La chimie, distillée en lectures brèves
La chimie que nos chimistes pratiquent chaque jour : chaque guide est construit à partir des données de notre catalogue, avec les ingrédients réels présentés à côté.
72 guides · 11 thèmes
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Why Ingredient Sourcing Is a Formulation Decision — Not Just a Procurement Decision
In personal care manufacturing, procurement is often discussed through the language of price, availability and lead time.
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Before the Shade: The Chemistry and Role of Hair-Dye Intermediates
The consumer sees a shade. The formulator sees a chemical system.
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Shade Inclusivity Starts in the Formulation Lab — Not the Marketing Meeting
Inclusivity in cosmetics is often communicated through advertising. It is visible in campaign casting, product photography, shade names and retail displays.
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R&D Depth & Ingredient Portfolio: From Concept to Commercialisation
In specialty ingredients, a strong product portfolio is not created by sourcing compounds and placing them into a catalogue.
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Speed and concept-to-commercial: how an ingredient reaches your product line
The seven stages an ingredient passes through before launch, from concept brief and cost-in-use to sampling, stability, documentation, RFQ and vendor approval.
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Quality, standards & science: the discipline behind every batch
How SOPs, change control, OOS and OOT investigations, CAPA, vendor audits, complaint handling and annual reviews build quality into every batch.
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What "REACH registered" tells you about an ingredient
Registration versus pre-registration versus UK DUINS, what tonnage bands mean commercially, and how a buyer should read a supplier's REACH claims.
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Why peptides ship by the gram: dosage, potency and pack maths
Cosmetic peptides work at fractions of a percent; here is what that means for pack sizes, batch economics and how far one small pack really goes.
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How to read a CI number: the colourant's passport
What the five-digit Colour Index number encodes, why EU regulators reference it over trade names, and how organic and inorganic ranges sort at a glance.
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UV-A vs UV-B filters: how to build a broad-spectrum sunscreen
What the two UV bands do to skin, why a compliant SPF needs both covered, and how formulators combine oil-soluble, water-soluble and mineral filters to get there.
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5 reasons for not neglecting sun protection
Five evidence-backed reasons daily sun protection is worth the two minutes: cancer risk, pigmentation, sunburn, photo-ageing and barrier support.
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A brief study on Sunbest-BMT (bemotrizinol/BEMT) sunscreen
Technical profile of Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine: dual absorption peaks, photostability data, HPLC method, safety studies and market approvals.
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A brief study on Sunbest-HEB (iscotrizinol)
Full technical profile of Diethylhexyl Butamido Triazone: structure, CAS, absorption band, solubility, use levels, toxicology and regulatory status by market.
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A good sunscreen protects in multiple ways
Sunburn, solar lentigines, photo-ageing and tanning are four different UV injuries with different mechanisms, and one broad-spectrum product addresses all of them.
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An inactive pharmaceutical ingredient is not a passive ingredient
What excipients do in a medicine (binders, disintegrants, coatings, preservatives, colourants) and why "inactive" describes the label, not the role.
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Antioxidant skin protection: health benefits of active ingredients
How antioxidants work on skin, which ones have evidence behind them, and why they complement sun protection rather than replacing it.
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Application techniques for sunscreens
How much sunscreen to use, when to apply it, and why under-application is the single biggest reason people get less protection than the label promises.
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Aromatic chemistry: an introduction
What makes a ring aromatic, Hückel's 4n+2 rule, how aromatic compounds behave, and why almost every organic UV filter is built on an aromatic core.
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Basics of sun protection
The three UV bands, what overexposure does to skin, eyes and immune function, and the practical measures that reduce dose: clothing, timing, shade and SPF 30+.
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Broad-spectrum protection with sunscreens
What the broad-spectrum claim is tested against, how UV-A and UV-B damage skin by different mechanisms, and why a high SPF alone is not enough.
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CC, BB and DD creams: cosmetic product components and categories
The main cosmetic categories, the functional ingredients every formula needs, and what distinguishes BB, CC and DD creams from one another.
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Chemical vs physical sunscreens
Organic and inorganic UV filters compared on protection, photostability, tolerance and feel, plus why the "physical filters reflect light" line is mostly a myth.
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Choose cosmetics based on the right active ingredients
A concern-by-concern guide to matching actives to skin problems, plus how to patch test properly and why concentration matters as much as the ingredient.
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Cosmetic active ingredient supplier: an introduction
What an ingredient supplier does beyond shipping drums: specification, documentation, regulatory status, technical support and supply continuity.
Explorer par thème
Chaque guide est classé selon les sujets qu'il traite réellement, de sorte que la page d'un thème rassemble tout le fil de ce que nous avons écrit à son propos.
Formules de départ
Des points de départ théoriques, élaborés sur le papier par nos chimistes à partir du catalogue : phases, INCI et niveaux d'emploi présentés pour que vous puissiez voir la forme d'une formule avant de demander le dossier complet de la méthode.
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