Collagen vs. Other Supplements: What You Need to Know

October 06, 2025 12 min read

Collagen vs. Other Supplements: What You Need to Know

If your joints ache or your skin looks less firm, you may wonder if collagen supplements can help. Collagen is the main protein in our skin and bones, but we lose it as we get older.

This blog will compare collagen to other nutritional supplements and show how each might support things like bone health, joint health, or skin elasticity. Keep reading for clear tips you can use right away.

Key Takeaways

  • Collagen is a protein that helps your skin, joints, and bones. It comes from animals.
  • Taking collagen can make your skin look better and help with joint pain. But there's not enough proof it works for everyone.
  • You can find collagen in foods like meat and fish. Supplements come as powders or drinks.
  • Other supplements like omega-3s are good for your heart. Protein powders help muscles grow.
  • Talk to a doctor before you start taking any supplement to make sure it's safe for you.

What is Collagen?

An elderly woman studies nutrition charts while enjoying bone broth.

Collagen is the most abundant protein in your body and keeps things like skin, bones, cartilage, and tendons strong. Think of it as scaffolding for your joints and skin cells. Your body makes collagen using amino acids from foods like meat, fish, and bone broth.

After age 20, collagen production slows down each year. Less collagen means stiffer joints, weaker connective tissues, and sagging skin.

Sourced only from animal connective tissue—such as cows or fish—collagen can't come from plants or vegetables. Gelatine (used in jellies) comes from cooked collagen too; you've likely eaten it without even thinking! Supplements use hydrolysed forms called “collagen peptides” so the gut can absorb them easily.

"Collagen's triple helix shape gives our skin its bounce," says Tim Goodwin of Lean Greens.

There are several types: type I shows up in skin and bones, while type II helps cushion our knees—a game-changer for anyone with osteoarthritis or rheumatoid arthritis after middle age.

Key Benefits of Collagen Supplements

Collagen supplements show real promise for your skin, joints, and even your hair. Many people spot firmer skin and fewer aches after taking hydrolysed collagen or sipping bone broth daily.

Improved skin elasticity and hydration

A review in the International Journal of Dermatology showed that collagen supplements helped 1,125 people have firmer and more supple skin. Users saw reduced wrinkles, a boost in moisture, and better skin elasticity.

Hydrolysed collagen has shown promise for hydration and firmness after menopause; even so, more proof is needed before shouting from the rooftops.

Collagen works hand-in-hand with elastin and hyaluronic acid to keep your dermis plump and bouncy. Ageing, smoking, too many drinks at the pub or basking under ultraviolet light make collagen loss worse.

Some randomised controlled trials found that peptides like prolylhydroxyproline can help support skin health by improving moisture levels. Still, experts like dermatologist Anjali Mahto remind us that most oral supplements break down during digestion; only some pieces might reach your connective tissue for real change.

Keep an eye out for products backing their claims with proper clinical studies rather than flash packaging or jelly-like collagen gummies you find next to bone broth on shop shelves!

Enhanced joint health and mobility

Type II collagen, found in cartilage, is a key player for joint health. It cushions joints and keeps them moving smoothly. Collagen supplements often use hydrolysed collagen or undenatured type II collagen to support this role.

Collagen production drops with age, making joints feel stiff or sore for many people over 35.

Some research shines a light on small but real benefits. For example, Hunt and colleagues reported that collagen may cut osteoarthritis pain short-term. Robert Erskine's study gave young men 30 grams of hydrolysed collagen with vitamin C before exercise; their bodies made more new collagen after workouts.

But results faded in middle-aged men due to lower oestrogen levels.

Support from experts remains cautious. The European Food Safety Authority has not approved strong claims about joint health improvements yet; study quality makes it hard to draw firm conclusions, especially for those living with rheumatoid arthritis or knee osteoarthritis.

People still reach for bone broth, protein powders and even gummies hoping to move better each day.

How does all this compare against other choices like whey protein shakes or omega-3 capsules?

Strengthened hair and nails

Joint health and strong connective tissues rely on collagen, but many people also hope for better hair and nails. Reports often claim that hydrolysed collagen boosts hair growth and nail strength.

Science does not back this up well. There is little proof from clinical trials for real change in hair health or growth after taking collagen supplements.

A 2017 study followed just 25 people who took 2.5g of collagen daily over 24 weeks; they noticed some improvement with brittle nails growing faster, yet there was no control group.

Most claims about stronger hair come from personal stories instead of solid research. Collagen protein acts as a building block for keratin, which helps form our nails and hair shafts, but swallowing peptides does not mean they get to your scalp or fingertips directly.

 

Collagen may support the structure of your nails, but scientific evidence remains thin.

 

Some supplements pack their powders with nutrients like vitamin C or biotin to support skin hydration alongside nail health. Still, no large studies have proven any special benefit to using these products for hair or fingernails alone without a balanced diet behind them.

It pays to chat with your GP before starting dietary supplements if you dream of thicker locks or less brittle ends – especially since most results are anecdotal rather than shown in randomised controlled trials.

Comparing Collagen with Other Supplements

Choosing between collagen powders, protein shakes, or fish oil can feel like picking apples from oranges—each brings something different to the table, so stick around and see which one lines up best with your goals.

Collagen vs. Protein Powders

Not all protein powders are created equal, and neither are collagen supplements. For anyone unsure about whether to choose a collagen scoop or stick with classic protein powder, the table below lays it all out—clear as a bell.

 

Factor Collagen Supplements Protein Powders
Source Animal connective tissue, such as cow bones or fish skin Milk (whey/casein), eggs, peas, rice, soy, and more
Main Amino Acids Rich in glycine, proline, hydroxyproline Broad spectrum, includes all essential amino acids
Typical Dose Per Serving 5–10g (0.2–0.4 ounces) 20–30g (0.7–1 ounce)
Dietary Role Provides building blocks for the body's protein needs, especially for skin, joints, and connective tissue Supports muscle repair, growth, and general daily protein intake
Veggie Friendly? Usually not, as most come from animal sources Yes, many plant-based options available
How Your Body Uses It Breaks down to amino acids, then used as needed—does not target just skin or joints Also digested into amino acids, used throughout the body as needed
Who Might Benefit Most Anyone with low dietary protein, older adults, those seeking specific support for joints or skin Active individuals, gym-goers, people needing more protein in their diets
Worth the Hype? Helps fill gaps if not eating enough collagen-rich foods; not magic Solid choice for hitting protein targets—especially after exercise

 

Collagen vs. Multivitamins

Shifting the spotlight from collagen and its comparison with protein powders, it's now time to see how collagen stacks up against multivitamins. Here's an easy side-by-side, right down to the gritty details:

 

Aspect Collagen Supplements Multivitamins
What They Offer Supply amino acids; support body structures like skin, joints, and bones; contain no essential vitamins or minerals on their own Contain a mix of vitamins and minerals such as vitamin C, D, zinc, and iron; address broad nutrient gaps
Main Purpose Target protein intake for hair, skin, nails, and joint support Prevent or fill micronutrient deficiencies in the diet
Who Might Benefit Individuals who struggle with joint comfort, want skin hydration, or nail strength; those not getting enough collagen-rich foods Anyone with dietary gaps, fussy eaters, or those with absorption issues; busy over-35s juggling hectic lifestyles
Claims Approved by EFSA None for skin, hair, or joints, due to limited evidence Many micronutrient-related claims, like supporting immune function, are officially recognised
Can You Take Both? Yes; some products even combine collagen with extras like vitamin C, which helps collagen synthesis Yes; they serve different needs, so plenty of people use both daily
Replacement for Balanced Diet? No; best as a supplement if lacking specific proteins in your meals No; cannot fix an unhealthy or imbalanced diet alone
Confusion Factor Marketing often blurs the lines; collagen gets mistaken for a vitamin supplement May appear to "do it all" but lacks protein support for tissues like collagen does
Typical Additions Often paired with vitamin C or hyaluronic acid in blends Broad blends; rarely contain protein or amino acid support
Key Entities/Ingredients Hydrolysed bovine collagen, marine collagen, vitamin C (in blends) Vitamin D3, B12, magnesium, selenium, folic acid, zinc
Cost & Frequency Usually a daily powder, capsule, or drink; cost varies by type, with marine sources often dearer Standard once-a-day tablet; cost depends on brand and spectrum of nutrients

 

Collagen vs. Omega-3 Fatty Acids

Choosing between collagen and omega-3 fatty acids gets confusing fast. Many folks my age ask me: do they do the same job? The answer is simple—no. They target different parts of your body, much like a plumber versus an electrician. Here's a clear breakdown for all you reluctant health enthusiasts out there who don't want to waste money or time.

 

Feature Collagen Supplements Omega-3 Fatty Acids
Main Source Animal connective tissue
(beef, chicken, fish skin, bones)
Fish oil, cod liver oil,
Algal oil, Flaxseed
Main Function Builds and repairs skin, hair, nails, joints, and bones
Structural support
Supports heart, brain, eyes, and joints
Anti-inflammatory
Key Nutrients Collagen protein (mainly types I, II, III)
Amino acids: glycine, proline, hydroxyproline
EPA, DHA, ALA (essential fatty acids)
Backed by Health Authorities? Some support for skin and joint health,
less evidence for other claims
Extensively recommended by NHS, British Heart Foundation, and EFSA for heart health
Joint Health Mechanism Supports cartilage structure and cushioning Reduces joint inflammation
Cardiovascular Benefits Not proven Strong evidence - lowers triglycerides,
may reduce blood pressure and risks of heart disease
Cognitive Benefits No confirmed effect May slow mental decline,
especially in ageing adults
Dietary Role Can help if diet lacks high-collagen foods Essential fats - must get from diet or supplements
Common Misconception Can replace omega-3s
- they can't
Can replace collagen
- they can't
Ideal for Those seeking firmer skin, stronger nails, and joint support Those wanting to support heart health, brain function, and lower inflammation
Who Should Consider? People with joint concerns, skin ageing, or thinning hair People who eat little oily fish
or have family history of heart trouble
Notable Limitations No essential fats
Can't support heart health
No structural protein
Can't give you better skin elasticity

 

Those who mix up collagen and omega-3s sometimes end up disappointed—their benefits are chalk and cheese. Fish oil capsules often grace headlines about heart health. Collagen, on the other hand, gets the nod for glowing skin and comfy knees. Both play their part, but they operate in distinct lanes. For anyone in the UK, over 35, and a tad sceptical, your supplement shelf deserves careful thought. Never hurts to check your diet first, before splashing out on pills and powders.

How to Choose the Right Collagen Supplement: A Comprehensive Guide

Picking the right collagen supplement can be tricky. It's not just about grabbing any bottle off the shelf. Here's how to make a smart choice:

  1. Look for hydrolysed collagen on the label. This type means your body absorbs it better.
  2. Check the source: fish, cattle, pigs, or chickens. Pick one that suits your diet and allergies.
  3. Aim for supplements with at least 5–10g of collagen per dose, as Andrea Soares suggests.
  4. Vitamin C is a friend to collagen. Find a supplement that includes it to boost collagen synthesis in your body.
  5. Go for third-party tested supplements. This ensures what you're taking is safe and effective.
  6. Collagen comes in powders, liquids, tablets, and gummies. Choose the form you prefer but watch out for sugars in gummies.
  7. Price matters, but so does quality. Cheaper options might not provide the benefits you're looking for.
  8. Think about extra ingredients they add in supplements like vitamins or minerals that support skin elasticity and joint health.

Include collagen supplements as part of a balanced diet. Track changes in skin elasticity and joint health over time. This tip can help you decide if the supplement benefits your body.

How to Choose Between Collagen and Other Supplements

Start by looking at what you want for your health—do you crave healthy joints, better skin texture, or energy for busy days? Chat with your doctor about amino acids, collagen peptides, and other nutritional supplements to help pick the best fit.

Assessing your health goals

Set your sights on what matters most. Maybe you want smoother skin, less knee pain, or stronger nails. Have you observed changes in your skin hydration or joint comfort recently? If discomfort in the joints nags you each morning, collagen supplements may help by supporting healthy connective tissue.

Some people see changes within two to three months; others notice nothing at all. Robert Erskine says everyone reacts differently.

If thinning hair is getting under your skin, hydrolysed collagen and vitamin C could boost hair strength. “Supplements should fit into a healthy lifestyle,” my wife Sam often reminds our clients.

Understanding your body's needs

After you know your health goals, it's time to tune into what your body really needs. Collagen production starts to drop after age 20, so you may notice changes like drier skin or stiffer joints as the years pass.

Sun exposure and habits like smoking can make this faster, eating away at collagen even more.

A healthy diet packed with protein often covers most people's needs for amino acids. For vegans or those avoiding animal products, plant foods can help support natural collagen synthesis but won't add actual collagen peptides since plants do not supply them.

Folks facing low bone mineral density or joint pain might look at extra options such as hydrolysed collagen powders or type II supplements. People under cancer treatment or with autoimmune diseases should check with their doctor before making changes, as safety evidence is thin for some situations.

Supplements come in various forms: gummies, drinks, and powders—each absorbed differently by the digestive system. Always check ingredient purity; rules from UK regulators don't catch everything on shop shelves yet!

Potential Risks or Limitations of Collagen Supplements

Plenty of collagen supplement claims sound promising. Sadly, no health promise is approved by the European Food Safety Authority (EFSA) yet, since there isn't enough evidence. Many scientific studies on collagen are paid for by supplement businesses, which raises concerns about bias and may affect how results are reported.

For example, in 2023, a journal flagged a paper with five out of seven authors tied to those same companies. The article now sits under investigation for hiding such links from readers.

Most collagen supplements come from animal connective tissues like skin and bones. This can cause environmental problems—think deforestation in Brazil linked to cattle farming. Some products might also hold toxins or heavy metals if not well checked at the source.

Supplements don't face strict rules from bodies like the MHRA; ingredient quality may swing wildly between brands or even batches of the same brand. Once eaten, your stomach breaks down hydrolysed collagen into amino acids, so it's not certain these bits reach places like your joints or skin where you want them most.

Even though experts studied risks around prion diseases and gelatine (a cousin to collagen), EFSA concluded that risk as nearly zero unless worst-case scenarios play out.

Conclusion

Choosing between collagen protein and other dietary supplements can feel like picking a favourite dessert, tricky but personal. If skin elasticity or joint health tops your list, hydrolysed collagen might be worth a try.

Those after broad cover should stick with a balanced diet, multivitamin pills, or omega-3 capsules. Talk to your doctor or nutrition adviser before changing what you take. In the end, one size rarely fits all in healthy living—mix and match safely for best results.

For an in-depth understanding on selecting the most suitable collagen supplement for your needs, refer to our comprehensive guide here.

FAQs

1. What are collagen supplements and how do they compare to other nutritional supplements?

Collagen supplements, often in the form of collagen peptides or hydrolysed collagen, are a popular choice in the supplement industry for those seeking improved skin health and elasticity. They differ from other nutritional supplements as they specifically provide amino acids that support collagen production within the body.

2. How does vitamin C relate to collagen absorption and synthesis?

Vitamin C plays a key role in enhancing collagen absorption and aiding its synthesis in our bodies. It's like a backstage crew member at a concert, making sure everything runs smoothly!

3. Can I get my daily dose of type II collagen from food sources?

Indeed you can! Bone broth is one tasty example of a food rich with type II collagen, which supports joint health and bone health too.

4. Are there any benefits to taking hydrolysed collagen over other forms?

Hydrolysed Collagen or Collagen Hydrolysate is easily absorbed by the body due to its smaller size compared to non-hydrolysed types of collagens such as Type I, III, IV & V collagens; this makes it an attractive choice for many folks keen on wrinkle reduction or connective tissue support.

5. Is there any evidence supporting the use of Collagen Supplements for rheumatoid arthritis or osteoarthritis (OA)?

While some randomised controlled trials have shown promising results regarding pain relief in OA patients after using certain types of collagens , more research is needed before we can say "Eureka!"

6. Do FDA regulations apply to all these different types of collagens including powders, drinks, gummies etc?

Yes indeed! The U.S Food and Drug Administration (FDA) oversees all dietary supplement products under their broad umbrella - so whether you're sipping on your morning cuppa with added collagen powder or chewing on your favourite fruity gummy bear filled with goodness – they've got you covered.

Lean Greens was founded in 2012 by Tim and Sam Goodwin. We started with a simple mission: help busy people eat more vegetables easily. Our company has grown from that initial idea to a recognised nutrition brand across the UK. We create supplements that support healthy habits. Our first product was Super Greens powder. It set the standard for an easy, tasty greens drink. Since launching it, we have introduced other products like Drift Off, Amber Boost, and Collagen Greens. Each product meets real-life needs. They are quick to use and taste great. Operating from our base in the UK, we have sent out over three hundred thousand orders. We have helped many individuals maintain daily health routines. We contribute to nutritional knowledge in publications and speak at major wellness events. This engagement strengthens our expertise in nutritional science.

Disclosure: This content is informational and is not a substitute for professional medical advice. Please consult a healthcare professional before starting any new supplement regimen. The article is based on scientific research including randomised controlled trials and reputable studies. No affiliate or sponsorship ties influence the content.

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