Collagen is the main character behind smooth skin, strong hair and that springy feeling in your joints. Understanding a few key concepts reveals why your skin’s glow changes with age and explains the recent popularity of those collagen powders you’re seeing everywhere.
Here’s everything you need to know about this vital protein.
What is collagen and why does your body loves it?
Collagen is a protein found in some foods that supports your body’s systems. Think of it as the scaffolding that holds your tissues together. It shows up in skin, tendons, ligaments, cartilage, bones, and even part of your gut lining and blood vessels.
Collagen is made from amino acids, which your body uses to build long, strong fibres that give tissues structure and stretch. You might see different types of collagen mentioned online. Each one is helpful for a different bodily system.
Hydrolysed collagen is broken down into smaller peptides with the goal of easier digestion and absorption. Gelatin is cooked collagen that works well in food and drinks. Then, there are beauty blends, which contain a mix of collagen, vitamin C, biotin or hyaluronic acid. These also often include sugar and fillers.
If your skin feels firmer, you can thank collagen. If your knees feel smoother on stairs, give collagen a round of applause. If your nails break less, your body is using collagen to ensure you get that perfect mani each time.
How collagen works
You don’t swallow collagen and send it on a specialised courier service straight to your cheeks. Instead, when you consume any collagen or protein, your body breaks it down, and you absorb the peptides and amino acids. Then, your body decides what to build.
Your body also needs cofactors to support collagen production. Vitamin C plays a key role, and your lifestyle is important, too. Smoking and sun exposure can accelerate collagen breakdown and lead to premature skin ageing.
When looking for a vitamin C serum, it’s important to look for products that contain 10 -20 per cent vitamin C, as anything less may not be as effective and anything more could be irritating.
Research shows that collagen synthesis declines with age. Roughly 1 -1.5 per cent of annual collagen decline is due to ageing and shows up as drier skin, less elasticity and more fine lines.
To put the science of skincare ingredients in perspective, retinoids have been widely used in dermatology since the 1970s, particularly for treating acne and signs of ageing. Collagen decline can also show up in how you feel during training. Tendons and joints often feel less ‘forgiving’ when you stack long weeks on the calendar.
Benefits of collagen for women
The many types of collagen available can benefit your body in several ways. You might notice some changes in unexpected places and not attribute them to collagen, even if that’s what’s been helping you.
Skin hydration, elasticity and fine lines
This is the part you’ve probably already heard about on social media. Oral collagen supplements can improve skin hydration and elasticity. They can also help with anti-ageing benefits such as reducing wrinkles, but results vary by product.
The most important thing about oral collagen supplements for skin health is consistency. If you take them erratically, you might not notice any change at all. However, if you take one every morning for a month or two, you’ll likely notice some positive changes.
Joint comfort and movement support
There’s evidence that collagen derivatives help relieve osteoarthritis, including decreasing pain and improving functional outcomes. Collagen peptides have also been shown to reduce knee osteoarthritis symptoms.
However, it’s important to manage your expectations. Collagen is not a replacement for strength training or rehab work, but it can add a supportive layer.
Bone and muscle support
There is growing research on collagen peptides for improved musculoskeletal outcomes and connective tissue support. The results depend on the population and the protocol. Treat this as a bonus rather than the sole reason you buy a collagen supplement.
Collagen supplements vs food sources
When trying to increase your collagen intake, it can be challenging to find what works for you. You can get collagen through supplements or with some small diet changes — the trick is deciding which is best for you.
When a supplement is worth it
A collagen supplement can make sense if you struggle to hit your protein targets or want a low-effort daily habit that supports your skin and joints. Studies show that daily doses ranging from 2.5 to 15 grams are safe to use in smoothies and soups.
If you’re pregnant, breastfeeding or managing a health condition, run your supplement choices past your clinician to make sure it’s safe for you.
Food-first collagen
You can support collagen without buying anything extra. Eat enough protein and pair it with vitamin C-rich foods. Options include slow-cooked cuts with connective tissue, bone broth, gelatin and fish.
Finding the balance
Make the most of your collagen intake by eating enough protein, getting enough vitamin C and caring for your skin. Go to the gym and lift weights to support your joints and bones.
If that’s not enough, take collagen supplements consistently, give it a few months and watch the magic happen.
