Hydrolyzed or Denatured Collagen: What Is the Difference?

When looking for a collagen supplement, it is common to encounter terms such as hydrolyzed collagen, denatured collagen, native collagen, or even undenatured collagen. Although these concepts may seem similar, they actually refer to different processes and characteristics of the collagen protein.

Knowing what each of these terms means will help you correctly interpret a supplement's labeling and understand the differences between the various formulations available on the market.

What Is Hydrolyzed Collagen?

Hydrolyzed collagen is the form of collagen most commonly used in dietary supplements. It is obtained through a process called hydrolysis, which breaks the long collagen chains into smaller peptides.

Thanks to this process, collagen can be easily incorporated into powdered, capsule, or liquid supplements, making it the most common option within the supplementation market.

What It Means for Collagen to Be Hydrolyzed

Many people search for what hydrolyzed means or what hydrolyzed collagen is without knowing exactly what this term refers to.

The word hydrolyzed indicates that the collagen has undergone a process of hydrolysis. During this process, collagen proteins are broken down into smaller fragments, known as collagen peptides.

It is important to understand that this term does not refer to the origin of the collagen—which can be marine, bovine, or porcine—but rather to the treatment the protein has received during manufacturing.

For this reason, it is possible to find both hydrolyzed bovine collagen and hydrolyzed marine collagen, as hydrolysis is a process independent of the raw material used.

How Hydrolyzed Collagen Is Obtained

The process begins with the extraction of collagen from tissues rich in this protein, such as skin, bones, or cartilage of animal or marine origin.

Subsequently, through controlled enzymatic or chemical hydrolysis processes, the long collagen fibers are fragmented into smaller peptides. The result is a raw material that can be easily incorporated into different types of dietary supplements.

After this process, the collagen is usually dried and presented in different commercial formats, such as powder, capsules, sachets, or liquid collagen.

Why Most Supplements Use Hydrolyzed Collagen

Currently, the vast majority of supplements available on the market use hydrolyzed collagen as their main ingredient.

This is because hydrolysis allows for the creation of a very versatile ingredient that is easy to incorporate into different formulations and compatible with a wide variety of consumption formats.

Furthermore, hydrolyzed collagen can be combined with other common ingredients in these types of supplements, such as vitamin C, hyaluronic acid, magnesium, or biotin, leading to formulations adapted to different goals and preferences.

What Is Denatured Collagen?

The term denatured collagen causes a lot of confusion because it is often mistaken for hydrolyzed collagen. However, the two concepts do not mean the same thing.

When a protein is denatured, its original three-dimensional structure is modified due to the action of heat, pH changes, pressure, or other physical or chemical processes. That is to say, the protein loses its natural structure, although it does not necessarily break into smaller fragments as it does during hydrolysis.

Therefore, collagen can be denatured without having been hydrolyzed, and hydrolyzed collagen has undergone a much more profound process that involves breaking its protein chains.

What Denatured Collagen Means

Speaking of denatured collagen means that the protein has lost its original structure as a consequence of a transformation process.

This change can occur during manufacturing, heat treatment, or even during certain industrial processes. However, denaturation does not necessarily imply that the collagen has been converted into collagen peptides.

Therefore, denatured and hydrolyzed are not equivalent terms and should not be used as synonyms.

Denatured Collagen and Native Collagen

Another concept that often appears in some supplements is that of native collagen or undenatured collagen.

Unlike denatured collagen, native collagen retains its original three-dimensional structure. That is, it has not been subjected to processes that significantly alter the protein's natural conformation.

This type of collagen is usually associated especially with undenatured type II collagen (UC-II® and other similar raw materials), used in certain specific formulations.

For this reason, when a supplement indicates that it contains undenatured collagen, it does not mean it is better or worse than hydrolyzed collagen, but rather that it is a different raw material obtained through a different process.

Is It the Same as Hydrolyzed Collagen?

The answer is no.

Although both come from collagen, hydrolyzed collagen and denatured collagen describe completely different processes.

Hydrolyzed collagen has undergone hydrolysis that fragments the protein into smaller-sized peptides, while denatured collagen has simply lost its natural structure without that fragmentation necessarily occurring.

Therefore, when comparing collagen supplements, it is important to look at the full product information and not assume that both terms refer to the same type of ingredient. Understanding this difference will allow you to correctly interpret the labeling and choose a supplement with better knowledge of its composition.

Hydrolyzed Collagen vs Denatured Collagen

Although both terms refer to collagen, they do not describe the same process nor the same type of ingredient. In fact, one of the most common points of confusion among consumers is thinking that denatured collagen and hydrolyzed collagen are synonyms, when in reality they represent different concepts.

Understanding these differences is useful for correctly interpreting supplement labeling and knowing what type of collagen each product contains.

Main Differences

The main difference between the two lies in the treatment the collagen protein receives.

Hydrolyzed collagen has gone through a hydrolysis process that breaks long collagen chains into smaller-sized peptides. For this reason, it is the form most commonly used in currently available dietary supplements.

Conversely, denatured collagen has had its three-dimensional structure modified due to different physical or chemical processes, but this does not necessarily imply that the protein has been fragmented via hydrolysis.

In other words, all hydrolyzed collagen has undergone significant structural modifications, but not all denatured collagen is hydrolyzed.

Protein Structure

The difference can also be understood by looking at the protein structure.

In native or undenatured collagen, the molecule retains its original structure virtually intact.

When collagen is denatured, that three-dimensional structure is altered, although the protein chains remain relatively long.

In contrast, during hydrolysis, those chains are broken into smaller-sized collagen peptides, obtaining a different raw material that is what is habitually used in the manufacture of hydrolyzed collagen supplements.

Therefore, hydrolyzed, denatured, and undenatured describe distinct states of the same protein and should not be used as equivalent terms.

Extraction Processes

Another important difference is the process through which each type of collagen is obtained.

Hydrolyzed collagen is produced by applying a controlled hydrolysis process, usually via specific enzymes, which fragment collagen proteins into peptides.

Denatured collagen, on the other hand, can appear as a consequence of heat treatments, pH variations, or other industrial processes that modify the protein's structure without necessarily hydrolyzing it.

For its part, native or undenatured collagen is obtained through processes designed to preserve the collagen's natural structure, avoiding significant alterations during its manufacturing.

Most Common Uses

Each of these forms of collagen is usually found in different products.

Hydrolyzed collagen is, by far, the most used in currently marketed dietary supplements. It can be found in powder, capsules, tablets, or liquid format and is the basis of most collagen supplements available on the market.

Undenatured collagen, meanwhile, is usually used in specific formulations that utilize particular raw materials, such as certain supplements made with type II collagen.

For this reason, when comparing products, it is advisable to always look at the type of collagen indicated by the manufacturer and not just terms like "hydrolyzed" or "denatured."

Which Type of Collagen to Choose?

There is no single type of collagen that can be considered the best in all cases. The choice will depend on the goal you are pursuing, the type of formulation you are looking for, and the characteristics of each supplement.

Beyond the terms used in the labeling, it is advisable to analyze the product as a whole before making a decision.

If You Are Looking for a General-Use Supplement

If your intention is to incorporate a collagen supplement as part of your daily routine, it is most common to find products made with hydrolyzed collagen.

This type of collagen is present in most dietary supplements and can come from different origins, such as marine, bovine, or porcine collagen. Furthermore, it is usually combined with ingredients like vitamin C, hyaluronic acid, or magnesium to offer more complete formulations.

For this reason, hydrolyzed collagen is usually the most frequent option when looking for a general-use supplement.

If You Are Looking for Collagen with a Specific Formulation

In certain situations, it is possible to find supplements that use specific raw materials, such as undenatured type II collagen.

In these cases, the most important aspect is not whether the collagen is hydrolyzed or not, but knowing exactly what type of collagen the formula incorporates and what purpose the product has been designed for.

Therefore, it is advisable to always review the complete composition of the supplement and understand the meaning of the denominations used by the manufacturer before making a comparison.

Aspects You Must Compare Before Buying

When choosing a collagen supplement, it is best to go beyond terms like hydrolyzed or denatured and evaluate other aspects that may influence the quality of the product.

Among the main factors to compare are:

• The type of collagen used (type I, II, III, or combinations).

• The origin of the raw material (marine, bovine, or porcine).

• The amount of collagen provided per dose.

• The presence of complementary ingredients, such as vitamin C or hyaluronic acid.

• The manufacturer's transparency regarding the composition, the manufacturing process, and quality controls.

Analyzing all of these elements together will allow you to make a much more informed choice and select a supplement that truly adapts to your preferences and needs.

How to Identify a Good Collagen Supplement

Choosing a collagen supplement should not be based solely on terms like hydrolyzed, denatured, or native. Although these denominations provide information about the type of raw material used or the manufacturing process, there are other factors that are also fundamental to evaluating the quality of a product.

Carefully reviewing the labeling and the information provided by the manufacturer will allow you to compare different supplements with better criteria and choose the one that best adapts to your needs.

Check the Type of Collagen Used

One of the first things worth checking is what type of collagen the supplement contains.

Currently, there are formulations made with type I, type II, type III collagen, or combinations of several types. Furthermore, collagen can have different origins, such as marine, bovine, or porcine, and can be presented in the form of hydrolyzed or undenatured collagen depending on the manufacturing process used.

For this reason, before buying a supplement, it is advisable to clearly identify the type of collagen it incorporates and check if it fits the goal for which you wish to use it.

Check the Full Composition

Collagen is often combined with other ingredients commonly found in food supplements.

Vitamin C, hyaluronic acid, magnesium, biotin, or zinc are some of the components that may be part of the formulation, depending on the product.

In addition to reviewing these ingredients, it is also worth checking the amount of collagen provided per dose, the complete list of components, and the presence of possible allergens or ingredients you do not wish to consume.

A clear and well-detailed formulation makes it easier to compare different supplements and make a more informed decision.

Assess the Manufacturer's Quality and Transparency

The quality of a supplement does not depend solely on the type of collagen used. The source of the raw material, the manufacturing processes, quality controls, and the manufacturer's transparency are also important aspects.

Brands that offer detailed information about the origin of the collagen, the extraction process, the product's composition, and the amounts present in each dose instill greater consumer confidence.

Before choosing a supplement, take a few minutes to review this information. Comparing these aspects will allow you to assess the overall quality of the product and choose an option that best suits your preferences and expectations.