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Alex Manos | 05 Mar 2025 | Gut Health

Does Collagen Powder Work?

Does Collagen Powder Work? A Comprehensive Guide to Its Benefits and Effectiveness

In the world of health and wellness, collagen powder has quickly risen to fame, touted for its potential to improve skin health, strengthen hair and nails, support gut health, and even promote joint function. But with so many products flooding the market, one question remains: Does collagen powder really work?

In this comprehensive blog, we’ll dive deep into:

  • What collagen is
  • The different sources of collagen
  • Scientific evidence supporting its benefits for skin, hair, nails, gut health, and more
  • How collagen works in the body
  • Potential side effects and considerations

Let’s separate fact from fiction and find out if collagen powder lives up to the hype.

Spoiler alert, for those that can’t wait to the end of the article my recommended product is Collagen Powder by APE Nutrition.

What Is Collagen?

Collagen is the most abundant protein in the human body, making up about 30% of your body’s total protein. It’s often referred to as the “glue” that holds everything together because it’s a key structural component of:

  • Skin
  • Bones
  • Tendons and ligaments
  • Cartilage
  • Blood vessels
  • Hair and nails
  • Connective tissues

Collagen provides strength, elasticity, and structure. However, as we age—especially after our mid-20s—our natural collagen production starts to decline. This leads to visible signs of aging like wrinkles, sagging skin, and joint stiffness. Factors like sun exposure, smoking, stress, and poor diet can speed up this process.

That’s where collagen supplements—especially in powder form—come into play.

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Different Types of Collagen

There are 28 known types of collagen, but the most important for human health are:

  1. Type I:
    • Found in skin, bones, tendons, and ligaments
    • Provides structure and strength
    • Makes up about 90% of the collagen in your body
  2. Type II:
    • Found in cartilage
    • Supports joint health and cushioning
  3. Type III:
    • Found in skin, muscles, and blood vessels
    • Works alongside Type I for skin elasticity and firmness
  4. Type IV:
    • Found in the layers of skin
    • Supports filtration and cellular functions
  5. Type V:
    • Found in hair, placenta, and corneas
    • Plays a role in hair health and eye tissues

Most collagen powders contain Type I, II, and III, as these are the most beneficial for skin, joints, and connective tissues.

Sources of Collagen Powder

Collagen supplements are derived from animal-based or marine-based sources:

  1. Bovine Collagen (from cows):
    • Rich in Type I and III
    • Great for skin, bones, and muscle repair
  2. Marine Collagen (from fish):
    • High in Type I collagen
    • Absorbs more easily due to smaller particle size
    • Excellent for skin health and anti-aging benefits
  3. Chicken Collagen:
    • High in Type II collagen
    • Beneficial for joint health and cartilage repair
  4. Eggshell Membrane Collagen:
    • Contains Types I, V, and X
    • Supports skin, hair, and joint health
  5. Vegan Collagen Boosters:
    • While true collagen cannot be sourced from plants, some supplements contain plant-based ingredients like vitamin C, silica, and amino acids that help the body produce its own collagen.

Does Collagen Powder Work? Evidence-Based Benefits

1️⃣ Skin Health: Reducing Wrinkles & Improving Elasticity

One of the most well-researched benefits of collagen powder is its ability to improve skin health.

What the Research Says:

  • A 2019 systematic review published in Journal of Drugs in Dermatology analysed 11 studies involving over 800 participants. It concluded that oral collagen supplements significantly improved skin elasticity, hydration, and the appearance of fine lines and wrinkles after 8–12 weeks of use (source).
  • A 2020 study in Nutrients found that collagen peptides improved skin density and hydration, especially when combined with vitamins like C and E.
  • A 2023 systematic review (source) also had positive conclusions stating supplementation can improve skin hydration and elasticity. In addition, the long-term use of collagen yields more favorable effects on skin hydration and elasticity than the short-term use of collagen.

How It Works:

When you consume collagen powder, it’s broken down into amino acids and peptides. These compounds stimulate skin cells (called fibroblasts) to produce more collagen, elastin, and hyaluronic acid, which keeps the skin plump and hydrated.

2️⃣ Hair and Nail Strength

Many people notice that their hair grows faster and their nails become stronger after taking collagen.

What the Research Says:

  • A 2017 study published in Journal of Cosmetic Dermatology found that collagen supplements improved nail growth and reduced brittleness by 42% after just 24 weeks (source).
  • While direct research on hair growth is limited, collagen contains proline, an amino acid that’s a key building block of keratin, the protein that makes up your hair.

3️⃣ Joint Health and Reducing Joint Pain

Collagen plays a big role in maintaining healthy cartilage, which cushions your joints. As we age, collagen loss can lead to joint stiffness and even conditions like osteoarthritis.

What the Research Says:

  • A 2018 study in Current Medical Research and Opinion showed that athletes who took 10g of collagen daily experienced reduced joint pain after 24 weeks (source).
  • A meta-analysis in International Orthopaedics found that collagen supplements significantly reduced pain and improved joint function in people with osteoarthritis (source).

Why It Works:

Collagen helps reduce inflammation, supports cartilage repair, and may even stimulate the production of new joint tissue.

4️⃣ Gut Health: Leaky Gut and Gut Microbiome

Collagen is rich in glutamine, an amino acid that helps support the lining of the digestive tract. This is particularly important for people with conditions like leaky gut syndrome or IBS.

Potential Benefits:

  • Strengthens the gut lining: Collagen can help “seal” gaps in the intestinal wall, preventing undigested food and toxins from leaking into the bloodstream (a key issue in leaky gut) (source).
  • Supports the gut microbiome: Some early research suggests that collagen peptides can have prebiotic-like effects, supporting the growth of healthy gut bacteria (source).
  • Reduces inflammation: Collagen may help calm gut inflammation, improving symptoms like bloating, gas, and discomfort.

What the Research Says:

While direct studies on collagen and gut health are limited, its amino acid profile (especially glycine and glutamine) is known to support intestinal barrier integrity and reduce inflammation in the digestive tract.

5️⃣ Muscle Mass and Exercise Recovery

Collagen is a protein, so it naturally supports muscle repair and recovery after exercise.

What the Research Says:

  • A 2015 study in British Journal of Nutrition found that older men who took 15g of collagen peptides daily while participating in strength training gained more muscle mass and lost more fat compared to those who didn’t take collagen (source).
  • Collagen also helps reduce exercise-induced joint pain, making it popular among athletes.

6️⃣ Bone Health

About 90% of bone matrix protein is made up of collagen. As collagen levels drop with age, bones can become brittle, increasing the risk of fractures.

What the Research Says:

  • A 2018 study in Nutrients found that postmenopausal women taking collagen supplements had improved bone mineral density after 12 months (source).
  • Collagen may work by stimulating bone-forming cells (osteoblasts) and reducing bone breakdown.

📦 How to Choose the Right Collagen Powder

When shopping for collagen supplements, keep these tips in mind:

  1. Look for “Hydrolysed Collagen” or “Collagen Peptides”: This means the collagen has been broken down for better absorption.
  2. Check for Type I, II, and III Collagen: A combination covers skin, joints, and connective tissue benefits.
  3. Minimal Ingredients: Avoid products with unnecessary fillers, sugars, or artificial flavors.
  4. Third-Party Testing: Choose brands that are tested for purity and quality.

Are There Any Side Effects?

Collagen supplements are generally considered safe for most people, but some may experience:

  • Digestive issues like bloating or heartburn
  • Allergic reactions if you’re sensitive to fish, eggs, or other animal-derived ingredients

Always consult your doctor if you’re pregnant, breastfeeding, or have a medical condition.

Key Takeaways: Does Collagen Powder Really Work?

  • Yes, collagen powder works—especially for skin health, joint pain, nail strength, and potentially for gut support.
  • It’s backed by scientific research, particularly for reducing wrinkles, improving skin elasticity, and supporting joint health.
  • Results usually take 8–12 weeks to become noticeable, and consistency is key.
  • Combining collagen with nutrients like vitamin C (which helps with collagen synthesis) can enhance its effects.

If you’re looking to support healthy aging, improve your skin, reduce joint pain, or boost gut health, collagen powder could be a worthwhile addition to your wellness routine.

My recommended product is Collagen Powder by APE Nutrition.

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