Instant Age Rewind Eraser Dark Circle Treatment Concealer

The base most products are built on. It carries the other ingredients and has no safety concern.

A lightweight, volatile silicone that gives serums and primers their silky slip and quick-evaporating finish. Human safety data are reassuring; the EU restriction on this ingredient in rinse-off products is about environmental persistence in waterways, not skin safety.

A silicone that gives a smooth, soft feel and helps hold water in the skin. Inert and well studied.

A lightweight hydrocarbon that gives formulas a smooth, silky feel. Used in color cosmetics and sunscreens. Well tolerated and inert.

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.

A crosslinked silicone polymer that creates a velvety texture in primers and powders. The crosslinked structure does not change its safety profile, and it is inert and well tolerated.

A synthetic polymer used to impart silky texture and film-forming properties in skincare. Nylon particles remain on the surface and do not penetrate or absorb systemically, with a long history of safe use in cosmetics.

A quaternized clay mineral used to thicken and suspend products. CIR found it safe as used, though the mineral base means trace amounts of inhalable silica particles exist if the powder form is aerosolized. It is well tolerated in leave-on and rinse-off cosmetics when formulated properly.

A silicone emulsifier combining polyethylene glycol and dimethicone to help blend water and oil phases in serums and primers. Limited but consistent data support its safety in cosmetic formulations.

A silicone-based conditioning agent that adds smoothness and soft feel to formulas. Silicones in cosmetics are not absorbed by the skin and rinse cleanly, making them well-tolerated for most users.

A widely used preservative, safe at the legal limit of 1% or less. Often the "paraben-free" replacement.

Ordinary salt, used in surfactant-based products like shampoos and body washes to adjust viscosity by interacting with the surfactant micelles. It has no meaningful toxicity concern at cosmetic use levels; the main practical downside is that too much can make a formula feel less mild.

A polyol ester emulsifier that stabilizes water-in-oil and oil-in-water emulsions with minimal irritation. Like other polyglyceryl esters, it is valued for its mildness and is used across a range of skincare and color cosmetics.

Caprylyl glycol is a plant-derived humectant that also has mild antimicrobial properties, so it is commonly paired with other preservatives to allow lower overall preservative levels. Available data do not point to meaningful irritation or sensitization concerns at typical use levels.

An amino acid derived emulsifier made from stearic acid and glutamic acid that is increasingly used in natural and clean formulations. It is mild, biodegradable, and presents no known safety concerns for cosmetic use.

A glycerin derivative used as a skin conditioner and preservative booster, often paired with phenoxyethanol to allow lower total preservative levels. It has a low irritation and sensitization profile in safety reviews.

A preservative that keeps products free of mold and bacteria. Reviewed repeatedly and considered safe at the low levels used.

Chlorphenesin is a preservative subject to an EU maximum concentration limit and has been linked to contact dermatitis in a minority of users, particularly with repeated exposure. Most people tolerate it at the regulated use level without issue.

An inert mineral powder used as a filler and white base for color cosmetics. It is not the same as the antiperspirant aluminum compounds that trigger health concerns. Well tolerated and FDA-approved for cosmetic use.

Palmitoyl Oligopeptide attaches a fatty palmitic acid tail to a short synthetic peptide, a design used in anti-aging serums to signal skin cells, including as one component of the widely marketed Matrixyl 3000 complex. CIR's review of palmitoyl oligopeptides as a class did not identify a safety signal, and as a large synthetic peptide it is not expected to cross intact skin in meaningful amounts. Independently published clinical evidence on how well any single palmitoyl peptide performs is thinner than the marketing built around it.

A peptide lipid that mimics collagen fragments and signals skin cells to increase collagen production while reducing inflammation. Established in anti-aging formulas with a consistent safety record.