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4.6
Rated 4.6 out of 5 stars
52

GHK-Cu Copper Peptide Hair & Scalp Serum

Thicker, Fuller-Looking Hair in 90 Days

Reduce shedding and support visibly denser hair with clinically studied GHK-Cu copper peptides.

Promotes faster hair growth

Reduces hair shedding by up to 40% in 30 days

Nourishes scalp and strengthens follicles at the root

Our Most Reordered Hair Regrowth Formula

Protected Purchase • Risk-Free Trial

Description

GHK-Cu Copper Peptide Serum now features a unique blue formula, crafted by our family-owned business where our three bald founders are dedicated to preventing hair loss. This two-ingredient serum nourishes the scalp for fuller, healthier hair. Proudly made in the USA, it's simple, effective & guaranteed satisfaction.

Usage: Apply a few drops of GHK-Cu Copper Peptide Serum directly to your scalp once daily. Gently massage into the scalp to ensure deep penetration.

Ingredients

  • Medical Grade Distilled Water
  • GHK-CU

Lab Results

Lab Results
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The 90-Day Path to Visibly Thicker Hair

Our GHK-Cu serum delivers a potent 2400mg dose of copper peptides directly to your hair follicles. At a cellular level, GHK-Cu has been shown to increase the production of growth factors and reduce inflammation, creating the optimal environment for hair to grow.

We use 6x more GHK-Cu than leading brands, which means you get faster, more visible results.

Week 0-4

Week 5-8

Week 9-12

Illustration of skin layers showing hair follicle with bubbles, depicting moisture absorption and skin health.

Week 0-4

What’s Happening: Your scalp absorbs the GHK-Cu, reducing inflammation and preparing follicles for growth. You may notice up to 40% less shedding and a healthier scalp.

What to Expect: Don’t expect visible hair growth yet. This phase is about creating the right foundation. Consistency is key.

✓ Clinically Proven Results You Can Trust

In a 16-week clinical study, 98% of participants reported visibly thicker hair.

Illustration of a cell structure featuring a central nucleus surrounded by blue molecules, showing cellular organization.

Week 5-8

What’s Happening: Copper peptides signal dormant follicles to “wake up.” Cellular energy increases, and the hair growth cycle (anagen phase) is prolonged.

What to Expect: You may see small, fine “baby hairs” appearing. Your existing hair may feel stronger.

✓ Clinically Proven Results You Can Trust

In a 16-week clinical study, 98% of participants reported visibly thicker hair.

Illustration of a single hair strand emerging from the skin, showcasing hair growth and texture.

Week 9-12

What’s Happening: New hairs grow longer and thicker. Follicles are stronger, leading to significantly less shedding and improved density.

What to Expect: A noticeable improvement in hair density and coverage. Thinning areas appear fuller.

✓ Clinically Proven Results You Can Trust

In a 16-week clinical study, 98% of participants reported visibly thicker hair.

✓ Clinically Proven Results You Can Trust

In a 16-week clinical study, 98% of participants reported visibly thicker hair.

Benefits Of Consistent Use

Proven to Reduce Shedding by 40%

Our formula is clinically studied to reduce hair shedding by up to 40% within 90 days, meaning less hair in your brush and more on your head.

See Visibly Thicker, Fuller Hair

By awakening dormant follicles, our serum helps you see visible new growth in as little as 4-8 weeks, leading to fuller coverage and renewed confidence.

6x More Potent for Faster Results

With 2400mg of GHK-Cu, our serum is 6x more concentrated than other brands, strengthening hair from the root and delivering faster, more noticeable results.

Nourishes Scalp for Long-Term Health

We address the root cause of hair thinning by creating a healthier scalp environment. This isn’t just a cosmetic fix; it’s a long-term investment in your hair’s future.

Lightweight, Non-Greasy & Won’t Stain

Our water-based formula absorbs quickly without leaving your hair greasy. The natural blue color will not stain your hair, scalp, or pillows.

Supports a Healthier Hair Growth Cycle

GHK-Cu can extend the growth phase and reduce scalp inflammation, supporting stronger, longer, more resilient hair.

Active Ingredient

GHK-Cu (Copper Peptides) - 2400mg

The powerhouse of our serum. GHK-Cu is a naturally occurring copper complex that has been studied for its ability to promote hair growth by stimulating collagen production, reducing inflammation, and prolonging the hair’s growth phase. Our 2400mg concentration is 6x higher than standard serums, ensuring maximum effectiveness.

Supporting Base

Medical Grade Distilled Water

Medical grade distilled water is used as the carrier to ensure purity and optimal absorption of the active ingredient.

No sulfates
No parabens
No phthalates
No harsh chemicals
No artificial fragrances

How We Compare

Feature Our ProductOther GHK-Cu SerumsMinoxidil(Rogaine)Finasteride (Propecia)
Concentration 2400mg (6x Potency)400-800mg5%1mg (Oral)
Mechanism Nourishes follicles, reduces inflammationNourishes folliclesIncreases blood flowBlocks DHT (hormonal)
Side Effects None reportedMinimalScalp irritation, unwanted hair growthSexual side effects, depression
Application Once daily, non-greasyOnce dailyTwice dailyDaily pill
Hormonal Impact
Prescription Needed

Are you ready to start your journey to healthier, stronger hair?

Customer Reviews

4.6
Rated 4.6 out of 5 stars
Based on 52 reviews
Total 5 star reviews: 41 Total 4 star reviews: 6 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 3
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Reviews Summary
Customers say this hair and scalp serum is easy to apply with its spray format and doesn't weigh hair down or make it stiff. Users report noticing reduced shedding within 2-4 weeks, with many observing new hair growth and increased thickness after a month of use. The serum absorbs quickly and doesn't leave hair oily or sticky. Many reviews mention improvements in scalp comfort, with some noting reduced itching and irritation. Several customers find it effective for eyebrow growth as well. While most users are pleased with results, some note it takes time to see changes and a few haven't noticed improvements yet. Common feedback includes appreciation for the simple formulation and convenient spray application.
Customers Talked About
Rating
Ratings
52 reviews
  • CS
    Chelsea S.
    Verified Buyer
    Rated 5 out of 5 stars
    3/25/26
    Promising!

    I'm only on my 4th week but this formula does give me high hopes.

  • HJ
    Heather J.
    Verified Buyer
    Rated 5 out of 5 stars
    3/23/26
    Serum spray

    Just in the first week alone i noticed less shedding when I brush my hair and in the shower.

  • SF
    Sarah F.
    Verified Buyer
    Rated 5 out of 5 stars
    3/20/26
    Pure and potent!

    Remarkable results and insane value! I remember buying copper topical peptides 5+ years ago in little vials that were so expensive with less results! Im sharing this topical spray with everyone! Rapid healing, hyperpigmentation and hair growth in one bottle of pure blue magic! So grateful i found this company and product! Thank you!

  • JS
    Jessa S.
    Verified Buyer
    Rated 5 out of 5 stars
    3/19/26
    Copper is vital for skin health!

    Only been on it a month for hair regrowth due to Telogen Effluvium and I can already see new growth. I also spray it on my face and neck after micro- needling. I love this stuff.

  • SJ
    Sherrie J.
    Verified Buyer
    Rated 5 out of 5 stars
    3/18/26
    GHK-Cu Copper Peptide Hair & Scalp Serum

    I received the serum in a timely fashion. I am currently using the serum, which is easy to use, however it is too soon to see any results. I appreciate not having to try to make the serum myself. I believe it is actually less expensive to purchase from Neurogen in lieu of buying all of the supplies and products to make my own. I feel the web site is easy to use. I am currently pinning while using this product twice a week. I will update in several weeks with results!

  • SW
    Steven W.
    Verified Buyer
    Rated 5 out of 5 stars
    3/12/26
    Good product

    Absorbs fast. Gotta spray farther away so it doesn’t run quickly. But the only real issue is the blue stains skin sometime Which isn’t a issue if u rub it in after

  • RD
    Richard D. C.
    Verified Buyer
    Rated 5 out of 5 stars
    3/7/26
    My hair is thicker

    I definitely see a lot of new hair in the corners of my head. I’m on my second bottle and I definitely noticed that it’s working.

  • SS
    Sir S.
    Verified Buyer
    Rated 5 out of 5 stars
    3/5/26
    Difference you can see and feel

    I purchased this on a whim, wanting to avoid hair transplant and I’m glad I have. Within 6 days I could notice new growth on my hairline I thought I would never see. Fuller hair overall, actual regrowth and my hairdresser even asked me to share!

    If you are worried about thinning hair, do yourself a favor and get this produce ASAP.

  • MH
    Moses H.
    Verified Buyer
    Rated 5 out of 5 stars
    2/26/26
    Excellent!

    Great product. Really seeing my hair regrowing

Your Daily Ritual for Thicker Hair

Step 1

Apply to Clean, Dry Scalp

Use 3-5 sprays (3 for targeted areas, 5 for broader coverage) directly onto your thinning areas. Best applied in the morning or before bed.

Step 2

Massage Gently for 30-60 Seconds

Use your fingertips to gently massage the serum into your scalp to increase blood flow and absorption.

Step 3

Let It Absorb & Stay Consistent

No need to rinse. The lightweight formula absorbs in minutes. Use daily for best results. Most customers see visible changes in 8-12 weeks.

The Science Behind GHK-Cu

Copper peptides are one of the most well-researched ingredients for skin and hair rejuvenation. In a double-blind, placebo-controlled study of 100 participants with androgenetic alopecia:

  • 98% of participants using our 2400mg GHK-Cu serum reported visibly thicker hair.
  • Participants saw an average 40% reduction in hair shedding.
  • No significant side effects were reported.

GHK-Cu has been shown to stimulate the production of several key growth factors that are essential for hair growth.

This is perfect for you if…

You’re in your 30s, 40s, or 50s and noticing gradual thinning.

You want a science-backed, non-hormonal alternative to Minoxidil or Finasteride.

You have hair loss related to PCOS, Hashimoto’s, or stress.

You want to be proactive and prevent further hair loss.

This might not be for you if…

You’re looking for an overnight miracle. This takes 8-12 weeks of consistent use.

You have complete baldness. This works best on thinning areas with active follicles.

We’re here to help

Have more questions? Visit our Help Center or reach out to us at support@neuroganhealth.com — we're happy to assist you on your wellness journey.

Does copper peptide serum work for hair growth?

Yes, copper peptides are known to nourish the scalp and can create an environment that supports healthier, fuller-looking hair over time.

Should I apply this serum directly to the scalp?

Yes if you want the best results, apply the serum directly to the scalp to help nourish and rejuvenate the hair follicles.

Will my hair be dyed blue because of the new improved formula?

No, the blue color of our new formula will not stain your hair as it is a water-based product that rinses out cleanly.

How often should I use the GHK-Cu Copper Peptide Serum?

To give your hair growth a real boost, apply the serum at least once a day, making sure to massage it deep into the scalp.

Is this serum suitable for all hair types?

Yes, our GHK-Cu Copper Peptide Serum is designed to be effective for all hair types.

Try It For 30 Days, Risk-Free

We’re so confident in our formula that we offer a 30-day “Love Your Hair” money-back guarantee. If you don’t see a difference, or if you’re not happy for any reason, just let us know and we’ll give you a full refund. No questions asked.

From Three Guys Who’ve Been There

We’re not just selling a hair serum—we’re three guys who have been exactly where you are. We tried everything: Minoxidil, finasteride, expensive clinics. Nothing worked the way we wanted without side effects.

That’s why we created Neurogan Health. We wanted a simple, science-backed solution with the highest concentration of GHK-Cu available—2400mg, 6x more than other brands. No harsh chemicals. No complicated routines. Just real results.

We third-party test every batch because your trust is everything to us. If you’re not happy, we’re not happy.

References

[1] Pickart, L., & Margolina, A. (2018). Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. International Journal of Molecular Sciences, 19(7), 1987.
[2] (Internal Study) Neurogan Health. (2025). A 16-Week, Double-Blind, Placebo-Controlled Study of a 2400mg GHK-Cu Serum for Androgenetic Alopecia.
[3] Maquart, F. X., Pickart, L., Laurent, M., Gillery, P., Monboisse, J. C., & Borel, J. P. (1988). Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+. FEBS letters, 238(2), 343-346.
[4] Pollard, J. D., Quan, S., Kang, T., & Buhl, A. E. (2005). The effect of a GHK-Cu-containing scalp lotion on hair growth and thickness. Journal of the American Academy of Dermatology, 52(3), P99.
[5] Canapp, S. O., Jr, & Canapp, D. A. (2016). The role of GHK-Cu in the treatment of canine orthopedic and soft tissue injuries. Journal of the American Holistic Veterinary Medical Association, 42, 24-30.