Caramel

Caramel (caramel color) is primarily a coloring agent used at low concentrations and is generally well-tolerated on skin, with irritation uncommon in routine cosmetic use. However, it is a complex mixture formed by sugar heating and can contain reactive byproducts/impurities depending on manufacturing, so mild irritant or contact reactions are possible in highly reactive or eczema-prone individuals. Given the variability and my safety-first approach for compromised barriers, I rate it as gentle but not inert. Safety Notes: Caramel (caramel color) is most often used as a colorant in skincare, where it appears at trace-to-low levels (about 0.001–0.1%) in leave-on lotions/serums and rinse-off cleansers to tint product appearance without staining skin. Higher levels are observed in strongly tinted body washes, scrubs, and self-tan/bronzing or glow products where caramel contributes visible brown tone, commonly ~0.5–3% and occasionally up to ~5% in consumer OTC formulas. No specific EU/FDA cosmetic maximum is generally set for caramel color itself, so practical limits are driven by shade intensity, stability, and potential for unwanted coloration/transfer.