Rated 4.8 out of 5 stars

AHK-CU + GHK-CU Hair Serum Pro

A dual copper peptide scalp serum for a healthier-looking scalp and the appearance of fuller, stronger-looking hair.

4800mg of dual copper peptides — the first formula to combine AHK-Cu and GHK-Cu — formulated to support a healthier-looking scalp and fuller-looking hair in areas of visible thinning.

Supports a healthy-looking scalp environment for fuller-looking hair

Helps calm dry, irritated scalps for a more comfortable, conditioned feel

Lightweight spray that dries fast and fits into any routine

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Description

The first copper peptide serum spray to combine 2400mg of AHK-Cu and 2400mg of GHK-Cu in a 1:1 ratio to support skin, scalp, and hair. AHK-Cu supports hair growth by improving blood flow to the follicle, while GHK-Cu helps with tissue repair and collagen care. Third-party tested and 99% purity confirmed by in-house HPLC. Paraben free, dye free & fragrance free.

Usage Tip: Pull your hair back and apply one spray to each side of the thinning area and one spray to the back of the scalp, then massage it in before it drips. Use once in the morning and once at night on a clean, dry scalp.

See the rest of our GHK-Cu peptide range for complementary formulations.

Ingredients

AHK-Cu (Copper Tripeptide-3)
GHK-Cu (Copper Tripeptide-1)
Distilled Water

Lab Results

Our AHK-CU + GHK-CU Hair Serum Pro are third-party lab tested to ensure highest quality, purity, and safety.

AHK CU + GHK CU Lab Results

AHK CU + GHK CU Lab Results 2026

AHK CU + GHK CU Lab Results 2026 May

Month 1

Month 2

Month 3+

Month 1

What's Happening: Both peptides are absorbing into the scalp, supporting a calmer, more balanced environment. Dryness and irritation may begin to ease.

What to Expect: No visible changes yet — that's normal. This phase is about building healthy-looking scalp conditions. Keep showing up twice a day.

✓ Formulated with Clinically Studied Ingredients

Carefully formulated with clinically studied ingredients and rigorously third-party tested for quality and consistency.

Month 2

What's Happening: The scalp environment is becoming more comfortable and conditioned.

What to Expect: Existing hair may start to feel stronger. Some people notice less hair in the shower or on the pillow, and fine hairs may appear in thinning areas.

✓ Formulated with Clinically Studied Ingredients

Carefully formulated with clinically studied ingredients and rigorously third-party tested for quality and consistency.

Month 3+

What's Happening: With consistent use, the scalp stays well-conditioned and hair has had time to look fuller.

What to Expect: Fuller-looking coverage in areas that were thinning, and hair that feels stronger overall.

✓ Formulated with Clinically Studied Ingredients

Carefully formulated with clinically studied ingredients and rigorously third-party tested for quality and consistency.

✓ Formulated with Clinically Studied Ingredients

Carefully formulated with clinically studied ingredients and rigorously third-party tested for quality and consistency.

Follicle-Targeted Support

AHK-Cu and GHK-Cu work together to support a healthy-looking scalp environment — the foundation for hair that looks fuller and more resilient.

Less Shedding, More Staying

A comfortable, well-conditioned scalp supports hair that looks fuller. With consistent use, many people notice fewer hairs in the drain and on the pillow.

Calmer, Healthier Scalp

Dry, irritated scalps don't look their best. This dual-peptide formula helps create a more balanced, comfortable scalp — less flaking, less tightness.

Works With What You Already Use

The water-based spray dries fast and layers under or over your existing products. No greasy residue, no reformulating your entire routine.

Three Ingredients. Nothing Else.

AHK-Cu, GHK-Cu, and distilled water. No sulfates, no parabens, no fragrance, no fillers. You can read the entire ingredient list in about three seconds.

Supports a Healthier-Looking Hair Routine

Rather than masking thinning with volumizers, this formula supports a conditioned scalp environment for hair that looks fuller and healthier over time.

AHK-Cu is a copper peptide tripeptide specifically studied for its interaction with hair follicle cells. In laboratory research, it helped hair-root cells (dermal papilla cells) survive longer than untreated controls. This is the lead peptide in the formula — chosen for its follicle-specific mechanism.

GHK-Cu is one of the best-researched copper peptides available, with evidence spanning scalp health, tissue remodeling, and growth factor signaling. It occurs naturally in the body but declines with age. Here it plays a supporting role — complementing AHK-Cu with broader scalp environment support.

No artificial additives

No unnecessary fillers

No low-quality ingredients

No artificial colors or flavors

How We Compare

Feature	AHK-Cu & GHK-Cu Serum	Other Serums
Peptide Strength	4800 mg (8%)	400-800mg
Skin Benefits	Nourishes the scalp for fuller-looking hair	Nourishes follicles
Texture	None reported	Minimal
Daily Use	Once daily, non-greasy	Once daily

FDA disclaimer

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

This product is not for use by or sale to persons under the age of 18. Do not use if you are pregnant or nursing. Consult a physician before using this or any dietary supplement. All trademarks and copyrights are the property of their respective owners and are not affiliated with nor do they endorse this product. By using this site, you agree to follow the Privacy Policy and all Terms & Conditions printed on this site. Void where prohibited by law.*

Customer Reviews

Morning. Night. That's the Routine.

Step 1

Spray Onto a Clean Scalp

Start with a clean, towel-dried (or fully dry) scalp. Pull your hair back and apply one spray to each side of the thinning area and one spray to the back — or 3 to 5 sprays across the scalp for broader coverage.

Step 2

Massage In for 30 to 60 Seconds

Use your fingertips to work the serum into the scalp. This helps with absorption and gets blood flowing to the follicles.

Step 3

Let It Dry, Then Layer

The formula dries in a couple of minutes. Once dry, apply other products as usual — styling products, oils, whatever your routine includes.

The Research Behind

In a 2007 laboratory study on human dermal papilla cells, AHK-Cu was observed to support cell activity in a controlled setting. These are early, lab-based findings. In this formula, AHK-Cu is used as a cosmetic ingredient to support the look of fuller, healthier hair — not as a treatment for hair loss.

01 AHK-Cu and the Hair Follicle

AHK-Cu is a copper peptide studied in laboratory research for its interaction with the cells at the base of the hair follicle. It's used in cosmetic scalp formulas to support the appearance of fuller, healthier-looking hair. [1]

02 GHK-Cu Supports the Broader Scalp Environment

03 The First Combination Formula

Who It's For

Who Is This GHK-Cu Serum For?

This is perfect for you if…

✓You're noticing thinning around the crown or hairline and want to act early.

✓Your scalp feels dry or irritated and you suspect it's affecting your hair.

✓You want a clean, peptide-based addition to your hair-care routine.

✓You prefer a clean, no-filler formula backed by real research.

This might not be for you if…

✕You're expecting results in a week. This takes 9 to 12 weeks of consistent use.

✕You have complete baldness in the area — this works best where follicles are still active.

Is it legal to take AHK-Cu Peptides??

Yes, both AHK-Cu peptides are legal to take and safe to use in topical serum formulations like this one.

Are there any side effects?

No known side effects when used as directed. Avoid overuse or applying to broken skin.

Has anyone tried combining GHK-Cu and AHK-Cu?

Combining both is extremely rare, this is the first known product (from Neurogan Health) to deliver them together in a 1:1 topical spray.

How much am I getting per spray?

Each spray delivers an estimated dose with a 1:1 ratio of GHK-Cu to AHK-Cu, though exact mg per spray may vary slightly due to the spray cap.

What is AHK-Cu used for?

AHK-Cu is a synthetic copper peptide used primarily in hair and scalp formulations. It is designed to interact locally at the hair follicle level and has been studied for its role in follicle signaling and dermal papilla cell activity, which are involved in the hair growth cycle.

How long does AHK-Cu take to work?

Based on our testing and feedback from people in our network, results vary, but most users begin evaluating changes within 4–8 weeks, with more noticeable differences often appearing after 2–3 months of consistent use. Here is what one customer said: “Within about one month, I could actually see a difference in real hair growth and less breakage. It has only been two months so far.”

How do you use AHK-Cu for hair growth?

Pull your hair back and apply one spray to each side of the thinning area and one spray to the back of the scalp, then massage it in before it drips. Use once in the morning and once at night, and allow 4–8 weeks of consistent use to begin evaluating changes, with results commonly assessed after 2–3 months.

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Try It For 30 Days, Risk-Free

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

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References

[1] Pyo, H. K. et al. (2007). The effect of tripeptide-copper complex on human hair growth in vitro. Archives of Pharmacal Research.

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AHK-CU + GHK-CU Hair Serum Pro

AHK-CU + GHK-CU Hair Serum Pro