AHK PEPTIDE HAIR & SCALP SERUM

AHK PEPTIDE HAIR & SCALP SERUM

Sale price$108.00
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AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM
AHK PEPTIDE HAIR & SCALP SERUM

AHK PEPTIDE HAIR & SCALP SERUM

Copper Peptide Scalp Serum for Fuller-Looking Hair

Sale price $108.00

In stock

AHK-Cu is the signal. The formula around it is what makes the signal count.

A lightweight copper peptide scalp serum designed to support fuller-looking hair, stronger-looking roots, and a healthier scalp environment without oil, residue, or hormonal actives.

At 0.25%, AHK-Cu anchors a three-peptide system supported by research in human hair follicles and dermal papilla cells. Acetyl Tetrapeptide-3 supports the structural matrix associated with anchoring hair at the root, while Biotinoyl Tripeptide-1 adds a second follicle-directed peptide for fuller, denser, stronger-looking hair.

L-Histidine is the delivery intelligence. Used in a near-equimolar relationship to copper, it helps coordinate copper and support its handoff within the formula. Sodium PCA, Sodium Lactate, Serine and Glycine form an NMF-based matrix that binds water at the scalp surface, helping create a more favorable diffusion environment for water-soluble actives.

Niacinamide, Panthenol and Allantoin support barrier resilience, helping keep the scalp in condition for consistent daily treatment.

Not a hydrating scalp serum with peptides added. A follicle-directed copper system engineered around signaling, anchoring, copper coordination and delivery. 

Designed for daily use without changing your wash schedule.
Water-light. Lipid-free. No oily finish. No sticky root residue.

PRODUCT DETAILS

Texture: lightweight watery serum
Finish: refreshed, balanced, non-greasy
Fragrance: none
Product Material: UV-Coated Glass
Storage Requirements: Refrigeration is highly recommended
Vegan: Yes
Developed to Made Safe Standards: Yes
Size: 1 fl oz | 30 mL
Packaging: All Products arrive wrapped in a 100% Cotton Reusable Draw-String Keepsake dustbag.

HOW TO USE

Apply .5ml directly to the scalp once daily, preferably in the evening, focusing on the part line, temples, crown, or areas where hair appears sparse or fragile. Avoid the face when applying. Massage gently with fingertips and rinse hands thoroughly after. Leave in and allow to dry before styling. Use consistently for best cosmetic results.

INGREDIENTS

Aqua (Water), Propanediol, Niacinamide, Copper Tripeptide-3, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Caffeine, Panthenol, Citrus Aurantium Amara (Neroli) Flower Water, Sodium PCA, Sodium Lactate, Allantoin, Glycine, Serine, Histidine, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Lactic Acid.

JEN'S NOTE

Apply to the scalp, not the hair lengths. The formula is intentionally water-thin and low-residue, and should leave your roots soft and bouncy, never sticky (even if it's been a while since you've washed).

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Biotech treatment for the scalp

Not an Oil. A Scalp Treatment.

Signal. Strengthen. Anchor. Energize.

A water-light copper peptide scalp serum designed to support the follicle environment, strengthen the look of the root, and promote fuller-feeling hair over time.

01

Signal

AHK-Cu

Supports the scalp environment associated with healthier-looking growth and stronger-looking hair at the root.

02

Anchor

Acetyl Tetrapeptide-3

Supports the extracellular matrix surrounding the follicle to help hair appear more securely anchored.

Peptide signaling system
Water-light scalp delivery
03

Strengthen

Biotinoyl Tripeptide-1

Supports stronger-looking hair and a healthier appearance through the lengths and at the root.

04

Energize

Caffeine + niacinamide

Supports scalp vitality, comfort and the appearance of fuller, more resilient hair over time.

.25%
AHK-Cu
2.0%
Acetyl Tetrapeptide-3
2.0%
Biotinoyl Tripeptide-1
0.5%
Caffeine

Designed to support the appearance of stronger, fuller and healthier-looking hair with consistent use.

Loved by our Alchemy community

“I lost a lot of hair from losing weight. I started using this product from samples I received roughly 3 months ago, and it has transformed my hairline. I have about an inch and a half of growth all the way around and I am growing new hair across my entire head.” - Tammy

Built around the evidence

0.25%, by design.

A deliberate AHK concentration, a considered copper environment, and a multi-peptide system built around the way the ingredient actually behaves.

A finished AHK serum is a system, not a percentage.

We designed ours around the variables we believe matter together: AHK dose, copper chemistry, complementary peptide signaling, scalp support, and a vehicle suitable for consistent leave-in use.

0.25% AHK is not a compromise. It is the design point around which the rest of the formula was built.

1
2

Targeted where it matters.

Lightweight, fast-absorbing and designed to support a healthier-looking scalp and fuller-looking hair.

3
Before and after hair density comparison

Visible density.

Stronger-looking hair.

Formulated to support the scalp environment and promote the appearance of fuller, healthier hair.

Supports healthier-looking density
SUPPORTS
HEALTHIER-LOOKING
DENSITY
Targets the scalp environment
TARGETS THE SCALP
ENVIRONMENT
Strengthens the look of thinning areas
STRENGTHENS THE LOOK
OF THINNING AREAS
Lightweight, leave-in formula
LIGHTWEIGHT,
LEAVE-IN FORMULA
Before and after hair density comparison

Results after 12 weeks with AHK Peptide Hair & Scalp Serum | Individual results may vary.

AHK Peptide Hair & Scalp Serum — Start at the Root
5
Published AHK-Cu Research

Growth begins beneath the strand.

AHK-Cu has been studied for its influence on living human hair follicles and dermal papilla cells, the specialized cells involved in regulating follicle growth.

Studied Range
10⁻¹²–10⁻⁹ M

Active Concentration Range

The range associated with increased follicle elongation and dermal papilla-cell proliferation.

Follicle Response
p < 0.001

Follicle Elongation

A statistically significant response reported in isolated human follicles.

Cell-Survival Marker
42.7%

Lower Cleaved Caspase-3

A reduction observed in a marker associated with programmed cell death in cultured dermal papilla cells.

Cell-Survival Marker
77.5%

Lower Cleaved PARP

A reduction observed in another apoptosis-associated marker in cultured dermal papilla cells.

What the research suggests
01

Extend

Supported elongation of living human follicles maintained outside the body.

02

Multiply

Stimulated proliferation of cultured human dermal papilla cells.

03

Preserve

Shifted several measured markers toward a more cell-survival-favorable profile.

04

Support

Supports the rationale for a follicle-focused signaling treatment.

Study Context

Results were observed in isolated human hair follicles and cultured dermal papilla cells. The study did not evaluate the finished AHK Hair & Scalp Serum, establish a human hair-growth percentage, or measure topical consumer results.

View published reference

Pyo HK, Yoo HG, Won CH, et al. The effect of tripeptide-copper complex on human hair growth in vitro. Archives of Pharmacal Research. 2007;30(7):834–839. PMID: 17703734.

  • 5 stars: 32 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Calandria P.

And my hair!!! After using the AHK Peptide Hair & Scalp Serum, my hair felt SO GOOD and looked so much healthier.

L
Luz A.
The Fuller-Looking Finish Took Consistency

The fuller-looking finish took consistency. I didn’t see a dramatic difference in the first week, but my part began looking less stark after regular nightly use. The change is easiest to see in photos taken under the same overhead light. Slow and visible is good enough for me.

E
Esperanza M.
A Stronger-Looking Root Area

The root area looks stronger after 4 weeks of regular use. My hair appears better supported where it emerges from the scalp, especially around the part and front hairline. I’m not relying on fibers, oils, or a coating that disappears at the next wash. The improvement is in the overall appearance of the area and the way the hair sits at the root. Because the serum remains low-residue, I’ve been able to use it often enough for that gradual difference to become visible.

A
Abigail V.
Part, Apply, Massage

Part, apply, massage. I work in small sections, place the serum directly on the scalp, and massage for a minute or two. The whole routine takes less time than styling my hair.

B
Brooke D.
A Subtle Density Difference I Can See

I can see a subtle density difference along my part. The line looks less sparse, especially in overhead light. It took consistency, not a miracle week, but there are definitely changes on the way.

M
Mónica G.
The Hair at My Roots Looks Better Supported

The hair at my roots looks better supported. I’ve noticed less of that fragile, flattened appearance around the part and temples, especially when my hair is freshly washed. I apply the serum directly to the scalp rather than coating the lengths, and I’ve stayed consistent for several months. The result is subtle but visible in the way the root area sits and catches light. It looks stronger... not artificially thickened by residue.

A
Ann T.
Watery Means Work in Small Sections

Watery means working in small sections. If I try to cover the whole scalp at once, the serum runs and the application becomes messy. Narrow parts and a few drops at a time give me control. I massage each section immediately, then move on. The extra precision takes another minute, but the reward is a scalp serum that leaves almost no residue and doesn’t interfere with styling. I’ll take a small technique requirement over greasy roots any night.

R
Rosario L.
This Product Only Makes Sense With Consistency

This product is the real deal. I used it nightly and resisted the urge to judge it every morning. The fuller-looking part became clearer after several weeks and the best part.. I reversed about 50% of my gray hair. Like.. growing back in brown in places I haven't seen brown growth in a decade. I have baby hairs growing every where and my roots feel thicker. Like the strand don't feel as wafer thin anymore. I am HOOKED.

A
Araceli N.
No Flat Roots, No Emergency Shampoo

No flat roots and no emergency shampoo... that’s the practical victory. I have fine hair, so I expected an overnight scalp serum to destroy the next day’s style. This dries down so lightly that my roots still move and hold volume. I can use it before a workday, not just the night before wash day. That freedom is probably the biggest reason I’ve stayed consistent long enough to see clear new growth across my whole head.

H
Holly L.
Skin Doesn't Stop at the Hairline

I've never really considered my scalp before. This serum changed that. I’m giving the scalp direct hydration and targeted peptide care instead of coating the hair and hoping something reaches the root. The watery texture makes sense for that purpose. It absorbs quickly, feels comfortable overnight, and leaves the lengths alone. Once I started thinking of the scalp as skin, the nightly step felt much less optional. I received this product in exchange for my honest review.

B
Brittany Q.
The Application Took One Night to Learn

The application took one night to learn. I started by dispensing too much in one place, and the liquid ran into my face. The next evening, I made narrow parts, used small drops, and massaged each section before moving on. That method keeps the formula on the scalp and gives me even coverage with less product. Once the technique clicked, the step became fast enough to do every night without thinking about it. I have hair regrowing all over my head after just 6 weeks and I am thrilled!!

B
Beatriz E.
The Overnight Step That Doesn't Create a Morning Problem

This is an overnight step that doesn’t create a morning problem. The serum dries without greasing the roots, so I can brush, style, and leave the house normally. I don’t have to choose between scalp care and presentable hair. With my monoxidil I could get maybe two nights of use and then I have to wash. I can go a whole week with this serum before having to wash my hair.

A
Angela U.
The Two-Minute Massage Became the Best Part

I have been on a GLP-1 for two years and have lost a lot of hair. This is regrowing it ALL over my head. I wish I would have taken pictures but I am so jaded from stuff that is snake oil I thought this would be too. NOPE. My hair is finally coming back!!

E
Eleanor L.
The Serum for a Tight, Dry-Feeling Scalp

My scalp can feel tight and dry even when the hair itself looks oily, which makes most treatments frustrating. This serum gives the skin underneath the hair a light layer of hydration without adding grease to the roots. I concentrate it along the crown and part, massage for two minutes, and leave it overnight. By morning, the scalp feels more comfortable and less distracted by dryness. The result is relief I can feel without a finish anyone else can see. I have just started it so we will see what my long term results will be.

E
Ellen I.
Apply at Night, Forget It by Morning

I apply this at night and forget about it by morning. The serum absorbs quickly, doesn’t leave my pillow oily, and doesn’t force me to change my wash schedule. I part my hair, use a small amount directly on the scalp, massage briefly, and go to bed. By morning, the roots feel clean and the scalp feels comfortable. That low-maintenance finish is what turns a good formula into a routine I can actually keep. I received this product in exchange for my honest review.

A
Ashley C.
A Small Scalp Ritual at the End of the Day

The scalp massage has become a small end-of-day ritual. I part my hair slowly, apply the serum where I can see the scalp, and work it in with my fingertips for about two minutes. The liquid texture feels cool and refreshing, and the massage releases more tension than I expected. There’s no additional product afterward and no complicated wrapping or washing. It’s a quiet, focused step that makes the scalp feel included in the rest of my care. I received this product in exchange for my honest review.

G
Gloria J.
The Temple Areas Look Better Supported

The temple areas look better supported after consistent use. They’re still naturally finer than the rest of my hair, but the root area appears less delicate and the contrast with my scalp isn’t as obvious. I like that the serum can be targeted exactly where I want it.

A
Autumn I.
A Coordinated Scalp Formula, Not One Hero Ingredient

This feels like a coordinated scalp formula rather than a bottle built around one fashionable ingredient. The copper peptide and complementary peptides address the fuller-looking, stronger-looking story, while caffeine, niacinamide, panthenol, amino acids, and humectants support the scalp environment. The finished serum stays light enough for repeated use, which is essential. This is an easy step to keep in the routine and so far, I am already noticing baby hairs coming in.

I
Isabela A.
Half a Milliliter Goes Farther Than It Sounds

Half a milliliter goes farther than it sounds when the application is precise. I part the hair and place small drops directly on the scalp instead of pouring it through the lengths. The bottle lasts much longer that way. I received this product in exchange for my honest review.

A
Amelia M.
The Leave-In I Can't Feel by Morning

This is the leave-in I can’t feel by morning. I apply it directly to the scalp at night, massage it in, and the texture seems to disappear as it dries. There’s no sticky root line, no greasy residue on my fingers the next day, and no need to wash solely because I used a treatment. The scalp feels lightly hydrated, while the hair keeps its normal movement. That sensory invisibility is a major technical achievement in a product meant for consistent use.

G
Ginny A.
I Finally Treated My Scalp Like Skin

Post-partum hair is no joke. I have lost probably half of it since having my son. I just stopped breastfeeding so I am excited to give this a try. This is the first scalp treatment I can use that doesn't make my hair oily or sticky and doesn't use harmful steroids or pharmaceuticals

Z
Zainab P.
There's a Learning Curve, and It's Worth It

There’s a learning curve because the serum is almost as thin as water. The first night I used too much and chased it through my hair. Small sections solved everything. Now the application is quick, clean, and worth the extra precision.

K
Kate I.
The Monthly Photos Told the Story

The monthly photos told the story better than the mirror. Day to day, the change was too gradual to track. Side-by-side, my part looked less emphasized and the hairline appeared fuller. Consistent lighting kept me honest and made the progress easier to appreciate.

H
Hope U.
The Peptide Stack Is the Point

The peptide stack is the point. AHK-Cu, Acetyl Tetrapeptide-3, and Biotinoyl Tripeptide-1 are working inside a formula built specifically for the scalp, with caffeine, niacinamide, panthenol, and NMF-style hydration around them. It feels coordinated rather than dependent on one hero ingredient and as a long time peptide user I knew exactly what was possible. I am taking it in the hopes it will regrow the hair I lost after an illness. i have high hopes and expectations, but so far, I am happy with the formula.

S
Samantha Q.
My Scalp Feels Hydrated, Not Coated

My scalp feels hydrated after this, but not coated. The watery serum takes away that tight, dry feeling without leaving a greasy film around the roots. By morning, I can feel the comfort and barely feel the product.

N
Nadia M.
A More Comfortable Scalp by Morning

My scalp feels more comfortable by morning. The tight, dry sensation I used to notice around the crown is much less distracting, and there’s no oily residue replacing it. The serum gives hydration without making the scalp feel sealed.

B
Blanca B.
Targeted Care for My Hairline

I focus this around my hairline and temples, where the root area has started looking more delicate. The serum disappears without leaving those front sections greasy, so I can use it consistently and still style my hair the next morning. Over time, those areas now look fuller and I also think I have less greys.

D
Dan N.
Very impressive AHK-based formula

As a sports physician, I know a lot about peptides. I have been using BP-157 and KPV for some time with my athletes. I have been wanting to try AHK and this is the first topical I have found in the US that seems authentic and promising. 5 stars for the formula and the authenticity of the peptide. I will keep you posted.

M
Makayla E.
My Fine Hair Still Has Lift the Next Morning

My hair is fine enough that one oily scalp product can ruin the next morning. This doesn’t. My roots still have lift, and I don’t need an emergency shampoo after using it overnight.

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