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Biotin and Collagen for Hair Growth

Discover how biotin and collagen boost hair growth and strength with Davines’ natural, sustainable hair care solutions.

Updated on December 9, 2025 | 2 min read

Jaclyn LaBadia, Davines Writer

Investing in hair growth shampoos, serums and topical treatments can go a long way in supporting hair health and growing out your strands. But vitamins like biotin and collagen can give you an extra boost. If longer, healthier hair is what you seek, you’ve come to the right place. Because we’re breaking down everything to know about biotin and collagen for hair growth. Plus, the best tips and products for thicker, stronger hair, ahead now.

Key Takeaways

What to Know About Low Porosity Hair

Biotin boosts keratin and helps reduce hair thinning.
Collagen strengthens and supports healthy hair growth.
Together, they promote thicker, stronger hair.
A balanced diet and safe use of supplements enhance results.
Incorporate Davines' sustainable Naturaltech products for even stronger, healthier hair.

Biotin and Hair Growth

When it comes to supplements for hair growth, you’ve likely heard of biotin. It’s one of the most common ingredients found in hair vitamins. Biotin is a B vitamin that’s essential for the production of keratin, the protein responsible for healthy skin, hair and nails. And while it’s produced naturally, the body doesn’t always make enough of it. So if you're deficient in biotin, you'll likely notice hair breakage and thinning. In fact, hair loss is a major symptom of a biotin deficiency. So is biotin good for hair growth? For people who have an existent deficiency, yes, taking biotin can stimulate growth. But if you aren’t deficient in biotin, these supplements may not do much on their own.

Collagen and Hair Growth

Another common ingredient found in hair vitamins is collagen. Collagen is the most abundant protein in the body, and what gives skin and hair their shape, strength and elasticity. But collagen production slows with age, leading to visible hair loss as follicles get thinner and weaker. So is collagen good for hair growth? While it doesn’t directly speed up growth, it does support healthy follicles by boosting blood circulation to the scalp and promoting the production of keratin. So supplements can be especially helpful as the body’s supply declines with age. That said, collagen alone can only do so much.

Biotin vs. Collagen

The key to healthy hair is focusing on internal factors within the body, like vitamins, nutrients and proteins. And that’s where biotin and collagen come into play. But what are the differences between biotin for hair growth and collagen for hair growth? This table shows a detailed comparison between biotin and collagen, including their separate and combined impact on hair growth.

Biotin vs. Collagen

Biotin Alone

Collagen Alone

Used Together

What it Is

A B-vitamin (B7) for nutrient metabolism.

A structural protein that makes up hair, skin, and nails.

Often combined for hair and skin health.

Primary Function

Helps convert food into energy and supports keratin production.

Provides amino acids needed to build keratin, supporting hair structure.

Targets nutrient metabolism and structural support.

Role in Hair Growth

Helpful if someone is deficient by supporting keratin infrastructure.

Improve hair strength and elasticity by providing the building blocks for keratin.

Enhances hair thickness and reduces breakage more effectively than either alone.

Best for...

People with brittle hair due to biotin deficiency.

People with thinning hair from aging or weakened hair structure.

People with weak, thinning, or slow-growing hair.

Most Common Results

Fuller hair if deficiency-related.

Smoother hair, less shedding, stronger roots.

Improved fullness, reduced breakage, better texture and shine.

Time it Takes to See Results

8–12 weeks

8–16 weeks

Who Should Avoid it

People with high biotin levels and people taking medical lab tests, as it can interfere with results.

People with allergies to marine/bovine collagen.

People sensitive to either ingredient.

Can You Take Biotin and Collagen Together?

Not only can you take biotin and collagen together, for the best results, you absolutely should. Biotin boosts keratin production and collagen provides the structural building blocks for stronger hair strands. Because of this, the best way to take biotin and collagen for hair growth is together. When combined they create a synergistic effect. Biotin helps your body make keratin, and collagen supplies the structural support for it. This leads to a healthy scalp, with stronger hair strands that are less prone to breakage—the optimal environment for hair growth.

Nutrition for Hair Growth

The best way to promote healthy hair growth is by taking care of your hair from the inside with a well-balanced diet. Certain nutrients are essential for growth, so a hair-healthy diet is a must. This includes eating healthy fats, lean proteins, whole grains, and a wide variety of fruits and veggies. Boost your collagen intake through collagen-rich foods like bone broth, turkey, egg whites and fish. And consider focusing on the biotin sources such as avocado, sweet potato, salmon, tuna, sardines, broccoli, spinach, almonds, mushrooms, legumes, walnuts, sunflower seeds and bananas.

Tips for Biotin and Collagen

There are some things to consider when using biotin and collagen for hair growth. Be sure that any supplements you take are tested by a third-party lab to ensure quality. And it’s important to note that biotin supplements can interfere with certain lab tests, causing incorrect results. Choose collagen that’s hydrolyzed of marine origin, since it's the purest and most easily absorbed. Similarly, taking collagen with vitamin C also helps with absorption. And note that collagen is not suitable for vegetarians or vegans, as it comes from cows, pigs or fish.

Topical Solutions for Hair Growth

Using topical treatments in addition to taking biotin and collagen for hair growth will give you the best chances at growing longer, stronger strands. Enter NATURALTECH, a complete program of natural hair growth products bridging sustainable beauty practices with cutting edge technology. NATURALTECH is formulated to prevent and support the most common scalp and hair conditions, and to be used in combination with treatments carried out with a massage ritual at your local Davines salon. Working in balance with the products, a massage reactivates the microcirculation and preps your scalp to fully absorb the benefits of the treatment.

Nourishing Your Hair with Davines

Our ENERGIZING line from NATURALTECH is most beneficial when used along with biotin and collagen for hair growth. The revitalizing products in the line are enriched with a Hair Energy Complex to fight and protect against different kinds of hair loss and seasonal stressors. These must-haves will help you achieve your hair’s maximum growth potential.

ENERGIZING Shampoo

Our mild balancing shampoo for hair growth, formulated for a sensitive scalp and hair, prone to falling. It moisturizes and stimulates shiny, healthy strands, reinforcing weak hair, preventing breakage, and reinvigorating the scalp to promote new growth.

ENERGIZING Gel

Our hair growth gel for thinning hair that gives strength and body to fine and stressed out hair with a revitalizing effect. It moisturizes and invigorates strands for a light styling effect, while balancing the scalp.

ENERGIZING Thickening Tonic

Our leave-in thickening tonic for creating full bodied hair increases the diameter of strands, expanding it from the first application. It regenerates and invigorates the scalp, making hair shiny and voluminous.

ENERGIZING Superactive

Our hair growth serum for hair growth. It's an invigorating and stimulating serum for hair loss due to androgenetic factors. It improves the scalp tone, controls the hyper-production of sebum, and reduces the hair loss improving density.

Final Thoughts on Hair Growth

Hair growth shampoos, serums and topical treatments go a long way in supporting hair health and growing out your strands. But vitamins like biotin and collagen can give you an extra boost. Biotin boosts keratin production and collagen provides the structural building blocks for stronger hair strands. Taking them together, in addition to using high quality natural hair growth products like the ones from Davines, creates a synergistic effect. Biotin helps your body make keratin, and collagen supplies the structural support for it. This leads to a healthy scalp, with stronger hair strands that are less prone to breakage- the optimal environment for hair growth.

FAQs

Do biotin and collagen help hair grow?

Yes, biotin and collagen help hair grow by supporting a healthy scalp, with stronger hair strands that are less prone to breakage—the optimal environment for healthy hair growth.

What happens if I take biotin and collagen at the same time?

Taking biotin and collagen together creates a synergistic effect that leads to a healthy scalp, with stronger hair strands that are less prone to breakage, in turn promoting growth.

Can we give biotin to kids?

According to the Mayo Clinic, biotin is generally thought to be safe for children when consumed in appropriate amounts, typically through a balanced diet.

Can too much biotin or collagen cause hair loss?

There is no evidence of hair loss from excessive intake of biotin or collagen, so it’s highly unlikely.

What is a negative side effect of biotin?

Taking biotin supplements can interfere with certain lab tests, causing incorrect results.

How long does it take for collagen and biotin to work on hair?

It takes between 8–16 weeks to see visible results from taking collagen and biotin.

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Biotin and Collagen for Hair Growth

Key Takeaways

What to Know About Low Porosity Hair

In This Article

Biotin and Hair Growth

Collagen and Hair Growth

Biotin vs. Collagen

Can You Take Biotin and Collagen Together?

Nutrition for Hair Growth

Tips for Biotin and Collagen

Topical Solutions for Hair Growth

Nourishing Your Hair with Davines

ENERGIZING Shampoo

ENERGIZING Gel

ENERGIZING Thickening Tonic

ENERGIZING Superactive

Final Thoughts on Hair Growth

FAQs

Do biotin and collagen help hair grow?

What happens if I take biotin and collagen at the same time?

Can we give biotin to kids?

Can too much biotin or collagen cause hair loss?

What is a negative side effect of biotin?

How long does it take for collagen and biotin to work on hair?

Energize Your Scalp

Biotin and Collagen for Hair Growth

Winter Hair Care Tips

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