Lychee rules
The app applies its own processing, ingredient, additive and nutrition logic. Food and cosmetics have separate models.
Data sources
Know what the source can actually tell you.
Lychee’s barcode lookups use Open Food Facts and Open Beauty Facts. Label photos use OCR; scores use Lychee’s own logic. Public scientific and regulatory references provide context, not a live laboratory test.
Free download · Optional Premium · iOS & Android
Direct product data
Two open databases, different product categories.
Open Food FactsFood barcode and product-label data. Collaborative records can be incomplete, outdated or different from the package in your hand.Open Beauty FactsCosmetic barcode and product-label data. Product coverage and ingredient completeness vary.
Contributed records can contain errors or incomplete fields. Formulas and regional versions may differ. Check the current packaging, and review the database’s attribution and licensing information when reusing its data.
The analysis layer
Product data is not the score.
Ingredient dictionaries
Recognized names, aliases, functions and concerns help interpret food and cosmetic labels. Unknown ingredients remain gaps.
Optional AI
Generated explanations can help translate a label. They should be checked against inputs and primary sources.
External reference resources
Useful background, with a specific role.
The following links help readers check scientific and regulatory context. They are not a claim that Lychee queries every database live on each scan, is endorsed by these organizations, or has tested every product.
EFSA food additivesEU scientific assessment context for additives.FDA food ingredients and packagingUS additive and ingredient resources.FDA cosmeticsUS cosmetic product and ingredient information.European Commission CosIngCosmetic ingredient names and regulatory references; a database entry does not by itself establish approval for every use.IARC MonographsHazard classification context, which is different from risk at a specific dose.
Evidence boundaries
Keep a label, an estimate and a test separate.
An ingredient list does not report heavy-metal or microplastic concentrations. A category-based estimate is not a measurement. A published lab test relates to the tested product and sample; it should not be extended to every formula, batch or similar product.
Lychee’s methodology explains how incomplete inputs and ingredient coverage affect results.
Common questions
Before you scan.
Where does Lychee get product data?
Food barcode lookup uses Open Food Facts; cosmetic barcode lookup uses Open Beauty Facts. Label photos use OCR. Lychee applies its own scoring logic and ingredient dictionaries to available information.
Does Lychee use AI to calculate every score?
The food and cosmetic scores use scoring logic and ingredient dictionaries. Optional AI assistance adds explanations and analysis; it is not a laboratory test or a guarantee that a label is accurate.
Can Lychee detect heavy metals or microplastics?
A barcode or label photo cannot measure contaminants. Where Lychee presents estimates or published lab results, those are different forms of evidence. Check the source, tested product, date and limits before drawing a conclusion.
Keep exploring
More detail, when you need it.
Get Lychee
Start with your next label.
Food and beauty ingredient context in your pocket.