SIGNAL-CU - FOLLICLE ACTIVATION COMPLEX

SIGNAL-CU™ — Follicle Activation Complex

A multi-pathway, peptide-driven scalp serum designed to support hair density, strength, and overall scalp health. SIGNAL-CU™ combines advanced copper peptide technology with clinically supported growth and support actives to target the key pathways involved in the hair growth cycle.

Formulated with a synergistic blend of peptides, adenosine, melatonin, and circulation-support ingredients, this lightweight system helps promote a healthier scalp environment while supporting the appearance of fuller, stronger hair over time. Barrier-support ingredients like ectoine and panthenol help reduce irritation and maintain hydration, making it suitable for consistent, daily use.

Unlike single-focus formulas, SIGNAL-CU™ is built to support follicle signaling, scalp balance, and growth-cycle optimization—without heaviness or buildup.

Key Active Benefits

• Copper Peptides (GHK-Cu) — Supports follicle signaling, scalp repair, and overall hair resilience

• Biotinoyl Tripeptide-1 — Helps strengthen hair anchoring and reduce shedding appearance

• Acetyl Tetrapeptide-3 — Supports follicle structure and promotes the appearance of fuller, denser hair

• Adenosine — Clinically studied to support hair growth and improve thickness over time

• Caffeine — Stimulates scalp circulation and helps energize hair follicles

• Niacinamide (Vitamin B3) — Supports scalp health, improves circulation, and helps balance oil production

• Panthenol (Pro-Vitamin B5) — Hydrates, strengthens, and improves hair shaft elasticity and shine

• Ectoine — Protects the scalp barrier, reduces irritation, and supports long-term scalp health

• Green Tea Extract — Provides antioxidant support and helps reduce inflammation and DHT-related stress

• Zinc PCA — Helps regulate oil, supports scalp balance, and contributes to a healthier follicle environment..

• AHK-Cu (Copper Tripeptide-3) — Supports follicle signaling pathways, helping improve hair density, strengthen follicles, and promote a healthier scalp environment

• Melatonin — Supports the hair growth cycle by promoting the anagen (growth) phase and reducing shedding.

Full Ingredient List (INCI)

Water (Aqua), Propanediol, Glycerin, Niacinamide, Panthenol, Caffeine, Adenosine, Camellia Sinensis (Green Tea) Extract, Zinc PCA, Ectoine, Melatonin, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Copper Tripeptide-1, Copper Tripeptide-3 , Phenoxyethanol, Ethylhexylglycerin , Diethylene Glycol Monoethyl Ether.

Suggested Use Apply a small amount directly to the scalp once or twice daily. Massage gently into targeted areas. Do not rinse.

Product Details

Size: 4 oz (120 mL)

Texture: Lightweight, fast-absorbing serum

For all hair types

No fillers. No underdosed actives. No unnecessary additives. Just intentional, high-performance formulation.

Unlike our competitors, we believe in showing you what you're buying: 

Niacinamide — 5%

Panthenol — 5%

Caffeine — 2%

Green Tea Extract — 2.5%

Adenosine — 0.75%

Zinc PCA — 0.75%

Ectoine — 0.75%

Biotinoyl Tripeptide-1 — 0.05%

Acetyl Tetrapeptide-3 — 0.03%

Copper Tripeptide-1 (GHK-Cu) — 0.05%

Copper Tripeptide-3 (AHK-Cu) — 0.025%

Melatonin — 0.005%

Penetration Enhancer:

Diethylene Glycol Monoethyl Ether

Certain enhancers in Transcutol systems showed:  up to ~12x flux increase in controlled conditions 

(2-3x absorption rates)