Albumen

Albumen is another word for egg white, generally meaning that of a hen’s egg. It is worth separating from the similarly spelled albumin, which is the principal protein found in human blood, though confusingly albumin-type proteins are also present in egg whites.

Most of its uses are culinary. In cosmetics it appears occasionally in masks and setting products, and it has a long life as a home remedy: applying egg white to the face produces a temporary tightening sensation as it dries, which is where its reputation comes from.

That tightening is a physical effect rather than a change to the skin. As the proteins dry they contract and form a film, pulling gently on the surface. It looks and feels like something is happening, but it washes off with the film and nothing lasting has occurred.

There are two reasons to be careful with it. Egg proteins, including ovomucoid and ovalbumin, are among the more significant food allergens, and applying them to skin is not risk-free for anyone with an egg allergy. Raw egg also carries a contamination risk that a formulated cosmetic does not.

The more promising direction is laboratory-derived. Specific peptides and proteins isolated from egg white are an active area of research for their antioxidant and skin-supporting properties, and these purified fractions are a very different proposition from a raw egg applied at home.

Egg white is roughly ninety percent water and ten percent protein. When it is spread on skin and allowed to dry, the water evaporates and the proteins form a thin, slightly rigid film that shrinks as it sets. That shrinkage is what creates the familiar tight, lifted sensation, and it is also what makes pores look temporarily less obvious. It is a surface film effect and it ends when the film is removed.

The proteins themselves do not penetrate the skin in any meaningful way. Protein molecules are far too large to pass the skin barrier, which is the same reason collagen applied to the face cannot become collagen in the skin. What can be useful are the much smaller fragments obtained by breaking those proteins down under controlled conditions, and it is these isolated peptides that research is interested in.

The drying process can also leave skin feeling tight in a less welcome sense, particularly if it is already dry, and the contraction can be uncomfortable on reactive skin. Combined with the allergen question, this is why formulated products with defined ingredients are a more sensible route than the kitchen version.

Egg white is one of the better-known home remedies and one of the less useful ones.

• Avoid it entirely if you have an egg allergy. This is the most important point. Applying a known allergen to skin is not a small risk.
• Do not expect anything lasting. The tightening effect disappears the moment the film is washed away.
• A clay or starch mask will give a comparable temporary smoothing effect with none of the allergen or contamination concerns.
• For pores that look enlarged, salicylic acid, niacinamide or a retinoid will do considerably more over time than any tightening mask.
• If a formulated product lists it, that is a different matter to a raw egg, and the manufacturer will have addressed stability and preservation.
• Patch test anything containing egg-derived ingredients, particularly if you have food allergies of any kind.