Does taking collagen really help take care of your skin and joints?
It is one of the most common questions when we talk about food supplements.
And it makes sense: collagen is part of our body, its production changes with age, and we increasingly find more products that include it.
But there is an important difference between needing collagen to live and obtaining additional benefits from taking it in supplement form.
Let's look at what we know, what is still being researched, and what you should look for before buying it.
What is collagen and what is it for?
Collagen is a structural protein that our body produces naturally. It is present in the skin, bones, tendons, ligaments, and cartilage.
We can imagine it as part of the framework that provides strength and structure to different tissues.
Over the years, the production and renewal of collagen change. In the skin, these changes contribute to the loss of firmness and elasticity.
However, that does not mean that taking more collagen makes the body send it directly to the areas we would most like.
When digested, our body breaks it down into amino acids and small peptides, which it can then use in different processes.
Benefits of collagen: what does science really say?
Collagen for the skin
Some studies have observed improvements in parameters such as skin hydration and elasticity after consuming certain collagen peptides.
Results on skin hydration and elasticity
Does it mean it works for everyone? Not exactly.
A scientific review published in 2025 analyzed 23 clinical trials with 1,474 participants. Although the set of studies showed favorable results, these benefits ceased to be significant when analyzing higher quality studies and those without funding from pharmaceutical companies.
Other reviews have found positive results, so research continues.
The prudent conclusion: there are interesting signs, but we still cannot guarantee that taking collagen prevents wrinkles or slows down skin aging.
Collagen for joints
Here we also find promising results.
A review of 11 clinical trials published in 2025 observed improvements in joint pain and function in people with knee osteoarthritis who took certain collagen supplements.
It is an interesting result, although the studies had significant differences between them.
Furthermore, improving some symptoms does not mean regenerating cartilage or curing osteoarthritis.
Supplements do not replace a diagnosis, adapted exercise, or treatments indicated by a healthcare professional.
Study on the effects of collagen
What is the difference between hydrolyzed collagen and collagen peptides?
Hydrolyzed collagen is collagen that has been fragmented through a process called hydrolysis.
The resulting fragments are known as collagen peptides.
That is why both terms often appear together on labels.
There are also products with non-hydrolyzed collagen, such as certain type II collagen formulations. They are not equivalent, and their studies cannot be automatically extrapolated to other formats.
The important thing is not to find the most sophisticated word on the packaging, but to know the composition and the amount it provides.
And what role does vitamin C play?
Vitamin C contributes to normal collagen formation for the normal functioning of skin, cartilage, and bones.
This function is recognized in the health claims authorized by the European Union.
But be careful: just because vitamin C participates in normal collagen formation does not prove that any supplement that combines both ingredients eliminates wrinkles or joint discomfort.
These are different claims.
How to choose a collagen supplement
Before deciding on one, check these five aspects:
- Type of collagen: hydrolyzed, peptides, or other formulations.
- Origin: bovine, marine, or other sources, especially if you have allergies or dietary restrictions.
- Amount per dose: check how much collagen the recommended serving actually provides.
- Additional ingredients: vitamin C, minerals, or other components, evaluating what each one contributes.
- Format and price: powder, capsules, or liquid. Compare the cost per dose, not just the price of the container.
And remember: a longer list of ingredients does not necessarily mean a better product.
Three supplements you can find at Farmàcia Pasteur
If you are comparing options, you will find different presentations in our pharmacy:
Ancient + Brave True Collagen 200 g. Contains type I hydrolyzed bovine collagen peptides. Its powder format and neutral flavor allow it to be mixed with drinks or food.
Gold Collagen Forte 50 ml, 10 units. An alternative in liquid format for those who prefer individual servings. It is advisable to check its ingredients and amounts before choosing it.
Zenement Marine Collagen Complex, 180 capsules. A capsule option for those looking for this origin of collagen and who prefer to avoid powder preparations.
None of these formats guarantees better results on its own. The choice should be based on composition, personal preferences, and pharmaceutical advice.
So, is it worth taking collagen?
It depends on your needs and expectations.
Collagen fulfills essential functions in the body, but the benefits of taking it as a supplement still present uncertainties.
A balanced diet, sufficient protein intake, sun protection, and healthy habits remain fundamental.
If you are thinking about incorporating it into your routine, especially if you have an illness, take medication, or are pregnant, consult a healthcare professional.
At Farmàcia Pasteur, we can help you compare options with discernment, without miraculous promises.
