Gregor Halliday
Ingredients desk
Ingredient Context · Claim Reading · Culture desk
About
Gregor Halliday covers ingredients and the claims attached to them. He works from supplier documentation, published studies, and label filings, and stays explicit about the distance between a laboratory result and a bathroom shelf.
Published work
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Brewing Up Biotech: Tea Catechins and Their Anti-Aging Impact
EGCG is tea's most potent anti-aging catechin and its most unstable one, and biotech fermentation and encapsulation are emerging as the fix.
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Decléor's Return Comes With a Formula Qualifier
Decléor is back at UK retail after L'Oréal stopped commercialising it and sold it to the newly created Cospal. The current brand says only some formulas have historical continuity, so the relaunch does not establish that the old range returned unchanged.
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In Chicago, 'Korean Beauty Store' Means Two Different Things
Guides to Chicago's Korean beauty store scene point shoppers toward skincare boutiques, but the phrase also covers a much older, larger network: Korean-owned beauty supply stores built on the 1970s wig and hair-extension trade and sustained almost entirely by Black customers. Chicago's own business records show how little the two overlap.
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Four Passes Is Not a Sunscreen Stick Dose
An SPF label measures a controlled sunscreen film, while a pass measures an inconsistent gesture. The available application study found far less stick product reached skin than the mass used for SPF testing.
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Hello Bello's Baby and Kids SPF 50 Labels Match
Hello Bello's current Baby and Kids Mineral Sunscreen Lotions SPF 50 list 23% zinc oxide and the same inactive ingredients. The age words distinguish their presentation, not the formulas disclosed on their labels.
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A Familiar Bacterium Beats Kao's Preservation System Again
Kao USA's recall of Oribe Serene Scalp Densifying Shampoo for Pluralibacter gergoviae is the second time in four years the same bacterium has beaten the company's preservation system, part of a wider pattern that also caught Kenvue and Tesco within the past year.
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Korea's Melanoma Rise Traces to a Biopsy Tool, Not the Sun
South Korea's melanoma incidence is climbing faster than almost any country on record, but the country's own registry researchers trace most of that rise to wider biopsy use and screening, not sun exposure, and most Korean cases turn up on skin the sun barely touches.
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JD.com's Korea Buying Desk Is Now Permanent
JD Group's August 12 briefing with KOTRA produced just nine signed contracts worth 1.5 million dollars, but the change that matters happened earlier this year, when the Chinese platform swapped occasional matchmaking events for a standing legal buying office in Korea.
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Solabia's New Lab Used to Share a Parent With Dr.G
Solabia's newly completed purchase of Mibelle Biochemistry, the Swiss lab behind the original apple stem cell active, is the second sale in sixteen months to break up a Swiss group that also once owned Dr.G, the Korean dermocosmetic brand L'Oréal acquired in a separate deal.
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The Sunscreen Blind Spot Predates the Stick
The center-of-nose and under-brow gaps a UV camera found on sunscreen sticks sit in the same eye-and-nose-bridge zone a 2017 peer-reviewed UV-photography study already found missed with cream and spray, at rates the format did not change.
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An INCI Name Cannot Reproduce This Micellar Water
The formula's 5% sodium cocoyl glutamate can mean about 1.2% active surfactant when its suggested liquid grade is used. A glucoside substituted at the same weight can more than double that active load, showing why an INCI name is not a complete raw-material specification.
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Eucerin's 98% Claims Do Not Measure the Same Thing
Eucerin's results panel combines consumer impressions, self-assessment, clinical grading and an elasticity score as if they were comparable findings. It supports a useful signal about texture, but not a single controlled, product-level anti-ageing effect.
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Kojic Acid Just Hit a Ceiling in Europe. The Others Haven't.
The EU capped kojic acid and alpha arbutin in 2024 over safety concerns, azelaic acid is unrestricted in Europe but split between prescription and cosmetic strength in the US, and tranexamic acid has no concentration limit anywhere because no regulator has formally reviewed its topical use. The four ingredients most often marketed together for pigmentation carry four unequal levels of regulatory scrutiny.
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Body Lotion's Retinol Limit Is About Surface Area, Not Strength
A new EU rule caps retinol in body lotion at a sixth of the concentration allowed in face cream, and the regulator's own exposure math shows why: spread over more skin, the diluted version still lands close to the same absorbed dose.
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Microdermabrasion Has a Legal Definition. Facial Doesn't.
Microdermabrasion sits inside an FDA device classification with an effect clinical studies measure in microns of skin removed, while facial has no such definition: what a provider can legally do inside one is set state by state, which is why the two were never comparable at the same level to begin with.
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South Africa's Derma X Pro Shelf Is a Partial Set
The five Derma X Pro products listed by a South African retailer do not reproduce the matched three-step collections P&G introduced in Europe in 2022. This is a local assortment of an established platform, so overseas regimen claims cannot simply be assigned to every product on the local shelf.