HelloGem

A plugin for ChatGPT

Know what an ingredient is, what it does, and who says so.

Ask ChatGPT about a name on an ingredient label and get a plain answer built from named sources, with links to what each one says.

Get HelloGem in ChatGPT How to use it

Free, and published in ChatGPT by Omnishades Worldwide LTD.

You ask: What does glycerin do in skincare?

Glycerin

Also listed as Glycerine

NIVEA · skincare brand Calls it a naturally occurring alcohol compound.

Paula’s Choice · skincare brand Says it helps skin retain moisture.

INKEEDecoder · ingredient website Lists it as a moisturizer/humectant.

ChEBI · chemistry reference Lists two chemical roles: solvent and detergent.

Illustrated from one real HelloGem result for “glycerin”. Quoted words are each source’s own, with a link to the full page: NIVEA · Paula’s Choice · INKEEDecoder · ChEBI CHEBI:17754
  • reference database
  • a source, in its own words

What you can ask

Ask the way you’d read a label.

One ingredient at a time, by its INCI, common or chemical name.

  • What does glycerin do in skincare?
  • What is Nonapeptide-9 on an ingredient label?
  • Is nicotinamide the same ingredient as niacinamide?
  • How do different sources describe niacinamide?

How it answers

One explanation you can trace back.

  1. What it is, then what it does

    Many names on a label mean little until you know what they are. CosIng, the EU’s cosmetic ingredient database, defines many ingredients by their origin or composition, and lists the functions they serve in cosmetics. HelloGem keeps the two apart, so a definition never reads as an effect.

    Nonapeptide-9: CosIng defines it as a synthetic peptide consisting of alanine, arginine, glutamic acid, isoleucine, and leucine, and lists its cosmetic function as skin conditioning.

  2. Every statement keeps its speaker

    Reference databases supply the facts HelloGem accepts: cosmetic functions from CosIng and chemical roles from ChEBI. Skincare brands such as Paula’s Choice and NIVEA, and INKEEDecoder, an editorial ingredient website, describe ingredients in their own words. Each statement stays with its source, hedges included, so you can see where sources agree and where only one speaks. Agreement isn’t proof.

    Niacinamide: Paula’s Choice says it improves the appearance of enlarged pores.

  3. Function labels, clearly credited

    COSMILE Europe, an industry reference, lists function labels and the product types an ingredient appears in. It bases its labels on CosIng, so HelloGem shows them as COSMILE’s, leaves out any that CosIng already gives for the ingredient, and never counts them as agreement. Product types are where an ingredient appears, not what it does.

    PEG-10 Dimethicone/Vinyl Dimethicone Crosspolymer: COSMILE Europe lists it as light stabilizer and viscosity controlling.

  4. Names are exact. Related isn’t the same.

    HelloGem matches the exact names it lists and doesn’t guess at misspellings. Terms a source lists alongside an ingredient stay related terms; they aren’t treated as other names for it.

    Nicotinamide is another name for niacinamide. Vitamin B3 appears as a related term.

  5. A few words, then the full page

    HelloGem quotes a few words from each source page, or a short definition whole, and links to the rest. When a page lists references, that’s the source’s bibliography, not research HelloGem has reviewed. Each quote also records when HelloGem read the page, not when the source wrote or reviewed it.

    Tocopherol: Paula’s Choice calls it the name of one of four forms of vitamin E, and lists 4 references on its page.

Coverage

What’s in this release.

185,719 ingredient identities
Each can be looked up by an exact INCI, common or chemical name.
1,533 described by a source
Ingredients that Paula’s Choice, NIVEA or INKEEDecoder describes, or for which COSMILE Europe lists product types.
5,050 with a CosIng definition
A short definition of what the ingredient is, quoted whole.
9,335 with CosIng cosmetic functions
Functions listed in the European Commission’s CosIng database.
1,559 with COSMILE function labels
Labels COSMILE Europe bases on CosIng, shown where CosIng’s own function isn’t.
2,815 with chemical roles
Roles listed in ChEBI or inferred by HelloGem from CosIng functions; each result labels the difference.

The figures overlap: one ingredient can count in several, so they don’t add up. Not every ingredient has every source, and COSMILE Europe and CosIng were captured only in part, so many ingredients have neither yet.

Each identity currently has the curation status “provisional”. Each quote records when HelloGem read its page; preparing a release doesn’t refresh the sources.

Release hellogem-a5089734f27e9f9a · release manifest

Outside its scope

  • Judging safety, effectiveness or personal suitability, or advising on concentrations or formulas.
  • Saying whether an ingredient is permitted anywhere. A CosIng listing isn’t regulatory approval.
  • Analysing whole ingredient lists or recommending products.
  • Standing in for the sources. For decisions that matter, read the linked pages.

Get started

Add HelloGem to ChatGPT.

Install it once, then bring it into any chat where you’re reading a label.

  1. Open HelloGem in ChatGPT and choose Install plugin. If it’s already installed, you’re ready for the next step.

  2. Choose Try in chat, then ask about one ingredient, for example What does glycerin do in skincare? In another chat, use + to find and select HelloGem for your message.

  3. Read who says what. HelloGem gives ChatGPT each statement with its source and a link, and answers usually end with a Report an issue link.

First time? Try five ingredients in about 15 minutes.

Select HelloGem when you want its sources in the answer. If the listing says it’s unavailable, check the account or workspace you’re using in ChatGPT.

Building your own agent? The MCP endpoint and response format are in the developer notes.

Feedback and privacy

Something looks wrong? Say so from the answer.

Every HelloGem result has its own Report an issue link, and answers usually end with it; if one doesn’t, ask ChatGPT for it. Your note arrives linked to the exact HelloGem result behind that answer. If the problem is in how ChatGPT worded it, paste that part. If a result couldn’t be saved, you can still tell us what happened.

No HelloGem account needed. Requests, results and reports are stored privately and expire after 365 days, so please keep personal and health details out of your questions. This site has no advertising trackers or analytics. Our hosting providers may set security cookies, for example when the walkthrough video loads.

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