partly backed:
    calmer skin (amount unknown) · clearer-looking skin · firmer skin
    Don't count on:
    a brighter skin tone
    Free of:
    the ingredients it lists
    Tests passed:
    non-comedogenic · skin irritation
    See each claim

    claims, checked

    • Functional cosmetic for wrinkle improvement.backed by evidence
    • Primary skin irritation test completed.backed by evidence
    • Sensitive skin primary irritation test completed.backed by evidence
    • Acne-prone skin suitability test completed.backed by evidence
    • Fragrance-free formula.backed by evidence
    • The product's blue color is not an artificial pigment but the natural color of the guaiazulene ingredient.backed by evidence
    • EGF maximum content 10 ppmplausible, not tested
    • FGF 10ppmplausible, not tested
    • A water-type ampoule that is quickly absorbed without residue so that sensitive, acne-prone, and upset skin can use it without burden.plausible, not tested
    • EGF ampoule that soothes troubled skin and firmly boosts skin stamina.partly backed
    • Meet the skin-safe blue drop that has completed suitability testing for acne-prone skin.partly backed
    • Soothes reddened sensitive skin.partly backed
    • Suitable for use on acne-prone skin.partly backed
    • Containing EGF and guaiazulene intensively as key ingredients for sensitive care, it provides a comfortable soothing sensation to the skin.partly backed
    • Additionally, by excluding as much as possible artificial ingredients such as polymers that enhance spreadability and viscosity modifiers, we designed the formulation to naturally absorb into the skin upon contact.partly backed
    • Skin irritation index 0.00partly backed
    • Physical irritation* soothed by 46.5%.partly backed
    • Heat irritation* soothed by 21.1%.partly backed
    • Acne-prone skin sebum* decreased by 63.4%.partly backed
    • Skin density* improved by 11.8%.partly backed
    • Eye wrinkles* improved by 7.3%.partly backed
    • Skin elasticity improvement 5.7%.partly backed
    • Facial lifting improvement 2.5%.partly backed
    • Skin texture* improved by 11.4%.partly backed
    • Infused with 1,000ppm Guaiazulene, this natural herbal powerhouse provides immediate relief and deep calming for sensitized skin.partly backed
    • A 100% fragrance-free, non-comedogenic formula that ensures intensive care without clogging pores or irritating even the most sensitive, acne-prone skin.partly backed
    • Care for loose-looking skin density.partly backed
    • Beyond soothing, even to collapsed skin elasticity.overstated
    • Comfortable active formula without irritation.overstated
    • EGF is an epidermal growth factor important for cell proliferation and differentiation, and since EGF in the body sharply declines* after one's 20s, it is necessary to supplement EGF.overstated
    • With FGF peptides added, it makes weakened skin more firm.overstated
    • Collagen production 126.3%.overstated
    • 3-Min Instant Calming: Delivers rapid relief for irritated skin, making it the perfect emergency solution for redness & acne.overstated
    • A soothing formula filled with EGF X guaiazulene.overstated
    • This is the maximum content that can be put in cosmetics under domestic standards, and if it exceeds 10ppm, it is classified as a pharmaceutical.no supporting source found
    • EGF with purity of 95% or higher, identical to the human protein structure.no supporting source found
    • Skin absorption is good.no supporting source found
    • Skin became smooth.no supporting source found
    • Helps soothe skin irritated by external stimuli (physical, thermal).no supporting source found
    • Helps improve skin firmness.no supporting source found
    • From the vegan formula to the packaging, we consider a better direction.no supporting source found
    • Post-Acne Mark Recovery: Targets and fades stubborn blemish marks and pigmentation, restoring a clear and even skin tone.no supporting source found
    • Dear Klairs is cruelty-free.no supporting source found
    • Ingredient design that soothes weakened skin and replenishes its natural healthiness.nothing specific to check
    • Weakened skin condition care.nothing specific to check
  • Key: Guaiazulene (#16 on the ingredient list), Centella Asiatica Extract, Ectoin

    4 claims checked

    claims, checked

    • A soothing cleansing balm for sensitive skinoverstated
    • It cleanly removes makeup, skin flakes and impurities and helps soothe the skin.overstated
    • Fresh deep cleansing all the way inside the porescontradicted by sources
    • From cleansing to makeup, Banila Co, the house of radiant complexionnothing specific to check
  • With Hyaluronic Acid, you can expect better hydration.

    Key: Guaiazulene (#16 on the ingredient list), Hyaluronic Acid, Squalane

    8 claims, summarized
    You can expect:
    better hydration
    See each claim

    claims, checked

    • Oligo Hyaluronic Acid (Moisture)backed by evidence
    • Moisture cling! A capsule jelly mist that, without oiliness, attaches only moisture.plausible, not tested
    • 1. The moment you spray, a moisture sticker that fills and attaches moisture.plausible, not tested
    • 2. With clean Canadian glacier water, moisture cooling care from heat to tightness.partly backed
    • Low molecular weight hyaluronic acid and 11 types of peptides fill moisture.partly backed
    • 3. Without makeup collapse, the makeup absorption effect that leaves a moisture glow.no supporting source found
    • Moisture cling! A capsule jelly mist that, without oiliness, attaches only moisture. 1. The moment you spray, a moisture sticker that fills and attaches moisture. 2. With clean Canadian glacier water, moisture cooling care from heat to tightness. 3. Without makeup collapse, the makeup absorption effect that leaves a moisture glow.nothing specific to check
    • Moisture cling! A capsule jelly mist that, without oiliness, attaches only moisture. 1. The moment you spray, a moisture sticker that fills and attaches moisture. 2. With clean Canadian glacier water, moisture cooling care from heat to tightness. 3. Without makeup collapse, the makeup absorption effect that leaves a moisture glow.nothing specific to check
  • Key: Guaiazulene (#17 on the ingredient list), Panthenol 5%

    10 claims, summarized
    Don't count on:
    calmer skin · better hydration · a smoother skin texture · better barrier support
    Tests passed:
    hypoallergenic
    See each claim

    claims, checked

    • D-PANTHENOL 5% GUAIAZULENE 50ppmplausible, not tested
    • D-Panthenol is a provitamin B5 that changes into vitamin B5 when absorbed into the skin, helping to protect and strengthen the skin barrier. It has the property of attracting moisture, making it an excellent moisturizing ingredient.plausible, not tested
    • DERMA FACTORY be:zero Comfort Cream is a low irritant hypoallergenic cream that contains 5% D-panthenol together with 50 ppm Guaizulene and provides comfortable moisturizing to sensitive skin and strengthens and protects the skin barrier.partly backed
    • Certified vegan, 0.00 of Skin irritation level, Sub-acidic, Minimal ingredients.partly backed
    • Guaizulene is a blue-colored ingredient that is excellent at soothing heated and irritated skin. This essence, which has a blue color unique to Azulene, delivers soothing effects to the skin.overstated
    • The lightweight moisturizing cream formula wraps the skin comfortably and provides intensive care for dead skin cells, redness, and tightness caused by skin dryness .overstated
    • The non-occlusive formulation delivers intensive moisture without suffocation, addressing dryness-induced redness, flakiness, and tightness.overstated
    • Free from artificial colorants, this minimalist approach ensures zero irritation for consistently healthy skin.overstated
    • A clinically-tested hypoallergenic formula designed specifically for sensitive skin.no supporting source found
    • This pH-balanced cream (3.8-5.8) features 5% D-Panthenol to strengthen your skin barrier while guaiazulene provides exceptional soothing properties.no supporting source found
  • It's made for better hydration and calmer skin.

    Key: Guaiazulene (#18 on the ingredient list), Niacinamide, Chamomilla Recutita (Matricaria) Flower Water

    28 claims, summarized
    Only partly backed:
    better hydration · calmer skin · less shine · less visible dark spots
    Free of:
    8 listed ingredients
    Tests passed:
    skin irritation
    See each claim

    claims, checked

    • Deep moisture, fast soothing, and cleanly clears troubles*, blemish marks and traces! High-purity azulene mark-soothing moisture ampoulepartly backed
    • Skin surface & inner moisture recharge, pigmentation improvement, skin soothingpartly backed
    • Blue.C Azulene, Niacinamidepartly backed
    • Pigmentation area 2-week improvement -16.4%partly backed
    • Immediately after use, compared to no application, skin 10 layers* +209.67%partly backed
    • Rapid cooling after just one use -5.17℃partly backed
    • After 2 weeks of use, compared to before use, number of pigmentation marks -16.3%partly backed
    • After 2 weeks of use, compared to before use, number of red marks* -13.46%partly backed
    • After 2 weeks of use, compared to before use, number of brown marks* -3.2%partly backed
    • Immediately after use, compared to before use, redness* -4.3%partly backed
    • Skin 10 layers* inner moisture increasepartly backed
    • Immediately after use, compared to before use, sebum decrease -5.14%partly backed
    • Immediately after use, compared to before use, moisture increase +23.79%partly backed
    • Soothing, sebum care, barrier strengthening effects, and niacinamide 40,000ppm, a whitening functional ingredientpartly backed
    • This product showed no significant skin irritation response in the primary skin irritation test. (score 0.0)partly backed
    • Vegan certification complete: 0% animal-derived ingredients (officially certified by Korea Vegan Certification Institute)partly backed
    • New formula* filled with moisturepartly backed
    • Water jelly ampoule formula with a blue color derived from azulene, soothing just from looking at itpartly backed
    • Cooling tail effect that stretches and sustains the initial cooling sensation upon usepartly backed
    • Excludes 8 unnecessary ingredientspartly backed
    • Perceived skin texture improvement +19.6%no supporting source found
    • Perceived oiliness improvement +20.6%no supporting source found
    • - Immediately after use -23.95%no supporting source found
    • Overall satisfaction - 100%no supporting source found
    • Azulene with soothing power faster than cicano supporting source found
    • 99% high-purity azulene extracted from chamomileno supporting source found
    • Dermatology test completed: DERMATOLOGICALLY TESTEDno supporting source found
    • Compared to existing Mamonde liquid formula moisture ampoule, the more you roll on skin, the more dramatic the absorptionno supporting source found
  • It's made for calmer skin.

    Key: Guaiazulene (#21 on the ingredient list), Allantoin, Hyaluronic Acid

    7 claims, summarized
    Only partly backed:
    calmer skin (amount unknown)
    See each claim

    claims, checked

    • A refreshing water-based makeup remover.backed by evidence
    • A refreshing and soft texture like water.backed by evidence
    • Experience a gentle cleansing ritual with a water-like light formula. It provides a refreshing finish without any stickiness felt immediately after cleansing.partly backed
    • Soothing cleansing with no burden on the eyes.partly backed
    • Allantoin comfortably soothes tired eye areas, providing a moist, low-irritation cleansing moment.partly backed
    • Strong cleansing power that removes point makeup with one touch.overstated
    • Waterproof makeup is also removed cleanly and without residue with just one touch.no supporting source found
  • Cell Fusion C

    포스트 알파 쿨링 패드 (Korean)This brand publishes no English name for this product. The name above is as printed in Korean.

    Key: Guaiazulene (#23 on the ingredient list), Methyl Diisopropyl Propionamide, Chamomilla Recutita (Matricaria) Extract

    5 claims checked

    claims, checked

    • Immediate cooling of heated skin temperature in only 3 secondspartly backed
    • Glacier water cooling essence fully filled in the padpartly backed
    • It is a glacier water essence pad that instantly cools heated skin temperature in only 3 secondspartly backed
    • Glacier water essence lowers skin temperature and cultivates skin that absorbs makeup wellno supporting source found
    • Long-lasting cool makeup.well.absorbing cheat key padnothing specific to check

Are the claims about it backed up?

We checked each claim that features this ingredient. Open the list below to see the result for each one.

See the results by claim
ResultClaims
backed by evidence3 of 27
plausible, not tested2 of 27
partly backed13 of 27
overstated3 of 27
no supporting source found4 of 27
nothing specific to check2 of 27

These are counts of claims, not products. One product can name the same ingredient in several claims, and we checked each one on its own.