A calm marble surface with stones and botanicals in soft daylight
FORTIFY SYSTEM

Fortify System

Structural Support + Resilience

Fortify

System Overview

In order to help hair retain its elasticity, manageability, and long-term performance, this approach focuses on creating a stronger, more responsive foundation.

Model with strong, resilient hair
follicle, scalp, strand.

FORTIFY — Powered by TriCore Complex™

TriCore Complex™, a component of the Fortify System, combines surface conditioning and protein support to reinforce the hair fiber without making it hard.

TriCore maintains flexibility and touchability while allowing strength to develop gradually through the balance of bioavailable proteins, peptides, and emollients. Without becoming brittle or losing its suppleness, hair feels more stable and durable.

This method maintains natural movement while supporting structural integrity.

About TriCore Complex™

Three forces, one formula

How Fortify works

Sizige Stratus Leave-In Strengthening Conditioner from the Fortify System

Defined by Science

Fortify formulas are engineered to reinforce hair structure, elasticity, and resilience through a deliberate protein architecture.

Close-up of a strengthening conditioner texture

Guided by Nature

Hydrolyzed Quinoa Protein and Prickly Pear Seed Oil support strength and flexibility while improving hair integrity, resilience, and surface smoothness.

Portrait of a model with elastic, well-conditioned hair

Balanced by Design

The Fortify System supports durable hair performance while maintaining softness and natural movement.

The Sizige Fortify System lineup — Equinox Resilience Shampoo, Stratus and Equinox Recovery Mask
In practice

System Approach

The Fortify System features products designed to reinforce hair integrity without stiffness. Equinox Revitalizing Shampoo cleanses while supporting strength and structural integrity. Equinox Revitalizing Mask reinforces resilience and elasticity. Stratus Leave-In Conditioner supports strength and control throughout the day.

Fortify System

Products in this system

Explore the Fortify System

Constellation Club

Join the Constellation Club for exclusive access to launches, offers, and training.

Stay aligned with the latest in hair innovation. Get early access to new formulas, expert tips, and exclusive member rewards designed to keep your hair — and your knowledge — in perfect balance.

Contact Us

Send us a message and a member of our team will get back to you.