[{"data":1,"prerenderedAt":615},["ShallowReactive",2],{"allerbot-answer-nickel-allergy-cosmetics":3,"allerbot-answers-more-nickel-allergy-cosmetics":144},{"id":4,"title":5,"body":6,"description":128,"extension":129,"followUp":130,"meta":131,"navigation":132,"path":133,"question":134,"seo":135,"stem":136,"summary":137,"tags":138,"updatedAt":142,"__hash__":143},"allerbotAnswers/allerbot/answers/nickel-allergy-cosmetics.md","Nickel allergy and cosmetics",{"type":7,"value":8,"toc":121},"minimark",[9,19,24,32,60,64,67,71,104],[10,11,12,13,18],"p",{},"Nickel is the single most common patch-test positive worldwide — including among AllerNote users, where it sits near the top of ",[14,15,17],"a",{"href":16},"/research","our community data",". Most people associate it with jewellery and belt buckles, but cosmetics deserve a place on the checklist too.",[20,21,23],"h2",{"id":22},"where-nickel-hides-in-cosmetics","Where nickel hides in cosmetics",[10,25,26,27,31],{},"You won't find \"nickel\" on an ingredient list — it's never added deliberately. It arrives as a ",[28,29,30],"strong",{},"trace contaminant",":",[33,34,35,42,48,54],"ul",{},[36,37,38,41],"li",{},[28,39,40],{},"Pigmented products."," Iron oxides, ultramarines, and other mineral pigments can carry nickel traces from their source ores. Eye shadow, eyeliner, mascara, and mineral foundations are the usual suspects.",[36,43,44,47],{},[28,45,46],{},"Dark shades more than light ones."," More pigment load generally means more trace metal.",[36,49,50,53],{},[28,51,52],{},"Tools and packaging."," Metal eyelash curlers, mascara wands' metal cores, tweezers, and metal-clad compacts contact skin directly — classic sources of eyelid and fingertip dermatitis.",[36,55,56,59],{},[28,57,58],{},"Green-tinted glass and some brushes"," occasionally test positive too.",[20,61,63],{"id":62},"the-eyelid-clue","The eyelid clue",[10,65,66],{},"Eyelid skin is the thinnest on the body, and eyelid dermatitis is the textbook presentation of cosmetic nickel exposure — often from eye makeup, curlers, or nickel transferred from fingers. If your eyelids flare but your face tolerates products fine, think nickel (and its frequent companion, cobalt).",[20,68,70],{"id":69},"what-you-can-actually-do","What you can actually do",[72,73,74,80,86,92,98],"ol",{},[36,75,76,79],{},[28,77,78],{},"Favour low-pigment, cream-based formulas"," over powder minerals if you're strongly reactive.",[36,81,82,85],{},[28,83,84],{},"Swap metal tools"," for plastic or coated versions — the eyelash curler is the classic fix.",[36,87,88,91],{},[28,89,90],{},"Look for \"nickel-tested\" claims."," Some European brands certify nickel below 1 ppm (\"nickel tested\" / \"0.00001%\") — one of the few front-of-pack claims that's actually useful.",[36,93,94,97],{},[28,95,96],{},"Watch cross-reactors and companions."," Cobalt allergy commonly travels with nickel; your patch-test sheet will say.",[36,99,100,103],{},[28,101,102],{},"Mind the non-cosmetic load too"," — nickel exposure is cumulative across jewellery, keys, phones, and even diet in severe cases; your dermatologist can advise whether a low-nickel diet is relevant for you.",[10,105,106,107,111,112,115,116,120],{},"Because nickel is a contaminant rather than a listed ingredient, label scanning can't directly detect it — this is one allergy where product ",[108,109,110],"em",{},"type"," and ",[108,113,114],{},"tools"," matter more than the INCI list. For the rest of your allergen profile, the usual rule applies: ",[14,117,119],{"href":118},"/tools/try","check every label"," against your patch-test results.",{"title":122,"searchDepth":123,"depth":123,"links":124},"",2,[125,126,127],{"id":22,"depth":123,"text":23},{"id":62,"depth":123,"text":63},{"id":69,"depth":123,"text":70},"Nickel is the single most common patch-test positive worldwide — including among AllerNote users, where it sits near the top of our community data. Most people associate it with jewellery and belt buckles, but cosmetics deserve a place on the checklist too.","md","What should a nickel-allergic person check before buying eye makeup?",{},true,"/allerbot/answers/nickel-allergy-cosmetics","I'm allergic to nickel — does that matter for makeup and skincare?",{"title":5,"description":128},"allerbot/answers/nickel-allergy-cosmetics","Yes, more than most people expect. Nickel isn't an intentional cosmetic ingredient, but it appears as a trace contaminant in pigmented products — especially eye makeup and mineral formulas — and in metal applicators and packaging. Eyelid dermatitis is the classic presentation.",[139,140,141],"nickel","makeup","patch testing","2026-07-16","jBEPM81V0nNkeOedBuD2-u5nq-o3c6cQDQl6EcD0cTk",[145,266,374,505],{"id":146,"title":147,"body":148,"description":152,"extension":129,"followUp":254,"meta":255,"navigation":132,"path":256,"question":257,"seo":258,"stem":259,"summary":260,"tags":261,"updatedAt":142,"__hash__":265},"allerbotAnswers/allerbot/answers/cocamidopropyl-betaine-shampoo-rash.md","Shampoo rash that isn't on the scalp",{"type":7,"value":149,"toc":249},[150,153,157,164,186,189,193,223,227,242],[10,151,152],{},"One of dermatology's favourite plot twists: the shampoo rash that never touches the scalp.",[20,154,156],{"id":155},"why-the-rash-appears-in-the-wrong-place","Why the rash appears \"in the wrong place\"",[10,158,159,160,163],{},"Scalp skin is thick and hair shields it. But when you rinse, the diluted product sheets over your ",[28,161,162],{},"eyelids, ears, neck, and upper back"," — thinner, more permeable skin where allergens do their work. Residue also lingers along the hairline and wherever hair rests. So shampoo allergy classically presents as:",[33,165,166,173,180],{},[36,167,168,169,172],{},"flaky, itchy ",[28,170,171],{},"eyelids"," (the thinnest skin wins)",[36,174,175,176,179],{},"an itchy ",[28,177,178],{},"neck or upper back",", especially under longer hair",[36,181,182,183],{},"rash ",[28,184,185],{},"behind the ears",[10,187,188],{},"Meanwhile the scalp feels fine, so the shampoo escapes suspicion for months.",[20,190,192],{"id":191},"the-usual-suspects-in-the-bottle","The usual suspects in the bottle",[33,194,195,206,217],{},[36,196,197,200,201,205],{},[28,198,199],{},"Cocamidopropyl betaine (CAPB)."," A mild-reputation surfactant in countless shampoos — including baby and \"sulfate-free\" formulas. It's a well-documented contact allergen (technically via its manufacturing impurities), common enough to be in standard patch-test series. In our ",[14,202,204],{"href":203},"/research/what-people-actually-scan","real-world scan data",", it's among the most frequently flagged ingredients in the products users actually check.",[36,207,208,211,212,216],{},[28,209,210],{},"Fragrance."," Nearly universal in hair care. Rinse-off products get a 10× higher threshold before the EU's ",[14,213,215],{"href":214},"/allerbot/answers/eu-fragrance-allergen-rules-2026","new labelling rules"," force individual naming, so plenty stays hidden under \"Parfum\".",[36,218,219,222],{},[28,220,221],{},"Preservatives."," MI/MCI built its reputation as \"the shampoo allergen\" before being restricted in leave-ons; it's still permitted in rinse-off products.",[20,224,226],{"id":225},"how-to-test-the-theory","How to test the theory",[72,228,229,232,239],{},[36,230,231],{},"Swap to a shampoo free of your suspect (start with CAPB-free and fragrance-free) for 3–4 weeks — eyelid skin recovers slowly.",[36,233,234,235,238],{},"Wash your face ",[108,236,237],{},"after"," rinsing your hair, not before, so residue doesn't sit on your face.",[36,240,241],{},"If the rash persists, ask a dermatologist about patch testing — eyelid dermatitis has several other classic causes (nail products, nickel, airborne allergens) worth distinguishing.",[10,243,244,245,248],{},"To check what's actually in your current bottle, ",[14,246,247],{"href":118},"scan the label"," — AllerNote flags CAPB, fragrance components, and preservatives against your profile in seconds.",{"title":122,"searchDepth":123,"depth":123,"links":250},[251,252,253],{"id":155,"depth":123,"text":156},{"id":191,"depth":123,"text":192},{"id":225,"depth":123,"text":226},"Check my shampoo's ingredients for common rinse-off allergens.",{},"/allerbot/answers/cocamidopropyl-betaine-shampoo-rash","Could my shampoo be causing the rash on my eyelids and neck?",{"title":147,"description":152},"allerbot/answers/cocamidopropyl-betaine-shampoo-rash","Yes — and the location is the giveaway. Shampoo allergens rarely cause scalp rashes; they show up where the rinse water travels and where residue lingers: eyelids, ears, neck, upper back. Cocamidopropyl betaine and fragrance are the usual suspects, and both hide in 'gentle' and baby formulas too.",[262,263,264],"shampoo","cocamidopropyl betaine","eyelid dermatitis","G78rvIbx4ezKi6cJbWjJ9ZtaDpmaNg2fuMz-DtOngAI",{"id":267,"title":268,"body":269,"description":273,"extension":129,"followUp":362,"meta":363,"navigation":132,"path":364,"question":365,"seo":366,"stem":367,"summary":368,"tags":369,"updatedAt":142,"__hash__":373},"allerbotAnswers/allerbot/answers/eczema-picking-safe-products.md","Picking products with lifelong eczema",{"type":7,"value":270,"toc":357},[271,274,278,285,289,326,330,337,351],[10,272,273],{},"Living with eczema means your skin barrier lets things in that intact skin would block — including allergens from your own skincare. That changes the shopping rules.",[20,275,277],{"id":276},"why-eczema-skin-develops-product-allergies","Why eczema skin develops product allergies",[10,279,280,281,284],{},"A compromised barrier plus frequent product use is the classic recipe for developing ",[108,282,283],{},"new"," contact allergies over time. Studies of eczema patients consistently show elevated rates of contact sensitization to ingredients in the very products used to treat their skin — emollient bases, preservatives, fragrance, even topical medication ingredients. If your \"safe\" moisturizer of years suddenly seems to make things worse, that's not paranoia; sensitization is acquired.",[20,286,288],{"id":287},"practical-selection-rules","Practical selection rules",[33,290,291,297,308,314,320],{},[36,292,293,296],{},[28,294,295],{},"Short lists win."," Every extra ingredient is another lottery ticket. Bland, boring formulas with 10 ingredients beat sophisticated ones with 40.",[36,298,299,302,303,307],{},[28,300,301],{},"No fragrance, in any form."," That includes essential oils and scented botanicals — see ",[14,304,306],{"href":305},"/allerbot/answers/fragrance-free-vs-unscented","why \"fragrance-free\" isn't always allergen-free",".",[36,309,310,313],{},[28,311,312],{},"Be botanical-skeptical."," Aloe, calendula, chamomile, tea tree — soothing by reputation, allergens by patch-test data.",[36,315,316,319],{},[28,317,318],{},"Mind the classics:"," lanolin (wool alcohols), propylene glycol, MI/MCI and formaldehyde-releasing preservatives, and cocamidopropyl betaine in washes are the eczema-relevant repeat offenders.",[36,321,322,325],{},[28,323,324],{},"Leave-on > rinse-off."," Spend your scrutiny on moisturizers and anything that stays on skin all day.",[20,327,329],{"id":328},"build-your-personal-evidence","Build your personal evidence",[10,331,332,333,336],{},"Generic \"eczema-safe\" lists only go so far, because ",[108,334,335],{},"your"," triggers are individual. Two habits compound over time:",[72,338,339,345],{},[36,340,341,344],{},[28,342,343],{},"Log reactions."," When a product flares you, record it — with its ingredient list. Over a few products, shared-ingredient patterns emerge (AllerNote's Trigger Detective automates that comparison across your scans).",[36,346,347,350],{},[28,348,349],{},"Ask about patch testing."," For lifelong eczema with product-triggered flares, dermatologists often recommend it — distinguishing \"my eczema flared\" from \"I'm allergic to something in this product\" changes everything about how you shop.",[10,352,353,354,356],{},"Once you have even a partial allergen list, checking products stops being research and becomes a habit: ",[14,355,247],{"href":118},", get a verdict against your list, move on with your day.",{"title":122,"searchDepth":123,"depth":123,"links":358},[359,360,361],{"id":276,"depth":123,"text":277},{"id":287,"depth":123,"text":288},{"id":328,"depth":123,"text":329},"Recommend a moisturizer that's safe for eczema and my allergens.",{},"/allerbot/answers/eczema-picking-safe-products","I've had eczema my whole life — how do I pick products that won't trigger a flare?",{"title":268,"description":273},"allerbot/answers/eczema-picking-safe-products","Eczema skin absorbs allergens more easily through its leaky barrier, so product choice matters double: prioritize short ingredient lists, skip fragrance in all forms, be suspicious of botanicals, and know that eczema patients develop contact allergies to their own skincare more often than average — patch testing is worth asking about.",[370,371,372],"eczema","sensitive skin","shopping","IO8PeOISSMRYIeMD1h-7zHMVOoEpeLEj76-q2h4xndw",{"id":375,"title":376,"body":377,"description":493,"extension":129,"followUp":494,"meta":495,"navigation":132,"path":214,"question":496,"seo":497,"stem":498,"summary":499,"tags":500,"updatedAt":142,"__hash__":504},"allerbotAnswers/allerbot/answers/eu-fragrance-allergen-rules-2026.md","The 2026 EU fragrance-allergen rules",{"type":7,"value":378,"toc":488},[379,385,389,407,411,414,438,450,454,478],[10,380,381,382,307],{},"If you have a fragrance allergy, this is the biggest labelling improvement since 2005 — and it lands on ",[28,383,384],{},"July 31, 2026",[20,386,388],{"id":387},"what-the-rule-says","What the rule says",[10,390,391,392,395,396,399,400,403,404,307],{},"Commission Regulation (EU) 2023/1545 expands the list of fragrance allergens that must be spelled out in a product's ingredient list — when present above 0.001% in leave-on products or 0.01% in rinse-off — from the familiar \"26 allergens\" era to roughly ",[28,393,394],{},"80 declarable entries",". Products ",[108,397,398],{},"placed on the EU market"," from July 31, 2026 must comply; stock already in the channel can be ",[108,401,402],{},"sold through"," until ",[28,405,406],{},"July 31, 2028",[20,408,410],{"id":409},"whats-newly-declarable","What's newly declarable",[10,412,413],{},"The additions include everyday substances most shoppers wouldn't clock as allergens:",[33,415,416,422,428],{},[36,417,418,421],{},[28,419,420],{},"Simple compounds:"," camphor, menthol, vanillin, benzaldehyde, terpineol, pinene",[36,423,424,427],{},[28,425,426],{},"Whole botanical oils and extracts:"," lavandin, ylang-ylang, lemongrass, jasmine, sandalwood, rose oil, clove, bergamot, patchouli",[36,429,430,433,434,437],{},[28,431,432],{},"Long-time restricted substances"," whose ",[108,435,436],{},"labelling"," duty is new, like Balsam of Peru and methyl salicylate",[10,439,440,441,445,446,449],{},"We measured the impact across the AllerNote catalog: in ",[14,442,444],{"href":443},"/research/eu-fragrance-allergens-2026","our analysis of 4,400+ products",", about one in five products already lists a declarable allergen by name — and ",[28,447,448],{},"most fragranced products still list only the umbrella word \"Parfum\"",", which is exactly what changes. Expect ingredient lists, especially on body lotions and perfumes, to visibly lengthen through 2026–2028.",[20,451,453],{"id":452},"what-it-means-for-you","What it means for you",[33,455,456,462,472],{},[36,457,458,461],{},[28,459,460],{},"Your patch-test results become more actionable."," If you're positive to linalool or ylang-ylang, the label will finally say so on newly-placed products — no more guessing what's inside \"Parfum\".",[36,463,464,467,468,471],{},[28,465,466],{},"The transition is long."," Until 2028, shelves hold a mix of old and new labels. An old-style label saying \"Parfum\" tells you ",[108,469,470],{},"nothing"," about whether your allergen is inside.",[36,473,474,477],{},[28,475,476],{},"Non-EU markets keep the old rules."," The US still requires only \"fragrance\" — so imported and travel purchases stay opaque.",[10,479,480,481,484,485,307],{},"During the transition, the practical bridge is checking products against your specific allergens including the components hiding inside umbrella terms — which is ",[14,482,483],{"href":118},"exactly what an AllerNote scan does",". And if you want the full dataset — per-allergen prevalence, category breakdowns, zero-allergen picks — it's free on ",[14,486,487],{"href":443},"the research page",{"title":122,"searchDepth":123,"depth":123,"links":489},[490,491,492],{"id":387,"depth":123,"text":388},{"id":409,"depth":123,"text":410},{"id":452,"depth":123,"text":453},"If you have a fragrance allergy, this is the biggest labelling improvement since 2005 — and it lands on July 31, 2026.","Which of the new EU fragrance allergens are in the products I use?",{},"What changes with the EU fragrance allergen labelling rules in 2026?",{"title":376,"description":493},"allerbot/answers/eu-fragrance-allergen-rules-2026","From July 31, 2026, cosmetics placed on the EU market must individually name ~80 fragrance allergens on the label — up from the historic 26 — instead of hiding them inside 'Parfum'. Newly declarable names include camphor, menthol, vanillin, and whole botanical oils like lavandin, ylang-ylang, and sandalwood. Existing stock can sell through until July 2028.",[501,502,503],"EU regulation","fragrance","labels","Htcyp5DxxJCpQ4jtVL2PUJCZ30yLmCYoB0G3FowkRYA",{"id":506,"title":507,"body":508,"description":512,"extension":129,"followUp":607,"meta":608,"navigation":132,"path":305,"question":609,"seo":610,"stem":611,"summary":612,"tags":613,"updatedAt":142,"__hash__":614},"allerbotAnswers/allerbot/answers/fragrance-free-vs-unscented.md","Is fragrance-free really allergen-free?",{"type":7,"value":509,"toc":602},[510,513,517,543,547,555,562,566,595],[10,511,512],{},"These two label claims trip up almost everyone with a fragrance allergy, because neither is a regulated guarantee.",[20,514,516],{"id":515},"what-the-labels-actually-mean","What the labels actually mean",[33,518,519,533],{},[36,520,521,524,525,528,529,532],{},[28,522,523],{},"\"Fragrance-free\""," conventionally means no ingredients were added ",[108,526,527],{},"for scent",". It does not mean the formula is free of fragrance ",[108,530,531],{},"allergens"," — botanical ingredients bring them along uninvited.",[36,534,535,538,539,542],{},[28,536,537],{},"\"Unscented\""," means the product has no perceptible smell. That can be achieved by adding a ",[28,540,541],{},"masking fragrance"," to neutralize the base odour — so an \"unscented\" product can legally contain fragrance compounds.",[20,544,546],{"id":545},"how-allergens-sneak-past-the-claim","How allergens sneak past the claim",[10,548,549,550,554],{},"The fragrance allergens dermatologists test for — limonene, linalool, citronellol, geraniol and friends — are natural components of essential oils and plant extracts. A \"fragrance-free\" moisturizer with lavender oil, citrus peel extract, or rose water can deliver the same allergens as a perfumed one. In our ",[14,551,553],{"href":552},"/research/allergens-in-cosmetics","catalog-wide analysis",", limonene and linalool are the two most common EU-declarable fragrance allergens across products — and they arrive through botanicals as often as through \"Parfum\".",[10,556,557,558,561],{},"There's also the umbrella-term problem in reverse: our ",[14,559,560],{"href":443},"EU labelling research"," found that most fragranced products still list just \"Parfum\" with no named allergens — which is why EU rules from July 2026 force ~80 fragrance allergens to be named individually. Labels are about to get more honest; until then, the claim on the front tells you less than the list on the back.",[20,563,565],{"id":564},"the-reliable-method","The reliable method",[72,567,568,571,578,589],{},[36,569,570],{},"Ignore front-of-pack claims entirely.",[36,572,573,574,577],{},"Read the INCI list for your specific allergens ",[28,575,576],{},"and their synonyms"," — limonene may appear as \"Citrus Aurantium Dulcis Peel Oil\".",[36,579,580,581,584,585,588],{},"Watch for botanicals: anything ending in ",[108,582,583],{},"oil",", ",[108,586,587],{},"extract",", or a Latin plant name deserves a second look if you're fragrance-allergic.",[36,590,591,592,594],{},"Or skip the memorization: ",[14,593,247],{"href":118}," and AllerNote checks every ingredient — including botanical sources of fragrance allergens — against your profile.",[10,596,597,598,601],{},"\"Fragrance-free\" is a decent ",[108,599,600],{},"starting"," filter. It's just not a substitute for reading the label — or having something read it for you.",{"title":122,"searchDepth":123,"depth":123,"links":603},[604,605,606],{"id":515,"depth":123,"text":516},{"id":545,"depth":123,"text":546},{"id":564,"depth":123,"text":565},"Check whether my 'fragrance-free' products actually contain fragrance allergens.",{},"Is 'fragrance-free' actually free of fragrance allergens?",{"title":507,"description":512},"allerbot/answers/fragrance-free-vs-unscented","Not necessarily. 'Fragrance-free' means no added perfume, but fragrance allergens like limonene or linalool can still enter a formula through essential oils and botanical extracts — and 'unscented' products may contain masking fragrance. The only reliable check is the ingredient list itself.",[502,503,372],"5ORS65xHIxzfactFeJM11iQuXvdcZ1LQxjNS28QEf4g",1784636722422]