Neptune is a targeted scalp serum designed to support the environment where hair grows.

This lightweight leave-on treatment focuses on scalp vitality and follicle support — helping maintain balance, comfort, and performance without disrupting daily routines or styling. Neptune absorbs cleanly, leaving the scalp feeling refreshed and supported rather than coated or congested.

Neptune reinforces the foundation for stronger, fuller-looking hair while maintaining clarity at the scalp.

• Support follicle signaling and scalp vitality at the biological level
• Encourage circulation, nutrient availability, and cellular activity at the scalp
• Reinforce the biochemical conditions associated with healthy hair density and growth cycles
• Support energy, resilience, and responsiveness within the follicular environment
• Deliver targeted actives through a disciplined, non-disruptive delivery system

The formula integrates amino acids, peptides, bio-stimulatory botanicals, and signaling compounds to support scalp function where hair growth is initiated and regulated.

Key science-driven contributors include:

L-Arginine
Supports nitric oxide pathways associated with circulation and nutrient delivery.

Caffeine
Supports follicle stimulation and helps counteract fatigue at the scalp level.

Niacinamide (Vitamin B3)
Supports scalp barrier function, circulation, and cellular energy.

Hexapeptide-11
Supports cellular longevity and follicular signaling pathways.

Copper Peptides (GHK-Cu / AHK-Cu)
Support follicle vitality, tissue integrity, and biological signaling.

Panthenol (Provitamin B5)
Supports scalp comfort and fiber resilience during active treatment phases.

Neptune delivers measurable biological intent without inflammatory stimulation or surface congestion, allowing consistent use within a growth-support system.

Red Clover Extract
Traditionally associated with scalp balance and follicular activity.

Green Tea Extract
Provides antioxidant support, helping maintain a clear, energized scalp environment.

White Tea Extract
Supports environmental resilience with a refined, gentle polyphenol profile.

Saccharum Officinarum (Sugar Cane) Extract
Helps maintain hydration balance and surface comfort at the scalp.

Pea Peptides
Support density signaling and follicle anchoring, contributing to fuller-appearing hair.

Maca Root Peptides
Traditionally associated with vitality and biological endurance at the root.

Together, these botanicals help support a responsive, energized scalp environment — reinforcing conditions associated with strength, density, and sustained hair performance.

Neptune is designed for scalps that require active stimulation with restraint. The formula balances a high-performance active load with controlled delivery so that it:

• Supports repeated use without irritation or rebound imbalance
• Maintains scalp comfort while delivering stimulation
• Integrates seamlessly into daily or treatment-based routines
• Complements cleansing, conditioning, and leave-in scalp systems without interference

Neptune functions as a precision activation step, supporting follicular performance while preserving long-term scalp stability.

• Apply directly to the scalp on clean or dry hair.
• Massage gently to distribute.
• Do not rinse.
• Use as part of the Stimulate System.

Neptune is part of the Stimulate System — Sizigē's targeted approach to scalp vitality and follicle support.

It works alongside Magnitude Shampoo, Magnitude Mask, and Quasar to support the environment from which hair grows, while remaining compatible with other Sizigē systems and styling routines.