Reading labels when you avoid animal ingredients

Compare two words that appear on packaging.

“Gluten-free” has a legal definition. In the US it means the food contains less than 20 parts per million of gluten, and a manufacturer using it has to meet that.

“Vegan” has no equivalent. In most markets it is not defined in law at all. Anyone can print it, and nobody has to meet a threshold to do so.

That asymmetry is the whole difficulty. It is not that manufacturers are lying. It is that the word is doing no work, so you are left reading the ingredient list yourself, and the ingredient list was not designed to help you with this particular question.

Why the ingredient list is not enough

Allergen rules make certain things obvious. Milk has to be declared, so Casein cannot hide, even inside a product marked “non-dairy”.

Nothing equivalent exists for animal origin in general. So the ingredients that catch people are precisely the ones whose names say nothing about where they came from:

Gelatin is collagen from pig or cow. The name is honest but the products are unexpected, because gelatin sets a yoghurt and a fruit sweet as readily as it sets a jelly.

Shellac is secreted by an insect and is usually not called shellac. On a sweet it is “confectioner’s glaze” or just “glazing agent”.

Carmine is made from insects and appears on cosmetics as CI 75470, a colour index number that looks like every other colour index number on the label.

Three ingredients, three different ways of being invisible. Only one of them is invisible by accident.

What certification actually adds

Because the word is unregulated, certification schemes exist to fill the gap. A trademark like the Vegan Society’s requires the manufacturer to meet a defined standard covering ingredients and, importantly, things an ingredient list would never show you, such as animal testing and certain processing aids.

That last part matters more than people expect. Some processing aids do not appear on a label at all because they are not ingredients in the finished product. Isinglass, a fish-derived fining agent used to clarify some beers and wines, is the standard example. No amount of careful label-reading finds it.

So a certification mark is worth more than a self-declared claim, and both are worth more than reading the list alone. That is an unusual conclusion for this website, which normally tells you the back of the pack beats the front. Here the front, if it carries a real certification, is telling you something the back cannot.

The three-tier way to think about it

A certification mark. The strongest signal, because someone has audited against a written standard.

A self-declared “vegan” claim. Usually made in good faith and covering ingredients, but it is the manufacturer’s own definition and it may not extend to processing aids.

No claim, and you are reading the list. Workable, and it is where an app that knows the synonyms earns its keep, but it cannot reach the things that never appear on a label.

Cosmetics are the harder half

Food labelling at least declares every ingredient. Cosmetic labelling does too, but in INCI names, which are Latin and technical by design, and there is no allergen emphasis to draw your eye to anything.

Carmine as CI 75470 is the obvious case. Lanolin from wool, beeswax, and milk-derived proteins in conditioners are others. If you avoid animal ingredients, the bathroom generally needs more attention than the kitchen, and it usually gets less.

Every alternative name we index is listed on the names page, which is the fastest way to check something you have seen on a bottle and do not recognise.