Wedge sponges

A wedge is the plainest tool in the kit: a triangle of dense, fine-pored foam, usually cut from a round or a block and sold by the bag. Its two flat faces press foundation or cream onto the skin, its point reaches the inner corner of the eye and the sides of the nose, and its long edges do the jobs no other tool does as well: cleaning up under a winged liner, sharpening a lip line, softening the edge of contour.

Beside a blending sponge it is firmer and denser, with smaller pores, and it swells little when wet, so it lays down more of what it picks up. Used dry it gives fuller coverage; used damp, a sheerer layer. And it is cheap enough to treat as disposable: one wedge, one face.

The standard wedge is about the length of a finger, cut from a block, with two sharp corners and a point. Jumbo wedges give a broader flat face for foundation over the whole face; small ones are easier around the eyes and for detail. Some are sold as a round cut into six, which leaves each wedge with one curved side to roll over the cheek, and a few are single flat pads cut to a rounded triangle, such as Koh Gen Do’s, made to be held in the palm and pressed rather than dabbed.

Most are white or cream, which shows exactly when one is spent. Charcoal-grey and coloured wedges hide their stains, so judge those by feel: a wedge that has gone stiff or rough at the edge is finished.

Wedges come in two families. Latex wedges are cut from latex foam: Piccasso sells its round of six as hydrophilic latex that turns soft and bouncy when damp. Latex-free wedges are the rest, and most bags on sale now are labelled that way. Swisspers, ForPro and Ulta sell theirs as latex-free, and Mehron sells its non-latex wedge as suited to all skin types, sensitive skin included.

The difference matters to anyone allergic to latex: the FDA puts allergy to natural rubber latex at roughly 1 to 6 per cent of the general population.^[1] If you are allergic, or unsure, buy a bag that says latex-free, and stop using any sponge that makes the skin itch, redden or swell.

For coverage, use the wedge dry. Dot foundation on the back of the hand, pick it up on a flat face and press it onto the skin, then stipple and roll outward; a dry wedge drags if you wipe it. For a sheerer layer, dampen it and squeeze it out hard in a towel. The latex round is sold for both: dry for a matte finish, damp for a dewy one.

Then use the edges. Run the long edge along the lower lash line to lift fallen shadow, sweep it outward under a winged liner to sharpen the flick, press it along the outline of the lips after lipstick, and soften the hard edge of cream contour with the flat. Keep one corner for each product, foundation on one and concealer on another, and cut a big wedge in half with scissors when you want a fresh, sharp edge.

A wedge’s fine pores are hard to rinse clean, and used sponges are not clean things. A UK study that cultured donated makeup found the sponges the most contaminated items tested, most of them never cleaned.^[2] Some makers sell their wedges as reusable: Swisspers calls its jumbo wedges washable, and Daiso says its wedges may be reused but should be replaced once the surface is damaged.

Treat that as the limit, not the plan. Wash a reusable wedge straight after use in mild soap and warm water, squeeze it out in a towel and let it dry in the open air. Throw it away when it is stained through, crumbling at the edges or has sat damp in a bag, and never use one wedge on two faces.

Make-up that had to be applied wet brought the sponge to the dressing table. Marinello’s Phantom Powder cakes of 1914 were packed with one,^[3] and in 1926 Dubarry sold a powder cream, Peach Bloom, to be applied with a moistened rubber sponge that turned it into a liquid powder on the face; its box was oxidised aluminium, so the water would not rust it.^[4] A Max Factor lecture of 1940 said its Pan-Cake was applied “by using a moistened sponge or cotton”.^[3]

The wedge’s edge had its advocates early. Harriet Hubbard Ayer, which sold packets of foam-rubber sponges, told readers in 1953 that “a sponge’s corner easily dots on and evenly spreads shadow” and that a pencilled brow could be softened with a sponge’s edge, the jobs a wedge is still bought for. The idea did not catch on at the time; brushes and puffs were easier to use and fitted inside compacts.^[5]

When the bagged triangle became the standard cheap sponge is not recorded in any source we found, and we have not guessed. By the time Rea Ann Silva’s reusable egg arrived in the early 2000s, the museum that holds her prototypes notes, sponges were typically used a few times and thrown away.^[6] The bag of wedges is that older habit, and the edge is still the reason to keep one in the kit.