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What Is Gelatin Made Of? Key Uses and Vegan Alternatives

Ever wonder what gelatin is made of or where it is used? Learn everything you need to know about gelatin, its common applications, and vegan alternatives like agar-agar.

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What Is Gelatin Made Of? Uses & Vegan Alternatives Explained
Last updated on August 5, 2025, and last reviewed by an expert on August 4, 2025.
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What is gelatin made of?

Typical gelatin is a protein obtained by boiling skin, tendons, ligaments, or bones with water. Most of the materials used are obtained from cows and pigs. Therefore, gelatin is not vegan.

What Is Gelatin Made Of? Uses & Vegan Alternatives Explained

Where is gelatin used?

Gelatin is still widely used by the food and cosmetics industries. Typical use cases include:

Gelatin use in cosmetics

Used in shampoos, face masks, and other cosmetic products.

Gelatin use in food

Used as a thickener for fruit gelatins and puddings, candies, marshmallows, cakes, ice cream, and yogurts.

Gelatin use in the pharmaceutical industry

Used as a coating and in capsules.

Gelatin use in photography

It was used in analog photography for the gelatin process — a photographic technique in which gelatin serves as the dispersing vehicle for light-sensitive silver salts.

Gelatin use in beverages

Sometimes gelatin is also used to assist in clarifying wine and beer.

Agar-agar, the vegan gelatin alternative

Agar-agar is a plant-based gelatin derived from seaweed. It’s widely sold in flake, powder, bar, and strand forms. It’s often used in dairy-free and vegan recipes as a stabilizer and thickener. It is also used in gluten-free recipes as a thickener and is very nutritious.

What is agar-agar?

Agar-agar is a jellylike substance made from red algae, a type of seaweed.

Difference between agar-agar and gelatin

The main difference between agar-agar and gelatin is their source. Whereas animal-based gelatins are made from animals, agar-agar is vegan, coming from red algae. Also, when cooking with agar-agar, it requires different preparation. For example, agar-agar needs to be boiled to set, while gelatin can simply dissolve in warm water.

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