Supplement Label Decoder
Ratings come from our published ingredient knowledge base — the same data behind every ingredient page. Not medical advice.
Skip the typing — scan the barcode
The GoodSupp app decodes the full label from a single scan: every active and inactive ingredient rated, plus dosage analysis and the brand's public record.
How to read a supplement label
Every supplement label has two ingredient zones. The Supplement Facts panel lists active ingredients with amounts — the nutrients you're buying. Below it, the "Other Ingredients" line lists everything else: capsule materials, fillers, binders, anti-caking agents, sweeteners, colorings, and preservatives.
Most other ingredients are harmless — cellulose, rice flour, and vegetable capsules are there for entirely mundane manufacturing reasons. But this line is also where the flagged additives hide: artificial colorings that serve no nutritional purpose, controversial whitening agents, and sweeteners some people prefer to avoid. Of the 1,752 ingredients in our knowledge base, 121 are flagged as concerning, each with a severity level and published reasoning on its ingredient page.
This decoder matches your pasted list against that knowledge base and tells you what each ingredient is, why manufacturers use it, and whether it's flagged — the same analysis the GoodSupp scanner runs on a full product.
Common questions
What do "other ingredients" on a supplement label mean?
Everything in the product besides the active nutrients: capsule materials, fillers, binders, flow agents, sweeteners, colorings, and preservatives. They're listed separately from the Supplement Facts panel — and they're where most flagged additives appear.
Which supplement additives are most commonly flagged?
Titanium dioxide (a whitening agent), artificial colorings such as FD&C dyes, some artificial sweeteners, and certain preservatives. Common excipients like cellulose, rice flour, and magnesium stearate are generally recognized as safe at the amounts used.
Is magnesium stearate bad for you?
It's a flow agent used in tiny amounts to keep powders from sticking to machinery. At supplement quantities it's generally considered safe — the concerns circulating online come from studies using far larger doses than any supplement contains.
Why do supplements contain fillers at all?
Many actives are dosed in milligrams or micrograms — too little to form a capsule on its own. Fillers add bulk, binders hold tablets together, flow agents keep the machines running. The question isn't whether a product has excipients, but which ones.
Is this medical advice?
No. The decoder reports what each ingredient is, why it's used, and whether our knowledge base flags it. Always consult a healthcare provider about your specific situation.