Lineage Guide

The Ultimate Guide to
Animal-Based Collagen

Benefits, Types, and How to Use It

By The Lineage Team Fact Checked: Rachael Ajmera, MS, RD 15 min read

Collagen might just be one of the most buzz-worthy supplements in the wellness world, and for good reason. Not only is collagen the most abundant protein in the entire body, but it also plays a central role in keeping your skin smooth, your joints cushioned, your gut strong, and your muscles working efficiently. But with so many different health claims out there, separating the collagen facts from fiction can get pretty tricky.

In this ultimate guide to animal-based collagen, we’ll break down everything you need to know, starting with what is collagen, why your body needs more of it as you get older, and what to look for when selecting a high-quality supplement. Plus, we’ll cover how to make the most of it in your daily routine, whether you’re an athlete, following a specific diet, or just aiming to feel your best.

What Is Collagen?

Collagen is the most abundant protein in the body, serving as structural support for the skin, bones, muscles, tendons, and ligaments. It acts like a glue that holds everything together, providing strength, support, and elasticity to the connective tissues throughout your body.1 Your body naturally produces collagen by pairing together certain amino acids, which are the individual building blocks of protein. Nutrients like vitamin C, copper, and zinc are also needed to help boost collagen production throughout the body.1

~1%Decline in collagen production per year after age 25
28Types of collagen discovered in the human body
90%Of total body collagen is type I alone

Unfortunately, as you get older, collagen synthesis starts to slow down — usually by about 1% each year after age 25 — which can lead to signs of aging like sagging skin, stiff joints, and slower wound healing.2 In the past, this was less of an issue, as traditional cultures regularly consumed collagen-rich cuts of meat and slow-simmered broths. But today, these ingredients have been largely replaced in the modern diet by ultra-processed foods and boneless, skinless meats stripped of their nutrients. As a result, many people are missing out on the essential amino acids and micronutrients needed to keep collagen production going strong.

This is where collagen supplements come into the picture. By upping your intake through supplementation, you can help support healthy aging and help keep things strong and smooth, especially as you get older. Plus, collagen supplements may even offer other benefits, including support for your hair, skin, and gut health, all of which we'll explore more in a bit.

Types of Collagen

Out of the 28 different types of collagen that have been discovered, just a handful make up the bulk of what’s actually in your body. Here’s a quick breakdown of the most common types and why they’re important:1

Most Abundant

Type I

When it comes to collagen, type I definitely takes the lead, accounting for over 90% of the collagen in your entire body. It’s found throughout the skin, bones, tendons, and ligaments and helps provide strength, structure, and support to the connective tissues.3

Joint Specialist

Type II

Type II collagen is found mostly in the cartilage, making it essential for joint health and mobility. It provides the structure and elasticity needed to support smooth, pain-free movement in areas like the knees, hips, and spine. However, it’s often missing from collagen supplements on the market, which tend to focus more on types I and II instead.4

Structural Partner

Type III

Type III collagen is found in the skin, blood vessels, and internal organs. It works alongside type I collagen to support the structure of connective tissues, helping keep skin firm and organs running smoothly.5

Foundation Layer

Type IV

This type of collagen hangs out in the basement membranes, aka the thin membrane layers that support your skin and organs. It helps keep things in place and working efficiently, especially in spots like your skin and kidneys. But while type IV is important for providing structural support, types I, II, and III do most of the heavy lifting when it comes to skin and joint health.6

Benefits for Health & Beauty

From supporting smoother skin to promoting stronger joints and a happier gut, collagen may deliver a long list of benefits for the entire body, top to bottom. Try out our collagen pop quiz here and read on for more potential health perks that are backed by science.

01

Skin

Like invisible scaffolding hidden just beneath the surface, collagen helps keep your skin smooth, firm, and supple. In fact, as collagen levels naturally decline with age, your skin can become thinner, drier, and more prone to wrinkles. A review of 19 studies found that supplementing with hydrolyzed collagen — a type of collagen that has been broken down for better absorption — for just 90 days was effective at improving signs of skin aging, leading to less wrinkles and improved skin hydration and elasticity.7 Not only that, but other research shows that collagen can also enhance skin density, which could help reduce sagging and wrinkles as you get older.

02

Joints

Collagen is a key component of the cartilage that allows your bones to move smoothly and helps keep your joints strong and flexible. But as collagen levels dip over time, cartilage can wear down, leading to stiffness and discomfort. In addition to promoting bone strength and density, studies show that collagen supplementation may also reduce joint stiffness and pain, improve mobility, and enhance functionality.11 As a bonus, it’s also been linked to decreased pain related to osteoarthritis, with little to no risk of side effects.

Check out some of the top foods to combat joint pain according to Paul Saladino here.

03

Hair & Nails

For longer locks and stronger nails, consider adding a scoop of collagen to your beauty routine. Collagen helps support the hair follicles and nail beds to keep them strong and promote growth. In a 12-week study, researchers found that a supplement containing hydrolyzed collagen and vitamin C significantly improved scalp health, boosted hair count by almost 28%, and enhanced the overall appearance of hair. In another study, collagen peptides (aka hydrolyzed collagen) boosted nail growth by 12%, reduced broken nails by 42%, and led to visibly healthier nails after 24 weeks.14

04

Gut Health

Collagen is a game changer for gut health, helping promote a healthy intestinal barrier, which could reduce the risk of leaky gut, a key culprit of chronic inflammation. Packed with amino acids like glutamine, collagen may help support gut health, improve digestion, and boost nutrient absorption. In one small study, 93% of women experienced relief from bloating and mild digestive issues after taking just 20 grams of collagen daily for eight weeks.18 In another study, collagen altered the gut microbiome of mice by promoting the growth of several beneficial strains of bacteria.

05

Muscle & Recovery

Collagen is a must-have for muscle growth and recovery, delivering amino acids that are essential for rebuilding muscle tissue after exercise, such as glycine and proline. For healthy adults, supplementing with collagen can also support muscle repair, reduce recovery time, and even promote the growth of lean muscle mass when paired with exercise. Plus, it may even support joint health, leading to less pain and discomfort during workouts. One study found that coupling collagen peptides with resistance training not only boosted fat-free mass and strength more than just training alone, but it also ramped up levels of muscle-building proteins after just 12 weeks.23

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How Collagen Works in the Body

Your body can make collagen all on its own, but it needs the right building blocks — starting with amino acids like glycine, proline, and hydroxyproline. These are the raw materials your body strings together to build the collagen fibers that keep your skin smooth, your joints cushioned, and your tissues strong and healthy.1

How collagen works in the body

But here’s the catch: your body can’t do it without help. Other nutrients, like vitamin C, have been shown to support collagen production, converting those amino acids into collagen your body can actually use. Without enough vitamin C, collagen synthesis slows down or even stalls completely, no matter how many amino acids you’re putting on your plate.24 That’s why our collagen includes vitamin C sourced from acerola berries, an ingredient rich in bioflavonoids to help enhance absorption. Unlike most brands that rely on synthetic vitamin C from citric acid, acerola cherry is the most natural form of vitamin C available in powdered form.

A few other minerals may help promote collagen production as well. Zinc, for example, is found mostly in meat and seafood and helps activate the enzymes needed for collagen formation, whereas copper-rich fish, nuts, and seeds assist in strengthening the collagen matrix. To maintain healthy collagen levels, it’s important to make sure you’re getting a steady supply of all of these nutrients, either through your diet, supplementation, or a mix of both.

Vitamin CConverts amino acids into collagen fibers your body can use
ZincActivates the enzymes needed for collagen formation
CopperStrengthens the collagen matrix once it’s formed
GlycinePrimary amino acid in collagen’s triple-helix structure
ProlineCritical for collagen fiber stability and flexibility

Best Sources of Collagen

When it comes to getting more collagen into your daily diet, food-based sources are a solid place to start. Slow-cooked bone broth is one of the most traditional (and tasty) options, as it’s rich in gelatin, which your body breaks down into collagen-building amino acids. Gelatin itself (found in homemade jellies, gummies, and even certain desserts) is also naturally rich in collagen and can be a versatile addition to your routine. Cuts of meat that include connective tissue, like oxtail, short ribs, and skirt steak (Paul Saladino’s favorite collagen-rich cut of steak!) are also stellar sources of collagen. Even crispy salmon skin or roasted chicken skin can give you a collagen boost while adding some extra flavor and texture to your meals.

Sources of collagen:

  • Slow-cooked bone broth
  • Meat with connective tissue (short ribs, oxtail, skirt steak, etc.)
  • Gelatin
  • Animal skin (chicken skin, fish skin, pork skin, etc.)
  • Supplements (powders, capsules, liquid)

But as Paul Saladino says, “Ground beef is amazing, but it’s missing something: type II collagen.” Collagen supplements can help fill in the gaps and offer a more concentrated and convenient way to bump up your collagen intake, especially if you’re not eating nose-to-tail on a regular basis. Collagen powders are especially popular, as they’re easy to mix into coffee, smoothies, and even baked goods. Capsules and liquid options are also available if you prefer a ready-to-go solution, though they typically contain a lower dose per serving. We’ll break down exactly what you should look for when shopping for supplements a little later, but remember to opt for high-quality, grass-fed or wild-caught sources whenever possible, with type-specific blends if you’re aiming for targeted support.

Collagen Supplements: Do They Really Work?

Collagen supplements aren’t just a trendy health fad. In fact, the science behind them is actually pretty solid. Research shows that collagen peptides may pack some serious perks for your skin, joints, and muscles, with human studies demonstrating a wide range of benefits. Specifically, research suggests that collagen supplements may be associated with:

  • Increased skin elasticity
  • Decreased wrinkles
  • Improved skin hydration
  • Reduced joint stiffness and pain
  • Better joint function
  • Increased hair and nail growth
  • Improved scalp health
  • Less nail breakage
  • A healthier intestinal barrier
  • Decreased bloating

A big factor in collagen’s effectiveness is its bioavailability, or how well your body can actually absorb and use it. Hydrolyzed collagen takes the cake over other sources of collagen (like gelatin) because it’s broken down into smaller peptides that are easily absorbed by the body. This makes it easier to put it to work in your skin, joints, and muscles, giving you much faster and better results.27

On the flip side, gelatin hasn’t been broken down as much, meaning that it’s not absorbed by your body as efficiently. While gelatin can still be beneficial and easy to incorporate into your cooking rotation, hydrolyzed collagen is your best bet if you’re looking for a supplement that is easy to absorb and delivers real results.

Check out this video for Paul Saladino’s take on whether or not you should take collagen supplements.

How to Choose a High-Quality Collagen Supplement

With so many different products to pick from, choosing a high-quality collagen supplement can be challenging. Luckily, knowing exactly what to look for can make it much easier to navigate the supplement section. Here are a few key factors to consider:

Source

Look for collagen sourced from responsibly raised animals to ensure higher quality and fewer contaminants. Bovine collagen is a great option because it contains a blend of both type I and type III collagen to support skin, gut, and joint health.

Hydrolyzed vs. non-hydrolyzed

Collagen peptides have been hydrolyzed, or broken down into smaller molecules that are easier for your body to absorb, giving you the most bang for your buck.

Form

Collagen comes in all kinds of forms, including powders, liquids, and capsules. While all can be effective, keep in mind that powdered collagen typically packs the highest dose per serving.

Grass-fed vs. conventional

Go for grass-fed collagen whenever possible. Not only is it a cleaner, more nutrient-rich source of collagen, but it also usually means fewer additives and better animal welfare.

Ingredients

Skip the artificial additives and stick to products that contain just one ingredient: pure collagen. Remember: you don’t need fruit punch flavoring or a unicorn label. For real results, you need bioavailable collagen sourced from well-raised animals.

Testing and transparency

Not all collagen is created equal. Buy from brands that walk the talk and use third-party testing to ensure your collagen is clean, safe, and free of heavy metals or other harmful contaminants.

Nose-to-tail

Choosing nose-to-tail collagen gives you a full spectrum of collagen types for more well-rounded, head-to-toe support.

Sustainability

Select collagen sourced from regenerative farms, like those used by Lineage Provisions, which support animal welfare and eco-friendly farming while also nourishing your body.

Wondering how our collagen stacks up against other brands on the market? Check out this video to see what sets it apart!

How to Use Collagen

Collagen is easy to incorporate into your daily routine and can even be added to a variety of foods and drinks without changing their taste or texture. Try adding a scoop to your morning cup of coffee, stirring it into tea, or blending it into smoothies and shakes (like Saladino’s Healthy Skin Smoothie!) for a protein-packed boost. Collagen also works well whisked into full-fat yogurt, soups, or even baked goods. Or, simply mix it into water or a glass of raw milk for a quick, no-fuss way to squeeze in your daily dose. Because unflavored collagen powder dissolves easily in hot and cold liquids alike, it can be a convenient way to support your health, with minimal effort required.

Works great in:

Morning coffee Tea Smoothies & shakes Soups & broths Baked goods Raw milk Full-fat yogurt Water

How Much Collagen Should You Take Daily?

There’s no one-size-fits-all dose when it comes to collagen, but research suggests that most people start seeing benefits with around 10-20 grams of hydrolyzed collagen peptides per day. For general support, 10 grams per day is a solid starting point, but if you’re aiming for more targeted results, such as muscle recovery or joint repair, studies often use up to 20 grams per day. Nail health improvements have been noted even at lower doses of around 2.5 grams, especially when taken on a regular basis.

Collagen can be taken at any time of day, but most people choose to take it first thing in the morning or after an intense sweat session to help speed up recovery. Pairing your supplement with a balanced meal or snack can also help provide nutrients that help naturally boost collagen production, like vitamin C, copper, or zinc. Some people even choose to divide their daily dose into a few smaller servings to provide their body with a steady stream of collagen throughout the day.

2.5g
Hair & Nail Support
Minimum effective dose for nail and hair health
20g
Muscle & Joint Recovery
Used in targeted therapeutic studies

When to Expect Results from Collagen

Collagen supplements aren’t a quick fix or an overnight miracle. But with consistent use, many may start noticing subtle improvements within just a couple of weeks, especially for skin hydration and elasticity. Improvements in joint and muscle health may take a little longer, often around 12 weeks or more of daily use. And for enhancing nail or hair health, studies range quite a bit, with benefits popping up anywhere from 12-24 weeks. Like any supplement, consistency is key. Additionally, keep in mind that results can vary from person to person and other factors (like your lifestyle and diet pattern) may also play a role.

That said, many real Lineage Provisions customers report feeling a difference not long after adding collagen to their routine. Tom, for instance, noticed an immediate change when he started blending our 100% Grass-Fed Nose-to-Tail Collagen into his smoothies. James shared that his nails became noticeably stronger just a month after pairing collagen with Animal-Based Complete. And Nancy reported improvements in both her skin and joint health within just a few days of starting supplementation. While everyone’s timeline is different, it’s clear that consistent use can lead to serious benefits, maybe even sooner than you might think.

See more reviews from real customers.

2–4 weeks
Skin hydration & elasticity improvements begin
4–8 weeks
Gut health improvements and bloating relief
8–12 weeks
Noticeable joint and muscle support
12–24 weeks
Hair and nail growth and strength improvements
Real Customer Results

Customers report changes within weeks

Tom noticed an immediate difference blending our collagen into his smoothies. James’ nails became noticeably stronger in a month. Nancy saw improvements in both skin and joint health within days of starting.

Read Customer Reviews →

Myths & Misconceptions

With so much buzz out there about collagen, it’s no surprise that a few myths have slipped into the conversation. Here, we take a closer look at the facts to finally set the record straight.

Collagen & Your Lifestyle

No matter your lifestyle or health goals, collagen can be a powerful addition to your daily routine. Here are some ideas for how to use collagen based on your specific needs.

For Skin Health

A scoop of collagen each day can be your secret weapon for supporting healthier, more hydrated skin. In fact, regular supplementation has been shown to promote skin elasticity and slow signs of aging. Make it part of your skincare routine for an easy way to naturally support your skin’s structure.

For Athletes

Whether you’re a competitive athlete or a weekend warrior, collagen is a must-have for your gym bag. In addition to promoting strength and improving body composition when combined with exercise, it may also promote joint health, which could help you stay injury-free. It can also fuel your muscles with a steady stream of glycine, proline, and other amino acids essential for post-workout recovery.

For Aging

As you get older, collagen production starts to slow down, which can lead to wrinkles, joint stiffness, and other signs of aging. Adding a high-quality collagen supplement to the mix can help counter these effects to support healthy aging from the inside out. Collagen is even sometimes referred to as “nature’s facelift,” thanks to its ability to promote skin health and elasticity.

For Keto, Paleo, or Carnivore Diets

Collagen supplements can be seamlessly added to keto, paleo, and carnivore diet plans. Not only can collagen complement any ancestral eating approach, but it also helps balance the nutritional profile of muscle meats with amino acids you might be missing out on, like proline, glycine, and hydroxyproline.

FAQs About Collagen

Curious about how collagen really works? Here are a few frequently asked questions and collagen facts to help clear things up.

Conclusion

Collagen might seem like a trendy supplement, but its roots run deep; it’s woven into ancestral diets and even the very structure of your own body. From supporting your skin, joints, and muscles to promoting hair and nail health, high-quality collagen can offer real benefits when used consistently. Whether you’re looking to age gracefully, recover faster, or simply fill in the nutritional gaps left by modern diets, there’s no doubt that collagen can be a powerful part of your wellness routine.

Ready to experience the difference?

Shop Nose to Tail Collagen →
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