How to Make Hair Grow Faster: The Science Behind Healthy Hair Growth

If you’ve ever found yourself staring in the mirror, wishing your hair would just grow already—you’re not alone. Whether you’re dealing with thinning hair, constant breakage, or the aftermath of a dramatic haircut, the desire for faster, healthier hair growth is practically universal. And while it may feel entirely out of your control, it is possible to create the right conditions to help your hair grow healthier and faster.

At Bosley, we combine science, innovation, and 50 years of expertise in hair restoration to help you unlock your hair’s full potential. In this blog, we’ll break down everything you need to know about how to make your hair grow faster—backed by biology, proven treatments, and professional care.

Understanding the Stages of Hair Growth

To understand how to grow hair faster, we need to start with the science of hair growth. Hair growth follows a four-phase cycle:

1. Anagen (Growth Phase): The most active stage of hair growth, during which hair can grow up to half an inch per month.
2. Catagen (Transition Phase): A short, 2-week phase during which the follicle shrinks and growth stops.
3. Telogen (Resting Phase): Lasts about 3 months; this is when old hair prepares to be shed.
4. Exogen (Shedding Phase): Hair falls out, making room for new growth.

The goal? Prolong the anagen phase and keep your follicles active. Disruptions—like stress, hormonal imbalances, nutrient deficiencies, or genetics—can shorten this growth window. 

That’s where Bosley’s expert-backed strategies come in. Here are eight clinically proven ways to help your hair grow faster:

1. Use Minoxidil – The Only FDA-Approved Topical Hair Regrowth Treatment

Minoxidil is one of the most powerful tools in your hair growth arsenal. This FDA-approved topical solution is clinically proven to help regrow hair by revitalizing shrunken hair follicles and extending the growth phase.

Why Minoxidil Works:

• Stimulates blood flow to the scalp
• Extends the anagen phase, encouraging more hair growth
• Increases follicle size so hair grows back thicker

Bosley Pro Tip: Apply a 5% Minoxidil solution twice daily to thinning areas for the best results. 

2. Low-Level Laser Therapy (LLLT): Safe, Non-Invasive, and Effective

Low-Level Laser Therapy (LLLT) uses red light to stimulate follicles at the cellular level, encouraging rapid growth without heat or damage. It’s FDA-cleared, non-invasive, and incredibly effective when used consistently.

Key Benefits of LLLT:

• Reactivates dormant hair follicles
• Improves scalp circulation and nutrient delivery
• Reduces inflammation around follicles
• Works for men and women with hereditary hair loss

The Bosley Revitalizer^® laser cap is a clinically proven device designed to fit your lifestyle. Wear it for just 30 minutes a day to see stronger, thicker hair within a few months.

3. Feed Your Follicles: Nutrients That Support Hair Growth

Hair is made primarily of keratin, a protein that requires amino acids and nutrients to form. What you eat—and absorb—can either help or hinder your hair growth journey.

Must-Have Hair Growth Nutrients:

• Biotin (B7): Strengthens keratin and prevents breakage
• Vitamin D: Low levels are linked to alopecia and slow regrowth
• Zinc: Essential for healthy oil glands and hair tissue repair
• Iron: Delivers oxygen to hair roots, preventing shedding
• Omega-3s: Improves follicle elasticity and hydration

Bosley Recommends: Try BosleyMD’s Healthy Hair Vitality Supplements—specially formulated with saw palmetto, horsetail extract, and essential vitamins to naturally support hair growth from within.

4. Build a Scalp-Centered Routine

Healthy hair starts with a healthy scalp. Think of your scalp as the soil your hair grows from—nourish it, and your hair will thrive.

How to Care for Your Scalp:

• Exfoliate Weekly: Remove buildup and promote circulation
• Massage Daily: Increase blood flow to encourage growth
• Use Sulfate-Free Products: Avoid ingredients that strip moisture or cause irritation
• Balance Sebum Production: Both overwashing or underwashing hair and scalp can hinder growth

5. Get Strategic with Haircare Products

Over-the-counter products are not all created equal. Using the wrong products can slow hair growth, while the right regimen can protect, strengthen, and energize each strand.

Look for Ingredients Like:

• Saw Palmetto: A natural DHT-blocker
• Niacin: Improves blood circulation to the scalp
• Caffeine: Energizes follicles and counteracts hormone-related loss
• Keratin: Strengthens damaged hair shafts

BosleyMD’s Professional Strength products are salon-quality and clinically tested to promote healthy growth and reduce shedding without harsh chemicals or false promises.

6. Treat Hair Gently to Avoid Breakage

Even if your follicles are doing their job, you might not see the length you want if your ends are breaking faster than your roots can grow. Small changes in how you care for your hair can make a big difference.

Best Practices for Minimizing Breakage:

• Use microfiber towels to dry hair instead of cotton
• Avoid tight hairstyles that pull on roots
• Switch to silk pillowcases to reduce friction while sleeping
• Use wide-tooth combs and detangle gently
• Limit heat styling and always use heat protectant

Bosley Pro Tip: BosleyMD’s Leave-In Thickening Treatment adds volume while protecting fragile strands with clinically supported ingredients.

7. Manage Stress – Because Your Hair Feels It Too

Chronic stress triggers the hormone cortisol, which can shorten the hair growth phase and push follicles into resting mode (telogen effluvium). You might notice sudden thinning or increased shedding after a stressful event.

Ways to Reduce Hair-Damaging Stress:

• Practice mindfulness or meditation
• Exercise regularly
• Get 7–8 hours of sleep
• Limit caffeine and alcohol

8. Consider Hair Transplantation for Advanced Hair Loss

If you’ve tried all the over-the-counter and at-home treatments but aren’t seeing the growth you want, it may be time to explore professional hair restoration options. At Bosley, we offer a full suite of industry-leading solutions tailored to your unique hair type, hair loss pattern, and long-term goals.

Our Advanced Hair Restoration Options Include:

• Follicular Unit Extraction (FUE): A minimally invasive outpatient procedure where individual hair follicles are extracted and transplanted into thinning areas—leaving no linear scar and requiring minimal downtime.
• Follicular Unit Transplantation (FUT): A simple surgical technique where a small strip of hair-bearing scalp is removed and transplanted into areas with thinning or no hair, offering high graft yields in a single session.
• Scalp Micropigmentation (SMP): A non-invasive, cosmetic tattooing technique that mimics the appearance of hair follicles to give the illusion of thicker, fuller hair or a closely shaved scalp.

No matter your stage of hair loss, Bosley can help you create a personalized regrowth strategy that combines proven science, medical innovation, and decades of experience.

Ready to explore your options? Schedule your free consultation with a Bosley hair restoration expert today and take the next step toward thicker, healthier hair.

FAQs About Hair Growth

How fast does hair grow naturally?
On average, hair grows about half an inch per month, or 6 inches per year. This can vary based on genetics, health, and hair care habits.

Can hair grow faster with supplements?
Yes—supplements that contain biotin, vitamin D, zinc, and iron can support follicle health and stimulate growth, when paired with a healthy lifestyle.

Is hair thinning permanent?
Not necessarily. In many cases, hair thinning can be reversed—especially when addressed early. Treatments like Minoxidil, Low-Level Laser Therapy (LLLT), and other proven solutions can help stimulate regrowth and slow or stop further loss before it becomes permanent.

What is the most effective hair regrowth treatment?
Minoxidil, Low-Level Laser Therapy, and hair transplants are among the most clinically effective options. A hair transplant is the only proven, permanent solution to hair loss.