on July 09, 2025
The range of collagen supplements is huge. Powders, capsules, drinks, marine or bovine, type I or type II... How do you know what you’re buying? In this article, you’ll find seven essential things to consider when choosing a collagen product that matches your preferences. No hype or claims—just clear information about labels, forms, and ingredients.
What is Collagen?
Collagen is a naturally occurring protein found in connective tissues such as skin, tendons, cartilage, bones, and blood vessels. It’s made of amino acids that form long fibers. In supplements, collagen is always derived from animal sources like bovine, fish, or chicken. Because raw collagen isn't suitable for consumption, it is processed into usable forms like gelatin or collagen peptides.
Why Do People Use Collagen Products?
People use collagen supplements for various reasons. Some include it in their daily wellness routine. Others use it as part of a high-protein diet or as a supplement to their regular nutrition. Whatever the reason, it’s important to understand what’s in a collagen product and what labels are (and aren’t) allowed to claim under European food law.
1. Type of Collagen (I, II or III)
There are multiple types of collagen, but types I, II, and III are most common in supplements:
- Type I: Found in skin, bones, and tendons.
- Type II: Mainly present in cartilage.
- Type III: Occurs in skin, blood vessels, and organs.
The type of collagen determines its structure and typical source. Many powder products combine type I and III, while type II is often found in supplements made from chicken cartilage.
2. Form: Hydrolysate, Peptides or Gelatin
Collagen comes in different forms, depending on how it’s processed:
- Gelatin: Partially broken-down collagen that dissolves in hot water. Common in capsules, softgels, or gummies.
- Hydrolysate / Collagen Peptides: Fully broken-down collagen using enzymatic hydrolysis. Dissolves in both hot and cold liquids. Ideal for powders and drinks.
“Hydrolysate” and “peptides” refer to the same form in practice. Always check which form is used, as it affects solubility and how you can take it.
3. Source of the Collagen
All collagen comes from animal sources. Common origins include:
- Bovine (beef): Most common source of type I and III collagen.
- Marine (fish): Usually type I collagen from fish skin or scales.
- Chicken: Source of type II collagen, primarily from cartilage.
- Pork (porcine): Often used in gelatin products.
The source is important for dietary or religious reasons. Some products carry labels like halal, kosher, or Non-GMO. Allergens such as fish or beef must be clearly indicated on the label.
4. Collagen Amount per Serving
Dosage can vary widely between products. Some contain less than 1 gram of collagen per serving, others up to 5–10 grams. More isn’t always better—what matters is that the amount per daily dose is clearly stated, not just per scoop or capsule. Also check how many servings are in the package.
5. Added Ingredients and Excipients
Some collagen supplements include additional ingredients, such as:
- Vitamin C: Allowed to state that it contributes to collagen formation if the required minimum is present per daily dose.
- Sweeteners and flavors: Especially in powders or ready-to-drink formulas to improve taste.
- Minerals: Such as zinc or copper, which are involved in connective tissue function.
- Excipients: Fillers or binding agents in tablets or capsules.
Always check the full ingredient list. Transparency in formulation is a key sign of product quality. Allergens must also be clearly listed.
6. Format: Powder, Capsule or Liquid
Collagen supplements come in different formats:
- Powder: Usually flavor-neutral, dissolves easily in water or smoothies.
- Capsules/Tablets: Convenient for travel. Often require multiple units per daily dose.
- Liquid or shots: Ready to drink, often combined with other nutrients.
Choose a format that fits your lifestyle. Check the recommended frequency of use—daily or several times per week.
7. Label Transparency
A good collagen product provides clear and verifiable label information:
- The type(s) of collagen used
- The source (e.g. bovine, fish, chicken)
- The form (hydrolysate/peptides or gelatin)
- The exact amount per serving
- Any added vitamins, minerals, or sweeteners
- Allergens and certifications (e.g. halal, Non-GMO)
Products using vague terms like “beauty blend” or “natural collagen complex” without clear composition offer less clarity. Honest, complete labeling matters.
Bonus: Collagen in Food
Collagen or its building blocks also occur naturally in food. Examples include:
- Bone broth (rich in collagen after long simmering)
- Meat with connective tissue (e.g. stews, chicken wings)
- Foods high in protein, vitamin C, zinc, and copper
A balanced diet is always the foundation. Supplements can add to that but do not replace whole foods.
Frequently Asked Questions
1. Is plant-based collagen really collagen?
No. True collagen is always animal-based. Plant-based products may contain ingredients that support natural collagen formation, but do not contain collagen themselves.
2. Can I combine different types of collagen?
Some products combine type I and III, others contain type II only. You can combine them, as long as the types are clearly stated on the label.
3. Is there a difference between marine and bovine collagen?
Yes, they differ in source and sometimes in amino acid profile. Marine collagen is typically type I, while bovine collagen is often a mix of type I and III. Both are commonly processed into hydrolysate form.
Summary
- Check the type, source, and form of collagen (hydrolysate or gelatin).
- Amounts per serving can vary significantly—read labels carefully.
- Review the full ingredient list for sweeteners, excipients, and allergens.
- Choose a format (powder, capsule, liquid) that fits your routine.
- Transparent labels help you make informed decisions.
- Collagen and its building blocks can also be found in food.
Our collagen products contain Naticol® fish collagen
The scientific evidence consistently shows that daily intake of Naticol® fish collagen peptides positively affects skin hydration, elasticity, and wrinkle formation at dosages starting from 2.5 g. Higher dosages (5 g and 10 g) provide additional benefits in firmness and hydration.
Thanks to its high bioavailability and excellent tolerability, Naticol® is a safe and effective choice for consumers looking to support their skin, hair, and nails.
Our product lines Pure Marine Collagen and Beauty Blend Collagen combine Naticol® with carefully selected vitamins and minerals.
Want to Learn More?
Curious about collagen types, sourcing, or how to read product labels? Browse our other blog articles or visit our webshop for transparent information on ingredients, dosage, and product formats.
