Products with no directly-named nickel compound (e.g. Nickel Sulfate) in their ingredient list.
Important limitation: nickel is almost never itself a listed cosmetic ingredient — it's usually a trace metal contaminant from packaging, applicators, or mineral pigments, which an ingredient list can't reveal. This tag reflects the ingredient list only, not independent metal-contamination testing.
How this is determined: a starting, name-list-based check against each product’s own
printed ingredient list — not independent lab or allergen testing. See the note above for this specific
claim’s exact criteria and known limits.