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OPTIMIZE
OPTIMIZE serum bottle on sandstone with the dropper beside it

GHK-Cu Hair & Scalp Serum

30 mL / 1 fl oz

4.9 · Reviews

FULLER. THICKER. STRONGER.

An advanced copper peptide scalp serum formulated with GHK-Cu, targeted peptides, caffeine, niacinamide and botanical extracts to support healthier-looking hair and improve the appearance of fullness, thickness and density.

$29

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FULLER-LOOKING HAIR

Supports the appearance of greater fullness.

THICKER APPEARANCE

Helps hair look and feel thicker.

HEALTHIER SCALP

Supports an optimal scalp environment.

PEPTIDE-POWERED

Built around GHK-Cu and targeted peptide technology.

THE FORMULA BEHIND OPTIMIZE

A multi-pathway scalp formula built around copper peptides and complementary hair and scalp ingredients.

HERO INGREDIENT

GHK-Cu

COPPER TRIPEPTIDE-1

The hero ingredient. A naturally occurring copper-binding peptide used in advanced cosmetic formulations to support healthier-looking skin and scalp and promote the appearance of stronger, fuller hair.

Blue GHK-Cu serum falling from a glass dropper
acetyl tetrapeptide-3 ingredient

ACETYL TETRAPEPTIDE-3

TARGETED BIOMIMETIC PEPTIDE

A specialized cosmetic peptide selected to support the appearance of stronger, denser-looking hair.

caffeine ingredient

CAFFEINE

SCALP-ACTIVE COMPOUND

A widely studied cosmetic active used in advanced scalp formulations to support healthier-looking, more resilient hair.

niacinamide ingredient

NIACINAMIDE

BARRIER + SCALP SUPPORT

A multifunctional active that helps support the scalp's moisture barrier and maintain a balanced, healthy-looking scalp environment.

saw palmetto ingredient

SAW PALMETTO

DHT-PATHWAY BOTANICAL

A targeted botanical extract studied for its interaction with the DHT pathway, formulated to support a healthy scalp environment and fuller, denser-looking hair.

panthenol ingredient

PANTHENOL

HYDRATION + STRAND CONDITIONING

A conditioning active that helps retain moisture while improving the softness, smoothness and feel of individual hair strands.

rosemary leaf extract ingredient

ROSEMARY LEAF EXTRACT

BOTANICAL SCALP SUPPORT

A concentrated botanical extract selected to complement the formula and support a balanced, healthy-looking scalp.

YOUR JOURNEY

What to expect, week by week

Consistency is what moves the needle.

Below is the typical timeline customers notice when using the serum daily.

1

Day 1

Hair and scalp feel refreshed, nourished, and lightly conditioned after the first application.

2

Weeks 1–2

Strands start to feel softer and look a little more lively with a subtle, healthy shine.

3

Weeks 3–4

Scalp feels more balanced and comfortable; hair looks smoother and easier to manage.

4

Weeks 6–8

Hair appears fuller, stronger, and more resilient with regular daily use.*

5

Weeks 12+

The best visible results come from keeping the routine going every single day.

*Results may vary. Consistent daily use is recommended for best outcomes.

How It Works

60 SECONDS A DAY.

  1. 01

    APPLY

    Apply the recommended amount directly to areas of the scalp where improved hair density is desired.

  2. 02

    MASSAGE

    Gently massage into the scalp with fingertips.

  3. 03

    LEAVE IN

    Allow the serum to absorb. Do not rinse.

  4. Use consistently as part of your daily hair and scalp routine.
Applying OPTIMIZE GHK-Cu serum directly to the scalp with a glass dropper

WHY GHK-Cu?

Copper Tripeptide-1 (GHK-Cu) is a copper-binding peptide naturally present in the human body and widely studied in skin and tissue biology. OPTIMIZE brings GHK-Cu into a daily scalp serum alongside complementary peptides, caffeine, vitamins and botanical extracts.

In advanced cosmetic formulations, GHK-Cu is valued for supporting the look of healthier, more resilient skin and scalp. By applying it directly to the scalp, the formula targets the surface environment where hair begins its growth cycle.

It works alongside caffeine, niacinamide and panthenol in a multi-pathway approach: the scalp feels balanced and conditioned, strands look smoother and more manageable, and hair appears fuller with consistent daily use.

Because hair care is a long game, OPTIMIZE was built as a simple leave-in ritual. One minute a day, every day, is all it takes to support the appearance of stronger, denser-looking hair over time.

DESIGNED FOR YOUR ROUTINE

LIGHTWEIGHT

Designed for easy scalp application.

LEAVE-IN

No complicated treatment routine.

FOR MEN + WOMEN

Designed for anyone looking to improve the appearance of hair fullness and density.

DAILY USE

Simple enough to become part of your everyday routine.

WHAT'S INSIDE

THE SCIENCE

SEVEN TARGETED INGREDIENTS.MULTIPLE PATHWAYS.

Hair and scalp biology is complex. That’s why OPTIMIZE combines seven targeted ingredients selected for their roles in follicle biology, scalp health, hair-fiber quality, and the appearance of fuller, thicker, denser-looking hair.

01 / 07

GHK-Cu

COPPER PEPTIDE TECHNOLOGY

Copper peptides are signaling molecules studied for their roles in tissue remodeling, extracellular-matrix activity, and cellular processes relevant to the hair follicle. Research on the closely related copper peptide AHK-Cu found increased elongation of isolated human hair follicles and increased proliferation of dermal papilla cells. This research used AHK-Cu rather than GHK-Cu, so it supports the biological rationale for copper peptides rather than proving a hair-growth effect for topical GHK-Cu itself.

WHY IT’S IN OPTIMIZE

To bring advanced copper-peptide technology directly to the scalp as the foundation of the formula.

VIEW STUDY
Rendered blue GHK-Cu copper peptide serum and droplet

01 — COPPER PEPTIDE TECHNOLOGY

02 / 07

ACETYL TETRAPEPTIDE-3

TARGETED BIOMIMETIC PEPTIDE

Acetyl Tetrapeptide-3 is a biomimetic peptide used in cosmetic hair-density formulations. Human studies of multi-ingredient formulations containing Acetyl Tetrapeptide-3 have reported improvements in hair-related measurements, although these studies used combination formulas, meaning the results cannot be attributed to Acetyl Tetrapeptide-3 alone.

WHY IT’S IN OPTIMIZE

A targeted peptide selected to complement GHK-Cu and support the appearance of stronger, denser-looking hair.

VIEW STUDY
Rendered interlocking peptide ribbons in clear serum

02 — TARGETED BIOMIMETIC PEPTIDE

03 / 07

CAFFEINE

SCALP-ACTIVE COMPOUND

Topical caffeine has been investigated for its interaction with hair follicles and potential role in supporting hair growth. A 2025 systematic review identified nine clinical trials involving 684 participants and found generally favorable results, while noting that the overall quality of evidence remains limited and stronger controlled trials are needed.

WHY IT’S IN OPTIMIZE

To complement the peptide system with one of the more extensively studied cosmetic actives used in topical hair and scalp formulations.

VIEW STUDY
Rendered coffee bean with caffeine crystal detail

03 — SCALP-ACTIVE COMPOUND

04 / 07

SAW PALMETTO

DHT-PATHWAY BOTANICAL

DHT is formed when 5-alpha-reductase converts testosterone into dihydrotestosterone. Saw palmetto has been investigated for its interaction with androgen-related pathways, including 5-alpha-reductase. Human research involving oral and topical saw-palmetto preparations has reported promising hair-related outcomes, although more rigorous research is needed.

WHY IT’S IN OPTIMIZE

To incorporate a targeted botanical studied for its relationship with DHT-related pathways relevant to hair biology.

VIEW STUDY
Rendered saw palmetto berries and fan palm leaf

04 — DHT-PATHWAY BOTANICAL

05 / 07

ROSEMARY LEAF EXTRACT

BOTANICAL SCALP ACTIVE

Rosemary has attracted scientific interest for its potential role in hair and scalp care. In a randomized comparative trial involving 100 participants with androgenetic alopecia, rosemary oil was associated with a significant increase in hair count after six months. OPTIMIZE contains rosemary leaf extract rather than the rosemary-oil preparation tested in that study, so the clinical results should not be interpreted as results from the OPTIMIZE formula.

WHY IT’S IN OPTIMIZE

To provide complementary botanical scalp support alongside the formula’s peptide and targeted-active systems.

VIEW STUDY
Rendered rosemary sprig resting in clear serum

05 — BOTANICAL SCALP ACTIVE

06 / 07

NIACINAMIDE

BARRIER + SCALP SUPPORT

Niacinamide is a multifunctional cosmetic active known primarily for supporting skin-barrier function, moisture balance, and overall skin condition. Within a hair serum, its strongest role is supporting the scalp environment rather than acting as a direct hair-growth stimulant.

WHY IT’S IN OPTIMIZE

To support the scalp’s moisture barrier and help maintain a balanced, healthy-looking scalp environment.

VIEW RESEARCH
Rendered glossy niacinamide serum glob oozing downward

06 — BARRIER + SCALP SUPPORT

07 / 07

PANTHENOL

HYDRATION + STRAND CONDITIONING

Panthenol works primarily on the hair fiber rather than functioning as a direct follicle-growth active. Research has demonstrated penetration of panthenol into hair and interactions with hair proteins, with treated fibers showing improvements in mechanical properties associated with hair strength.

WHY IT’S IN OPTIMIZE

To hydrate and condition existing hair while helping improve strand softness, smoothness, strength, and overall appearance.

VIEW STUDY
Rendered panthenol moisture ribbon around a hair fiber

07 — HYDRATION + STRAND CONDITIONING

FORMULA SYNTHESIS

MORE THAN A SINGLE-INGREDIENT SERUM

SEVEN TARGETED INGREDIENTS. ONE COMPREHENSIVE FORMULA.

OPTIMIZE combines copper-peptide technology, targeted peptides, botanical actives and scalp-support ingredients into one daily serum designed to support fuller, thicker, denser-looking hair from multiple angles.

OPTIMIZE

FOLLICLE + DENSITY

GHK-Cu • Acetyl Tetrapeptide-3 • Caffeine

HAIR FIBER

Panthenol

SCALP + DHT PATHWAY

Saw Palmetto • Rosemary • Niacinamide

FAQ

OPTIMIZE YOUR HAIR.

A smarter daily approach to fuller, thicker, healthier-looking hair.

TOTAL$29
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OPTIMIZE GHK-Cu Copper Peptide hair and scalp serum bottle

OPTIMIZE Copper Peptide

$29