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Mica in skincare
Mineral shimmer/pearlescence in makeup; safe topically but avoid inhalation of loose powders; ethical sourcing concerns.
Used in AM makeup products (foundation, eyeshadow, highlighter, blush) and PM settings if wearing makeup. Primary safety concern is inhalation during professional application of loose powder mica. Use in well-ventilated areas. Topical skin contact is safe. Ethical sourcing (child labor in mica mining) is a separate supply chain concern.
What it is
Mica (phyllosilicate mineral, potassium aluminum silicate) is a naturally occurring mineral ground into fine platelets that create the pearlescent, shimmering, and light-reflecting effects in makeup products. Eyeshadow, highlighter, foundation, blush, bronzer, and body shimmer. Inert, non-reactive, and non-allergenic in topical cosmetic use. CIR Expert Panel has concluded mica is safe as cosmetically used. Two concerns: (1) Inhalation risk from loose powder application. Fine mica particles can cause lung irritation with chronic occupational exposure; use caution with loose powders and avoid spray application near face; (2) Supply chain ethics. Approximately 60% of global mica is mined in India and Madagascar using child labor; look for brands using synthetic mica (fluorophlogopite) or responsibly sourced natural mica.
The facts
| Category | Mineral Pigment / Pearlescent Agent |
| Typical use | Morning and evening |
| Concentration YARAI treats as a full dose | 100% |
Why the amount matters, not just the presence
Most ingredient checkers tell you whether something is in the bottle. That is a smaller question than it sounds. Mica at 100% and mica at a trace level are not the same ingredient in any way that affects your skin.
An ingredient list is ordered by quantity, so position carries real information. YARAI reads that position and scores accordingly, which is why the same ingredient can land differently in two different products.
The honest limit: a list gives order, not percentages. Estimating concentration from position is an estimate. It is a better estimate than ignoring position, and it is still an estimate. We would rather tell you that than let a number look more certain than it is.
Common questions
What does mica do in a skincare product?
Mineral shimmer/pearlescence in makeup; safe topically but avoid inhalation of loose powders; ethical sourcing concerns.
How much mica should a product contain?
YARAI treats 100% as a full dose for this ingredient. Below that, the ingredient is present but is scored as contributing less. An ingredient list gives you the order of ingredients, not their percentages, so this is an estimate read from position rather than a measurement.
When should I use mica?
Used in AM makeup products (foundation, eyeshadow, highlighter, blush) and PM settings if wearing makeup. Primary safety concern is inhalation during professional application of loose powder mica. Use in well-ventilated areas. Topical skin contact is safe. Ethical sourcing (child labor in mica mining) is a separate supply chain concern.
Check your own products
Point your camera at a product. YARAI identifies it from the label, finds that product's full ingredient list from published sources, and scores it. No barcode and no box needed, which is how it handles imported and small-brand products.
Concern level, category and thresholds on this page are read directly from the same data the YARAI app scores with, so this page and the app cannot disagree. EU figures cite Regulation (EC) No 1223/2009. Last built 2026-09-09. Nothing here is medical advice.