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How collagen supports hair growth

  • Provides Amino Acids That Can Be Used to Build Hair

Hair is primarily made up of the protein keratin.

Your body uses several amino acids to build keratin — some of which can be found in collagen

When you consume collagen and other proteins, your body breaks them down into amino acids that are then used to build new proteins and compounds

There are 11 nonessential amino acids that your body can make and 9 essential ones that you need to obtain from your diet. Collagen is primarily made up of 3 nonessential amino acids: proline, glycine, and hydroxyproline

Proline is also the main component of keratin. Therefore, consuming proline-rich collagen should provide your body with the building blocks it needs to create hair

  • Helps Fight Damage to Hair Follicles

Collagen can act as an antioxidant and fight damage caused by free radicals.

Free radicals are compounds that develop in your body as a result of stress, air pollutants, smoking, poor dietary choices, alcohol, and other environmental influences. Too many free radicals can harm your cells, proteins, and DNA

Research shows that free radicals may also damage hair follicles. Since your body’s defence against free radicals decreases with aging, older adults are especially susceptible to hair damage

To fight free radicals and promote healthy hair, your body needs antioxidants. Since collagen protects the layer of skin that contains hair roots, it may help prevent age-related hair loss and thinning

  • May Help Slow Greying

Due to its antioxidant properties, collagen may be able to fight cell damage and slow greying.

Age-related hair greying is largely influenced by genetics, but free radical damage to the cells that produce hair colour may also play a role

As you age, the cells that produce the melanin pigment that gives your hair its colour naturally begin to die. However, free radicals that result from poor diet, stress, and environmental pollutants can damage melanin-creating cells as well

Without enough antioxidants to fight free radical damage, your hair may begin to grey. In fact, one test-tube study found that the antioxidant activity of grey hair follicles was much lower than that of hair follicles that still contained pigment

Since collagen has been shown to fight free radicals in test tubes, it may, in theory, help prevent damage to cells that produce hair colour. As a result, it may prevent premature greying or slow down age-related greying

Nevertheless, research on the antioxidant effects of collagen in humans is currently lacking.

Free radical damage to cells that produce hair colour may accelerate greying to some extent. Since collagen can act as an antioxidant, it may be able to fight this damage and slow greying.

  •  Easy to Add to Your Routine

You can add collagen to your diet through foods or supplements.

Since it makes up the connective tissue of mammals, it’s found in the skins, bones, and muscles of chicken, beef, pork, and fish.

Broth made from animal bones contains both collagen and Gelatin, a cooked form of collagen. This bone broth can be sipped as a drink or used as the base for soups (see a good recipe here)

In addition, eating foods high in vitamin C may boost your body’s natural collagen production. Oranges, bell peppers, Brussels sprouts, and strawberries are excellent sources of this vitamin

Lastly, collagen can be taken as supplemental pills or powder. Most collagen supplements are hydrolysed, meaning they’re already broken down and easier to absorb. You can order your supply of Health Nut’s, imported, preservative free, pure beef collagen powder here.

Collagen powder is flavour- and odourless and can be added to smoothies, coffee, and other hot or cold liquids. Flavoured varieties are available as well, but these may have other additives in, so read the label carefully.


Collagen can be found in foods, such as bone broths and animals’ meats, including the skin. Collagen supplements are available as well, many of which contain collagen that has already been broken down, making it easier to absorb.

  • Snippets from industry professionals on the benefits of collagen for hair growth.

Increases Elasticity

According to celebrity stylist Ken Pavés, collagen is an amino acid, and hair follicle cells use amino acids to produce keratin protein which promotes hair growth, strength, and elasticity. “Collagen helps to strengthen the hair and elasticity and improves its overall quality, and you also get the added benefits of Omegas 3 and 6 which are great for hydrating hair.”


Dr. Melissa Anzelone, ND for Nutrafol; a daily hair growth supplement, explains that in collagen supplements collagen supports a healthy digestive tract to protect and heal the lining of the gut leading to maximum protein absorption—thus, healthier hair.

In addition to making way for a healthy digestive tract, collagen in daily supplements work in synergy with components like hyaluronic acid to support, moisturize, and rebuild the structure of the dermis of the skin and the environment surrounding the follicle. This also supports the blood vessels in the dermis, which allows for better diffusion of nutrients to the follicle leading to moisturized hair.

Promotes Hair Growth

According to Dr. Julie Russak, brand ambassador for NeoCell, the integrity of collagen is affected by both – the natural slowdown of collagen production and the accelerated breakdown of collagen from things like sun damage, alcohol, and excess sugar in our diet all contribute to the breakdown of the structure of our skin, hair, and nails. On top of the breakdown of collagen, hair loss specifically can also be caused by iron deficiency, auto-immune diseases, low thyroid, hormonal imbalances, and the natural production of the hormone dihydrotestosterone (DHT) which can cause hair to grow back thinner and fragile if produced in excess. “So the incorporation of a daily collagen supplement can also aid in hair regrowth, as hair health starts from the inside.” Says the dermatologist who also serves as the founder of Russak Dermatology Clinic and Russak+ Aesthetic Center in NYC.

Regenerates the Follicle

Dr. Anzelone, adds that collagen helps with hair growth and hair regeneration since it is a natural antioxidant. “Normally, free radicals are produced via metabolic processes. These free radicals damage the hair follicles and lead to hair loss. Collagen neutralizes the free radicals, allowing hair to grow normally,” says Dr. Anzelone.

I have been using collagen powder since 2016, for thinning hair and nails as well as painful joints from sport.. My hair is thick and continues to grow, astounding my hairdresser with all the new hair that grows in between my existing hair! My nails are strong and I have no joint pain in my knees any longer. If I neglect to take my collagen for a period of 3 weeks or longer I can feel the effects in my joints! I will not go without it!