The Gelatin & Collagen Knowledge Hub
Practical answers and technical guidance on gelatin, collagen and food ingredient functionality.
Looking for a definition? Explore our Gelatin & Collagen Glossary
Gelatin & Collagen
What is gelatin?
Gelatin is a natural protein derived from collagen-rich animal raw materials. It typically contains approximately 84–90% protein, around 2% mineral salts, with the balance consisting of water.
Gelatin is classified as a food rather than a food additive and therefore does not have an E number.
A clean-label ingredient
Produced in accordance with recognised food-quality and safety standards, gelatin supports the growing demand for clean-label products. It provides important functional properties without the need for many artificial or chemically modified additives.
Gelatin contains no preservatives or added ingredients and is naturally free from fat, cholesterol and uric acid compounds.
A highly versatile protein
Gelatin’s unique functional and nutritional properties make it suitable for a wide range of applications. It is used in foods and beverages, confectionery and culinary products, as well as in pharmaceutical and nutraceutical formulations where quality, consistency and performance are essential.
Collagen is the most abundant structural protein found in animals. It plays an important role in connective tissues such as skin, bones, tendons, cartilage and ligaments.
In ingredient form, collagen is used in a range of food, nutrition and health-related applications. It is also the source material from which gelatin and collagen peptides are produced. The way collagen is processed determines whether the final ingredient is gelatin, which forms gels, or collagen peptides, which are soluble and designed for nutritional applications.
Collagen is the original structural protein found in animal connective tissue.
Gelatin is produced when collagen is partially hydrolysed, changing its structure and making it useful as a functional food ingredient.
The key difference is performance. Gelatin can form gels, thicken liquids, bind water and improve texture. Collagen peptides are further hydrolysed into smaller protein fragments and are usually used for nutritional purposes because they dissolve easily and do not form a gel.
Through their technological and commercial uses, collagen peptides – also named collagen hydrolysates – are versatile in their applications and play an important role in modern health programs. Their purity and neutral taste make collagen peptides valuable ingredients for functional foodstuffs, nutraceutical applications or nutricosmetics. Just like gelatin, collagen peptides are pure collagenous proteins; however, they are not able to gel.
The primary areas of collagen applications are:
- Bone and joint health
- Beauty-from-Inside and topical cosmetics
- Weight control
- Healthy ageing
- High protein diets / Sports nutrition
- Animal health
Yes. Gelatin is a protein ingredient. It is made from collagen and contains amino acids that are characteristic of collagen-derived proteins.
Because gelatin is both a protein and a functional ingredient, it can contribute to formulation in more than one way. It can support texture, gel formation, water binding, mouthfeel and protein content, depending on the application.
Food-grade gelatin and collagen peptides are manufactured from selected animal raw materials whose meat is approved for human consumption under controlled processing and hygiene conditions. Raw-material traceability, quality checks and regulatory oversight help ensure that they meet the requirements for their intended use.
Gelatin is produced from collagen-rich animal materials, including skins and bones. These undergo pretreatment followed by extraction with warm water. The resulting gelatin solution is purified, concentrated, dried and tested against quality specifications.
Controlled processing allows manufacturers to produce gelatin with different gel strengths and other properties suited to food, pharmaceutical and technical applications.
Gelatin is used in many food and non-food applications. In food, it is commonly used in confectionery, jellies, desserts, dairy products, meat products, bakery fillings, capsules and nutritional products.
Its popularity comes from its combination of functional properties.
Gelatin can create clear gels, elastic textures, foam stability, moisture retention and smooth mouthfeel. These characteristics make it valuable across both traditional and modern food formulations.
Gelatin manufacture makes use of collagen-rich materials recovered from existing meat and fish processing, adding value to these resources and supporting more efficient use of raw materials.
Responsible production also involves traceability and transparency. Documented sourcing, batch tracking and independently audited systems help demonstrate where materials come from and how they are handled. Environmental management and sustainability reporting provide further visibility into producers’ practices and performance.
Read more: Transparency & Traceability: How Gelatin Meets Modern Sustainability Expectations
Alpha-gal syndrome is an allergy associated with certain tick bites that can make some people sensitive to mammalian meat and mammalian-derived ingredients, including gelatin. Ingredient source can therefore matter.
Gelatin is useful because it performs several functions within one ingredient.
It can gel, thicken, bind water, stabilise foams, improve elasticity, enhance mouthfeel and support product structure.
For food manufacturers, this versatility can simplify formulation. Rather than providing only one effect, gelatin can contribute to texture, stability, processing performance and consumer experience at the same time.
Bloom strength is a measure of gel firmness. It indicates how strong a gelatin gel will be under defined test conditions.
In practical terms, a higher bloom gelatin generally forms a firmer gel, while a lower bloom gelatin forms a softer, more flexible gel.
Selecting the right bloom strength is important because different food applications require different levels of firmness, elasticity and texture.
Gelatin forms a gel when gelatin molecules dissolve in warm water and then partially reassemble as the solution cools. This creates a three-dimensional network that traps water inside the structure.
This gel network gives gelatin its characteristic texture.
The final result depends on factors such as gelatin concentration, bloom strength, temperature, pH, sugar, salts and other ingredients in the formulation.
Gelatin helps bind water by forming a protein network that can hold moisture within a food system.
This can improve juiciness, reduce moisture loss and support a smoother eating texture.
Water binding is especially important in applications where texture, yield, stability or shelf-life performance matter. In meat products, desserts and prepared foods, gelatin can help manage moisture and improve product consistency.
Gelatin can create textures ranging from soft and delicate to firm and elastic.
It can also improve smoothness, body and melt-in-the-mouth qualities.
The texture achieved depends on bloom strength, dosage, processing conditions and the overall formulation. This makes gelatin highly adaptable across different product categories, from confectionery and desserts to savoury and meat-based applications.
Gelatin is a protein-based gelling ingredient, while many other hydrocolloids are carbohydrate-based. This gives gelatin a distinctive combination of gel strength, elasticity, clarity, melt behaviour and mouthfeel.
One of gelatin’s most valued characteristics is its thermoreversible gelation. It can set when cooled and melt when warmed, which contributes to its unique sensory profile in many food applications.
Gelatin functionality
Collagen and nutrition
Collagen is used in food, beverage, nutrition and supplement applications.
It is often included in products designed for protein enrichment, active lifestyles, beauty-from-within positioning and general nutrition.
Collagen-derived ingredients may be used in powders, ready-to-drink beverages, gummies, bars, dairy products and functional foods.
The choice between gelatin and collagen peptides depends on whether the product needs texture functionality, nutritional solubility, or both.
Collagen peptides are used where easy solubility and protein fortification are important.
They can be added to hot or cold beverages, powdered drink mixes, nutrition bars, dairy products, soups, gummies and functional foods.
Because collagen peptides do not form a gel, they can be incorporated into products without significantly changing texture.
This makes them useful in formulations where protein contribution is required without thickening or setting.
Collagen is the original structural protein.
Gelatin is produced when collagen is partially hydrolysed.
Collagen peptides are produced when collagen or gelatin is hydrolysed further into smaller protein fragments.
These ingredients are related, but they behave differently. Gelatin is mainly valued for both protein content and functional properties such as gelling and texture. Collagen peptides are mainly valued for solubility and nutritional applications.
Yes. Collagen peptides are widely used in functional foods because they are soluble, easy to formulate and suitable for protein-enriched products.
They can be used in beverages, powders, bars, dairy-style products and gummies.
When developing functional foods, manufacturers need to consider taste, solubility, dosage, texture, processing conditions and the positioning of the finished product.
Collagen has a distinctive amino acid profile and comes from connective tissue proteins.
It is different from proteins such as whey, soy, pea or casein in composition, functionality and application.
Collagen peptides are often selected for solubility, neutral formulation behaviour and specific nutrition positioning. Gelatin, by contrast, is selected when protein functionality and texture performance are required.
Visit our Guide to Gelatin Preparation
For Food Manufacturers
Manufacturers choose gelatin based on the required function, final texture, processing conditions and product category.
Important considerations include bloom strength, viscosity, clarity, setting behaviour, gel elasticity and compatibility with other ingredients.
The right gelatin depends on the application.
A confectionery product, meat product, dairy dessert and capsule application may each require different gelatin characteristics.
Read the full article: How Manufacturers Choose the Right Gelatin
Bloom strength matters whenever gel firmness, elasticity and texture are important.
It helps manufacturers select gelatin that can deliver the required structure in the finished product.
Higher bloom gelatin may be selected for firmer gels or stronger structure, while lower bloom gelatin may be used where a softer texture or different processing behaviour is preferred.
In meat products, gelatin can help with water binding, texture, sliceability, juiciness and appearance.
It is commonly associated with applications such as jellied meats, pâtés, aspics, hams and prepared meat products.
Gelatin can help stabilise moisture and improve product structure. The appropriate gelatin type and dosage depend on the meat system, processing method and desired finished texture.
Read the article: Gelatin in Pâté and Jellied Meats: More Than Just Texture
In confectionery, gelatin is used to create elastic, chewy and clear gel textures. It is widely used in gummies, marshmallows, jellies and aerated sweets.
Its ability to form flexible gels and stabilise foam makes it especially valuable in confectionery applications.
Bloom strength, concentration and processing temperature all influence the final bite and texture.
Gelatin can help stabilise dairy products and desserts by improving body, texture and water control.
It is used in mousses, panna cotta, yoghurts, creams, jellies and chilled desserts.
It can create smooth, delicate textures and help prevent separation.
The final result depends on the recipe, processing method, cooling profile and interaction with dairy proteins, sugars and other ingredients.
A manufacturer should speak to a gelatin supplier when selecting bloom strength, troubleshooting texture issues, developing a new product, replacing an ingredient, improving stability or scaling up production.
Supplier guidance can help match gelatin type to the required application. This is especially important when formulation performance, processing efficiency and finished product consistency are critical.
Gelatin’s film-forming and water-binding properties make it useful in skincare, haircare and personal-care formulations. It can contribute to product texture, moisture retention and hair feel.
Hydrolysed collagen ingredients are also used for conditioning and moisturising. These topical applications are distinct from orally consumed collagen peptide products marketed for “beauty from within”.
Gelatin is used to manufacture hard capsules and softgels, providing a shell that contains the formulation and makes it easier to ingest. Hard capsules commonly hold powders or granules, while softgels often contain liquid or oil-based formulations.
Gelatin can also act as a tablet binder or coating and is used in specialist medical products such as haemostatic sponges and plasma extenders.
Specially purified gelatin holds light-sensitive silver halide crystals in an evenly dispersed layer on photographic film and paper. Its ability to swell allows processing chemicals to reach those crystals during development and fixing.
Gelatin is also used in conventional X-ray film and certain specialist printing and art-photography processes.
Gelatin can help bind ingredients, retain water and create texture in pet foods and treats. It can also be used to encapsulate sensitive ingredients, helping protect them from exposure to light and oxygen.
Collagen peptides are used in some animal nutrition products and supplements. Their nutritional role differs from gelatin’s main functions in binding and gel formation.
Gelatin’s binding, film-forming and encapsulating properties have uses beyond food and personal care. Applications include adhesives, abrasive papers and specialist coatings.
Gelatin can also form microcapsules around other substances. One established example is carbonless copying paper, where tiny capsules hold the colour-forming components until pressure releases them.
Applications
Scientific Studies on Collagen Peptides
Research has explored the potential benefits of collagen peptides for skin, joint and bone health.
Explore our collection of scientific studies for details of the products, doses and outcomes investigated.
GMAP News
Collagen and Functional Foods
Collagen and Functional Foods: Where Do Collagen Peptides Fit? Consumers increasingly look to everyday foods and beverages for more than basic nutrition. Protein-enriched drinks, [...]
Alpha-Gal Syndrome: Gelatin, Collagen & Cosmetics
Alpha-gal syndrome: why the source of gelatin and collagen matters A food allergy triggered by a tick bite sounds unusual. Yet alpha-gal syndrome is [...]
What Is Bloom Strength? Understanding Gelatin Gel Strength
What is Bloom Strength? Bloom strength is one of the most important measures used to describe how a gelatin will perform. But what does [...]
Not All Peptides Are the Same: Collagen Peptides Explained
Not All Peptides Are the Same: Why Collagen Peptides Deserve Clear Distinction Recent headlines about peptide drugs are a timely reminder that clear ingredient [...]