12 Best Collagen Supplements for Hair Growth (2024 Reviews)

Discover expert-reviewed collagen supplements that could promote fuller, stronger hair and improve scalp health.

By Sneha Tete, Integrated MA, Certified Relationship Coach

Created on Sep 29, 2025

Discover expert-reviewed collagen supplements that could promote fuller, stronger hair and improve scalp health.

Collagen’s reputation in the beauty world continues to rise, especially as more people seek solutions for fuller, healthier hair. With countless products on the market and a growing body of research connecting collagen to scalp and follicle health, finding a reliable supplement can be challenging. Below, discover the top tested collagen products for hair growth, explore their science-backed benefits, and get expert tips to optimize results.

Does Collagen Help Regrow Hair?

The interest in collagen supplements to boost hair growth has intensified in recent years. Collagen is one of the body’s key structural proteins and plays a pivotal role in skin, joints, and, potentially, the health of your hair follicles.
While there are promising findings and anecdotal success stories, current scientific research remains in the early stages. Experts clarify there is no definitive proof yet that collagen supplementation alone will regrow lost hair, but evidence suggests potential positive effects on scalp health and hair density.
Everyone produces collagen naturally by breaking down amino acids from their diet. Supplementation’s goal is to boost total collagen levels in the body, which may enhance both skin and scalp health as we age.
Key Takeaways:

Collagen supplements may help support scalp health and hair density, though more robust studies are needed for hair regrowth claims.
Collagen production decreases with age, contributing to thinning hair and skin.
Dermatologists say trying collagen supplementation is generally safe and may be worthwhile for those seeking healthy skin and hair.

Collagen vs. Biotin: Which Is Better for Hair Growth?

Biotin and collagen are often found together in hair supplements, but they serve distinct purposes. Biotin, a B vitamin, is crucial for nutrient metabolism and plays a vital role in the production of keratin—the main protein in hair.
Collagen, by contrast, is involved in building and supporting the structure of skin and hair follicles and may indirectly aid hair growth. Here’s how to choose the right option:

If you have a biotin deficiency, biotin can help restore hair thickness and health.
If you don’t have a deficiency, extra biotin will likely have minimal effect on hair.
Collagen supplementation may support scalp health and boost skin’s firmness but is not a replacement for biotin in cases of deficiency.

Dr. Nazanin Saedi, board-certified dermatologist, explains: “Our body’s natural collagen production decreases as we age, and the effects of lost collagen result in less firm, more wrinkled skin.” Environmental stressors like UV light and pollution further accelerate this decline, potentially impacting scalp health and slowing hair growth. Therefore, supplementing with either collagen or biotin should be based on personal needs, genetics, and existing nutrient levels.

How Does Collagen Support Hair and Scalp Health?

Collagen consists primarily of three amino acids: proline, glycine, and hydroxyproline. Proline is also a main component of keratin. Supplementing with collagen provides your body with more of these building blocks, which may:

Strengthen hair follicles by supporting building blocks for keratin.
Fight free radicals that damage hair follicles using collagen’s antioxidant activity.
Improve scalp skin health, resulting in an environment conducive to thicker, fuller hair.
Slow signs of aging, including thinning hair, via improved skin elasticity and density.

Some studies suggest marine and bovine collagen impact hair follicles in slightly different ways:

Marine collagen may help prolong the anagen (growth) phase of hair.
Bovine collagen may promote direct regeneration of hair follicles.

While research is ongoing and larger-scale trials are needed, many experts and users report positive changes in fullness, texture, and overall scalp health after several months of regular collagen use.

Best Collagen Supplements for Hair Growth: Top 12 Picks

All products below are evaluated on formula quality, ingredient transparency, price, customer reviews, and suitability for a range of hair types. Always consult with your doctor before starting any new supplement regimen.

Vital Proteins Collagen Peptides
Type: Bovine protein powder
Why it’s great: Highly bioavailable, dissolves easily in drinks, widely praised for improving skin and hair texture.
Live Conscious Collagen Peptides
Type: Bovine
Highlights: Clean formula, tested for purity, positive reviews about faster-growing hair and stronger nails.
NeoCell Super Collagen
Type: Bovine hydrolyzed peptides
Features: Widely available, supports healthy skin and hair, easy to mix in smoothies or coffee.
Orgain Hydrolyzed Collagen Peptides
Type: Grass-fed bovine
Benefits: Affordable, straightforward formula, good value, reports of improved thickness and shine.
Reserveage Nutrition Collagen Booster
Type: Capsules with biotin Pros: Contains resveratrol for antioxidant support, suitable for travel, popular for convenience and added hair nutrients.
Garden of Life Collagen Beauty
Type: Grass-fed bovine powder
Extra: Fortified with probiotics and vitamin C, targets both skin and hair health, good for sensitive digestion.
Codeage Multi Collagen Protein
Type: Blend of bovine, marine, chicken, and eggshell collagen
Best for: Those seeking a broad spectrum of collagen types; supports both scalp and overall body tissue.
Sports Research Collagen Peptides
Type: Bovine
Highlights: NSF-certified for sport, clean sourcing, strong user testimonials about improved hair thickness.
Ancient Nutrition Multi Collagen Protein
Type: Multiple animal sources
Why choose: Potential for wider amino acid coverage, often recommended for slow-growing or thinning hair.
Further Food Marine Collagen
Type: Wild-caught fish
Advantages: Best option for pescatarians, highly dissolvable, bioactive peptides support scalp health.
Vital Proteins Marine Collagen
Type: Fish collagen
Suited for: Those with dietary restrictions or looking for an alternative to bovine sources; popular for hair shine and growth phase support.
Hum Nutrition Collagen Pop
Type: Marine collagen drink tablets
Pros: Effervescent, portable, includes vitamin C to support collagen synthesis.

Comparison Table: Marine vs. Bovine Collagen for Hair Health

Collagen Type	Main Source	Benefits for Hair	Best For
Marine	Fish (wild-caught)	Prolongs growth phase (anagen), high bioavailability, antioxidant protection	Pescatarians, sensitive digestion, hair shine & growth phase
Bovine	Grass-fed cattle	Regenerates follicles, strengthens hair structure, skin elasticity	General use, affordable, overall skin and hair strength
Multi-Sourced	Blend (bovine, marine, chicken, eggshell)	Wide amino acid profile, supports overall tissue integrity	Maximal benefit seekers, slow-growing hair

Tips for Maximizing Collagen Benefits for Hair Growth

Be consistent—results are commonly seen after three to six months of regular use.
Combine with a balanced diet rich in amino acids, vitamins (especially C), and minerals.
Maintain scalp health with gentle cleansing, exfoliation, and minimizing UV damage.
Avoid excess styling heat and chemical treatments, which accelerate protein breakdown.
Consult a dermatologist if you suspect a nutrient deficiency or have persistent hair loss.

What to Look For in a Collagen Supplement for Hair Growth

When selecting a collagen supplement, consider:

Type of collagen: Determine if it’s marine, bovine, or multi-source; choose according to dietary restrictions and desired benefits.
Added ingredients: Biotin, vitamin C, hyaluronic acid, or antioxidants can enhance synthesis and protect follicle health.
Purity and sourcing: Choose reputable brands tested for heavy metals and contaminants.
Form factor: Powders, capsules, drink mixes—opt for what fits your lifestyle.

Frequently Asked Questions (FAQs)

Q: Can collagen really regrow hair?

A: There’s limited direct evidence for regrowth, but collagen may improve scalp health and support follicle strength, which can result in fuller, healthier hair overall.

Q: Is collagen better than biotin for hair growth?

A: Both serve different functions. Biotin is essential if you have a deficiency, while collagen helps strengthen follicles and scalp skin. Many supplements combine them for maximum benefit.

Q: How long before I see results from collagen supplements?

A: Most users see changes in texture, fullness, or scalp vitality within three to six months if using consistently and combining with balanced nutrition.

Q: Are marine collagens better for hair growth than bovine collagens?

A: Marine collagens may better prolong the hair growth phase due to their specific amino acid profile, but both types support scalp health and thickness. Consider dietary restrictions and product purity.

Q: Are collagen supplements safe?

A: Collagen supplements are generally safe for most adults. Always check ingredient lists for allergens and consult your doctor if you have underlying health conditions.

Expert Insights: What Dermatologists Say About Collagen for Hair

Dermatologists indicate that more high-quality research is needed, but existing studies are promising. Dr. Saedi states, “I’m in full support of trying everything you can—within reason—to benefit or boost collagen production in the pursuit of healthier skin and hair as we age.” While results may vary, most experts agree collagen supplements are a safe addition to a holistic hair care routine.

Older adults and those with thinning hair are most likely to experience positive changes.
Collagen helps create an optimal scalp environment for growth, even if direct regrowth is inconclusive.

Summary: Should You Try Collagen for Hair Growth?

If you’re interested in healthier, fuller hair, collagen supplementation is a safe and potentially beneficial addition to your beauty routine. While results depend on genetics, age, and your overall diet, consistent use of high-quality collagen—especially alongside scalp-friendly nutrients—can improve scalp health, thicken hair, and boost skin vibrancy.
The best approach combines collagen supplements, proper nutrition, and healthy styling habits. Consider blends with biotin and antioxidants for maximum effect, and monitor your progress over several months. Consult with a healthcare provider or dermatologist, especially if you have persistent hair thinning.

References

Author

Sneha TeteBeauty & Lifestyle Writer

Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to thebridalbox, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

Read full bio of Sneha Tete