Does collagen help hair growth?

Does collagen help hair growth? A deep dive into the science

Collagen is ofte­n considered a wonder prote­in, with purported health bene­fits ranging from skin and nail improvements to joint relie­f. Recently, many have also turne­d to collagen for its potential role in promoting hair growth. This article­ delves into the conne­ction between collage­n intake and increased hair growth, using scie­ntific research as well as practical tips on incorporating collage­n supplements into your daily routine.

Does collagen help hair growth?

The Relationship Between Collagen and Hair Growth

The growth of hair is a complicate­d process that results from seve­ral factors, including hormones, genetics, and the­ overall health of the scalp. According to some­ experts, collagen may also contribute­ significantly to this process.

What does collagen do for hair?

Healthy hair relies on collagen, an esse­ntial protein builder made up of amino acids. Collage­n forms the structure of our hair and protects it from fre­e radical damage while pre­venting premature graying. This ve­rsatile protein also contributes to the­ connective tissue laye­r that surrounds hair follicles, potentially preve­nting age-related thinning.

The Impact of Collagen on Hair Growth Cycle

Collagen is a pote­ntial game-changer for hair growth. It delive­rs crucial amino acids required for keratin production, giving your locks the­ strength and support they nee­d to flourish. More than that, collagen safeguards hair follicle­s from free radical harm that can cause hair thinning. 

Additionally, collagen posse­sses antioxidant properties that can aid in pre­serving the well-be­ing of cells accountable for the production of hair pigme­ntation. This can reduce graying relate­d to aging. Although further research is impe­rative to fully understand how collagen impacts hair growth cycle­s, its capacity to nourish and shield each strand makes it a viable­ ingredient for maintaining lustrous and strong hair. 

Does Collagen Help Hair Growth?

Does Collagen Help Hair Growth?

Some people claim collagen can benefit hair growth. It is believed to assist in producing keratin, the main protein found in hair, and combat damage caused by free radicals. Additionally, collagen’s antioxidant properties positively affect age-related graying and premature graying caused by damage to melanin-creating cells. However, it is important to note that further research is required to comprehensively understand the impact of collagen on hair growth, as current studies are limited.

Scientific Studies and Findings

In recent scientific studies, the effects of collagen on hair growth have been investigated. One study focused on fish-derived collagen peptides (CPs) extracted from Mozambique tilapia scales. The researchers found that CPs significantly enhanced hair regrowth and the proliferation of human dermal papilla cells (hDPCs), which play a crucial role in hair follicle development. 

Additionally, oral administration of CPs to mice resulted in notable improvements in hair growth compared to a negative control group and a group treated with finasteride, a commonly used medication for hair loss. The study also revealed that CPs increased the expression of hair growth factors and upregulated the Wnt/β-catenin pathways known to promote hair growth while downregulating the BMP pathways associated with inhibiting it.

Factors Affecting Hair Growth

Other Factors Affecting Hair Growth

While collagen certainly plays a role in maintaining healthy hair growth, other factors should not be overlooked…

Nutrition and Hydration

A balanced diet with essential nutrients like vitamins A, C, and E, biotin, zinc, and omega-3 fatty acids can contribute to overall hair health…

Hormonal Balance and Genetics

Hormonal imbalances or genetic predispositions can affect individual variations in hair growth patterns. Consulting with healthcare professionals can help identify underlying causes or recommend appropriate treatments.

Scalp Health and Maintenance Practices

A healthy scalp provides a conducive environment for hair growth. Regular scalp massages, proper cleansing, and gentle hair handling are essential to maintain scalp health…

Does collagen help hair?

Absolutely! Collagen can indeed help improve your hair’s health. By increasing the body’s hair-building proteins, collagen supplements can contribute to longer and thicker strands. Moreover, collagen supports the hair follicle’s healthy structure, which might even help reduce the appearance of gray hair.

Does collagen really regrow hair?

No, collagen itself does not directly regrow hair. But it plays a crucial role in supporting hair growth by providing structural support to the hair follicle and maintaining the health of the dermis. It acts as a foundation for healthy hair growth by ensuring the proper functioning of the follicle. It’s important to consider factors such as maintaining a balanced diet, managing stress levels, and practicing good scalp care to stimulate hair growth.

How long does it take for collagen to improve hair?

In general, tangible improvements in hair can be seen within approximately four weeks of consistent collagen supplementation. However, continuing daily collagen supplementation for at least 12 weeks is recommended for the best and most significant results. 

Remember that individual response times may differ, so it’s important to be patient and consistent with your collagen regimen. Consulting with a healthcare professional or trichologist is always recommended for personalized advice on improving hair health.

How much collagen should I take?

Which type of collagen is best for hair growth?

Regarding hair growth, type 1 collagen from marine or bovine sources is often considered the best option. This type of collagen is rich in essential amino acids like proline, which can help thicken hair, reduce hair loss, and speed up growth.

The specific source of type 1 collagen may vary depending on personal preferences and dietary restrictions. Choosing high-quality collagen supplements or incorporating collagen-rich foods into your diet is always a good idea to support overall hair health.

How long does it take for collagen to work for hair loss?

Generally, it may take around 2-3 months of consistent collagen usage before any effects on hair loss become noticeable. However, it’s crucial to remember that the effectiveness of collagen in addressing hair loss is not guaranteed and can differ among individuals.

Results depend on factors such as the underlying cause of hair loss and individual response to collagen supplementation. It’s advisable to consult with a healthcare professional or trichologist for personalized guidance and to manage expectations regarding using collagen for hair loss.

Collagen hair growth before and after

Collagen hair growth before and after

Taking collagen for hair growth

Now that we understand collagen’s potential benefits for hair growth, let’s explore ways to incorporate it into our routine…

Dietary Sources of Collagen

Collagen can be obtained through dietary sources such as bone broth, fish, chicken, and egg whites…

Supplementation Options

Collagen supplements come in various forms like collagen peptides, powders, capsules, or drinks. It’s important to choose high-quality products from reputable brands…

Tips for Optimal Results

To optimize the effects of collagen on your hair growth journey, consider the following tips:

  • Pair collagen supplementation with a balanced diet rich in vitamins and minerals that support hair health.
  • Stay consistent with your collagen intake over several months to allow sufficient time for noticeable results.
  • Implement stress-management techniques, as chronic stress can adversely affect hair growth.


Collagen shows promise when it comes to supporting healthy hair growth by providing structural support and promoting the production of keratin. While more research is needed to fully understand its mechanisms and effectiveness, incorporating collagen into your routine may be worth considering. Remember that individual results may vary, so patience and consistency are key. Consult with healthcare professionals for personalized advice based on your specific needs.


How long does it take for collagen supplements to affect hair growth?

Like any supplement, the results may vary among individuals. Generally, after consistently using it for 2-3 months, you could begin to notice improvements in the health and thickness of your hair.

Can collagen help with hair loss?

Collagen can bolster hair health and growth, but it isn’t a miracle cure for hair loss. You should consult a healthcare professional if you suffer from significant hair loss.

What’s the best form of collagen supplement for hair growth?

There’s no definitive answer to this as the research is still developing. However, hydrolyzed collagen (collagen broken down into more easily absorbable amino acids) is often recommended.

Can I get enough collagen just from my diet?

While some foods are high in collagen, such as bone broth or fish, getting enough collagen from your diet can be challenging, particularly as you age. This is where supplements can be beneficial.

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