Base. A serum foundation (slip, thin, flexible, usually a pump) or a balm stick (rich, no liquid phase, one-handed). Avoid full-coverage matte longwear liquids, which fail on properties one, two and three at once.
Concealer. Creamy, hydrating, light-to-medium, matched to your own tone. Liquid under the eye where the skin flexes; cream on a spot where it does not. Avoid full-coverage matte — it is the most common cause of under-eye creasing.
Finish. Satin or demi-matte. A dewy finish reflects light out of every dip in the surface and emphasizes texture; a flat matte needs a rigid film and emphasizes dryness. Satin is the safe middle and almost every pick on this site sits there.
Powder. Finely milled, used only where you shine, pressed rather than swept. Milling is the only specification that matters, and a coarse powder in a line makes the line read sharper the moment it lands.
Mascara. Tubing, because it does not flake, does not smudge, and removes with warm water rather than solvent and friction — which protects a thinning lash line over years.
Brows. A gel for one-stroke definition, or a fine pencil drawing individual hairs with gaps between them. Never a block of color, and never warm brown against gray hair.
Eyes. Matte or satin, never shimmer on a crepey lid. Liner at the lash base rather than on the lid, where a hood hides it.