EQUINOX SHAMPOO

Strengthening Cleanse · Strengthen System

Product Overview

Equinox Shampoo is a strengthening cleanser designed to reinforce the hair fiber while maintaining flexibility, comfort, and control.


This formula cleanses thoroughly while delivering targeted protein and conditioning support that helps improve hair integrity and resilience. Hair feels stronger and more supported through cleansing, without becoming rigid, dry, or brittle.


Equinox is designed for hair that benefits from structure and reinforcement — where strength is essential, but movement and manageability remain non-negotiable.

Defined by Science

Equinox Shampoo helps hair:


  • Feel reinforced and more resilient through cleansing
  • Maintain flexibility and natural movement
  • Detangle more easily with improved fiber cohesion
  • Appear smoother, stronger, and more controlled
  • Remain comfortable at the scalp while supporting strand integrity

The experience is fortifying yet refined — strength that integrates seamlessly into daily care without overwhelming the hair.

Guided by Nature

Equinox is guided by ingredients selected to support fiber reinforcement, elasticity, and strength balance.

Keratin, Wheat & Silk Proteins
Help reinforce the hair fiber and support improved cohesion and durability.


Baobab Protein
Supports flexibility and tensile strength, helping hair resist breakage while remaining pliable.


Niacinamide & Panthenol
Support resilience and surface smoothness while maintaining scalp and strand comfort.


Meadowfoam Seed Oil & Olive Squalane
Help preserve softness, control, and manageability as strength is restored.


Together, these elements deliver strength that feels integrated, controlled, and wearable.

Balanced by Design

Equinox Shampoo is for hair that benefits from added strength and reinforcement.


It is well suited for hair that feels weakened, overextended, or less resilient, as well as hair exposed to heat, styling, or environmental stress. Equinox supports strength-focused care without sacrificing flexibility or feel.

How to Use

  • Apply to wet hair and massage through scalp and lengths.
  • Rinse thoroughly. Repeat if needed.
  • Follow with Equinox Conditioner or layer with other Sizigē systems as hair needs evolve.

Part of the Strengthen System

Equinox Shampoo is the cleansing foundation of the Strengthen System, designed to reinforce hair structure while maintaining balance and control.


It prepares hair for strengthening treatments and integrates seamlessly with Align, Hydrate, and Renew systems to support long-term hair performance.

Ingredients (INCI)

Water (Aqua), Sodium C14-16 Olefin Sulfonate, Decyl Glucoside, Sodium Lauroyl Lactylate, Sodium Cocoyl Isethionate, Cocamidopropyl Hydroxysultaine, Cocamidopropyl Betaine, Cetrimonium Chloride, Hydrolyzed Keratin, Hydrolyzed Wheat Protein, Glyceryl Stearate, Stearic Acid, Glycol Distearate, Amodimethicone, Sodium PCA, Wheat Amino Acids, Panthenol, Hydrolyzed Adansonia Digitata Seed Protein, Hydrolyzed Silk, Limnanthes Alba (Meadowfoam) Seed Oil, Squalane, Propanediol, Hydroxypropyl Cyclodextrin, Tremella Fuciformis Sporocarp Extract, Serenoa Serrulata Fruit Extract, Camellia Sinensis Leaf Extract, Myrciaria Dubia Fruit Extract, Bambusa Vulgaris Ferment Filtrate, Pisum Sativum (Pea) Peptide, Copper Tripeptide-1, PEG-40 Hydrogenated Castor Oil, Polysorbate 20, Di-PPG-2 Myreth-10 Adipate, Ethylhexyl Olivate, Phenoxyethanol, Caprylyl Glycol, Fragrance (Parfum), Tocopherol, Niacinamide, Xanthan Gum, Citric Acid.