Sulfate-Free Shampoo Market Size, Share and Forecast

Table Of Content

Executive Summary

Research Scope & Segmentation

Research Objectives
Limitations & Assumptions
Market Scope & Segmentation
Currency & Pricing Considered

Market Opportunity Assessment

Emerging Regions / Countries
Emerging Companies
Emerging Applications / End Use

Market Trends

Drivers
Market Warning Factors
Latest Macro Economic Indicators
Geopolitical Impact
Technology Factors

Market Assessment

Porters Five Forces Analysis
Value Chain Analysis

Regulatory Framework

North America
Europe
APAC
Middle East and Africa
LATAM

ESG Trends

Global Sulfate-Free Shampoo Market Size Analysis

Global Sulfate-Free Shampoo Market Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value

North America Market Analysis

Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value
U.S.
1. By Product Type
  1. Introduction
    1. Product Type By Value
  2. Cream-based sulfate-free shampoos
    1. By Value
  3. Liquid Sulfate-Free Shampoos
    1. By Value
  4. Foaming Sulfate-Free Shampoos
    1. By Value
  5. Dry/Waterless Sulfate-Free Shampoos
    1. By Value
  6. 2-in-1 Sulfate-Free Shampoo and Conditioner
    1. By Value
2. By Application
  1. Introduction
    1. Application By Value
  2. Daily cleansing
    1. By Value
  3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
    1. By Value
  4. Scalp Health and Sensitivity Management
    1. By Value
  5. Anti-Dandruff and Medicated Use
    1. By Value
  6. Colour-Treated Hair Maintenance
    1. By Value
  7. Curly and Textured Hair Hydration
    1. By Value
3. By Hair Concern
  1. Introduction
    1. Hair Concern By Value
  2. Colour-treated hair
    1. By Value
  3. Frizz and Dryness Control
    1. By Value
  4. Hair Fall and Breakage Prevention
    1. By Value
  5. Sensitive Scalp and Allergic Reactions
    1. By Value
  6. Oily Scalp Balancing
    1. By Value
  7. Dandruff and Flaking Issues
    1. By Value
4. By Distribution Channel
  1. Introduction
    1. Distribution Channel By Value
  2. E-commerce platforms
    1. By Value
  3. Supermarkets and Hypermarkets
    1. By Value
  4. Specialty Beauty and Cosmetic Stores
    1. By Value
  5. Pharmacies and Drugstores
    1. By Value
  6. Online Retail Platforms
    1. By Value
  7. Salon Chains and Professional Outlets
    1. By Value
5. By End-User
  1. Introduction
    1. End-User By Value
  2. Women (All Age Groups)
    1. By Value
  3. Men (Daily Grooming and Scalp Care)
    1. By Value
  4. Children and Babies (Mild Formulations)
    1. By Value
  5. Professional Salons and Stylists
    1. By Value
  6. Dermatology Clinics and Trichology Centers
    1. By Value
Canada

Europe Market Analysis

Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value
U.K.
1. By Product Type
  1. Introduction
    1. Product Type By Value
  2. Cream-based sulfate-free shampoos
    1. By Value
  3. Liquid Sulfate-Free Shampoos
    1. By Value
  4. Foaming Sulfate-Free Shampoos
    1. By Value
  5. Dry/Waterless Sulfate-Free Shampoos
    1. By Value
  6. 2-in-1 Sulfate-Free Shampoo and Conditioner
    1. By Value
2. By Application
  1. Introduction
    1. Application By Value
  2. Daily cleansing
    1. By Value
  3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
    1. By Value
  4. Scalp Health and Sensitivity Management
    1. By Value
  5. Anti-Dandruff and Medicated Use
    1. By Value
  6. Colour-Treated Hair Maintenance
    1. By Value
  7. Curly and Textured Hair Hydration
    1. By Value
3. By Hair Concern
  1. Introduction
    1. Hair Concern By Value
  2. Colour-treated hair
    1. By Value
  3. Frizz and Dryness Control
    1. By Value
  4. Hair Fall and Breakage Prevention
    1. By Value
  5. Sensitive Scalp and Allergic Reactions
    1. By Value
  6. Oily Scalp Balancing
    1. By Value
  7. Dandruff and Flaking Issues
    1. By Value
4. By Distribution Channel
  1. Introduction
    1. Distribution Channel By Value
  2. E-commerce platforms
    1. By Value
  3. Supermarkets and Hypermarkets
    1. By Value
  4. Specialty Beauty and Cosmetic Stores
    1. By Value
  5. Pharmacies and Drugstores
    1. By Value
  6. Online Retail Platforms
    1. By Value
  7. Salon Chains and Professional Outlets
    1. By Value
5. By End-User
  1. Introduction
    1. End-User By Value
  2. Women (All Age Groups)
    1. By Value
  3. Men (Daily Grooming and Scalp Care)
    1. By Value
  4. Children and Babies (Mild Formulations)
    1. By Value
  5. Professional Salons and Stylists
    1. By Value
  6. Dermatology Clinics and Trichology Centers
    1. By Value
Germany
France
Spain
Italy
Russia
Nordic
Benelux
Rest of Europe

APAC Market Analysis

Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value
China
1. By Product Type
  1. Introduction
    1. Product Type By Value
  2. Cream-based sulfate-free shampoos
    1. By Value
  3. Liquid Sulfate-Free Shampoos
    1. By Value
  4. Foaming Sulfate-Free Shampoos
    1. By Value
  5. Dry/Waterless Sulfate-Free Shampoos
    1. By Value
  6. 2-in-1 Sulfate-Free Shampoo and Conditioner
    1. By Value
2. By Application
  1. Introduction
    1. Application By Value
  2. Daily cleansing
    1. By Value
  3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
    1. By Value
  4. Scalp Health and Sensitivity Management
    1. By Value
  5. Anti-Dandruff and Medicated Use
    1. By Value
  6. Colour-Treated Hair Maintenance
    1. By Value
  7. Curly and Textured Hair Hydration
    1. By Value
3. By Hair Concern
  1. Introduction
    1. Hair Concern By Value
  2. Colour-treated hair
    1. By Value
  3. Frizz and Dryness Control
    1. By Value
  4. Hair Fall and Breakage Prevention
    1. By Value
  5. Sensitive Scalp and Allergic Reactions
    1. By Value
  6. Oily Scalp Balancing
    1. By Value
  7. Dandruff and Flaking Issues
    1. By Value
4. By Distribution Channel
  1. Introduction
    1. Distribution Channel By Value
  2. E-commerce platforms
    1. By Value
  3. Supermarkets and Hypermarkets
    1. By Value
  4. Specialty Beauty and Cosmetic Stores
    1. By Value
  5. Pharmacies and Drugstores
    1. By Value
  6. Online Retail Platforms
    1. By Value
  7. Salon Chains and Professional Outlets
    1. By Value
5. By End-User
  1. Introduction
    1. End-User By Value
  2. Women (All Age Groups)
    1. By Value
  3. Men (Daily Grooming and Scalp Care)
    1. By Value
  4. Children and Babies (Mild Formulations)
    1. By Value
  5. Professional Salons and Stylists
    1. By Value
  6. Dermatology Clinics and Trichology Centers
    1. By Value
Korea
Japan
India
Australia
Taiwan
South East Asia
Rest of Asia-Pacific

Middle East and Africa Market Analysis

Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value
UAE
1. By Product Type
  1. Introduction
    1. Product Type By Value
  2. Cream-based sulfate-free shampoos
    1. By Value
  3. Liquid Sulfate-Free Shampoos
    1. By Value
  4. Foaming Sulfate-Free Shampoos
    1. By Value
  5. Dry/Waterless Sulfate-Free Shampoos
    1. By Value
  6. 2-in-1 Sulfate-Free Shampoo and Conditioner
    1. By Value
2. By Application
  1. Introduction
    1. Application By Value
  2. Daily cleansing
    1. By Value
  3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
    1. By Value
  4. Scalp Health and Sensitivity Management
    1. By Value
  5. Anti-Dandruff and Medicated Use
    1. By Value
  6. Colour-Treated Hair Maintenance
    1. By Value
  7. Curly and Textured Hair Hydration
    1. By Value
3. By Hair Concern
  1. Introduction
    1. Hair Concern By Value
  2. Colour-treated hair
    1. By Value
  3. Frizz and Dryness Control
    1. By Value
  4. Hair Fall and Breakage Prevention
    1. By Value
  5. Sensitive Scalp and Allergic Reactions
    1. By Value
  6. Oily Scalp Balancing
    1. By Value
  7. Dandruff and Flaking Issues
    1. By Value
4. By Distribution Channel
  1. Introduction
    1. Distribution Channel By Value
  2. E-commerce platforms
    1. By Value
  3. Supermarkets and Hypermarkets
    1. By Value
  4. Specialty Beauty and Cosmetic Stores
    1. By Value
  5. Pharmacies and Drugstores
    1. By Value
  6. Online Retail Platforms
    1. By Value
  7. Salon Chains and Professional Outlets
    1. By Value
5. By End-User
  1. Introduction
    1. End-User By Value
  2. Women (All Age Groups)
    1. By Value
  3. Men (Daily Grooming and Scalp Care)
    1. By Value
  4. Children and Babies (Mild Formulations)
    1. By Value
  5. Professional Salons and Stylists
    1. By Value
  6. Dermatology Clinics and Trichology Centers
    1. By Value
Turkey
Saudi Arabia
South Africa
Egypt
Nigeria
Rest of MEA

LATAM Market Analysis

Introduction
By Product Type
1. Introduction
  1. Product Type By Value
2. Cream-based sulfate-free shampoos
  1. By Value
3. Liquid Sulfate-Free Shampoos
  1. By Value
4. Foaming Sulfate-Free Shampoos
  1. By Value
5. Dry/Waterless Sulfate-Free Shampoos
  1. By Value
6. 2-in-1 Sulfate-Free Shampoo and Conditioner
  1. By Value
By Application
1. Introduction
  1. Application By Value
2. Daily cleansing
  1. By Value
3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
  1. By Value
4. Scalp Health and Sensitivity Management
  1. By Value
5. Anti-Dandruff and Medicated Use
  1. By Value
6. Colour-Treated Hair Maintenance
  1. By Value
7. Curly and Textured Hair Hydration
  1. By Value
By Hair Concern
1. Introduction
  1. Hair Concern By Value
2. Colour-treated hair
  1. By Value
3. Frizz and Dryness Control
  1. By Value
4. Hair Fall and Breakage Prevention
  1. By Value
5. Sensitive Scalp and Allergic Reactions
  1. By Value
6. Oily Scalp Balancing
  1. By Value
7. Dandruff and Flaking Issues
  1. By Value
By Distribution Channel
1. Introduction
  1. Distribution Channel By Value
2. E-commerce platforms
  1. By Value
3. Supermarkets and Hypermarkets
  1. By Value
4. Specialty Beauty and Cosmetic Stores
  1. By Value
5. Pharmacies and Drugstores
  1. By Value
6. Online Retail Platforms
  1. By Value
7. Salon Chains and Professional Outlets
  1. By Value
By End-User
1. Introduction
  1. End-User By Value
2. Women (All Age Groups)
  1. By Value
3. Men (Daily Grooming and Scalp Care)
  1. By Value
4. Children and Babies (Mild Formulations)
  1. By Value
5. Professional Salons and Stylists
  1. By Value
6. Dermatology Clinics and Trichology Centers
  1. By Value
Brazil
1. By Product Type
  1. Introduction
    1. Product Type By Value
  2. Cream-based sulfate-free shampoos
    1. By Value
  3. Liquid Sulfate-Free Shampoos
    1. By Value
  4. Foaming Sulfate-Free Shampoos
    1. By Value
  5. Dry/Waterless Sulfate-Free Shampoos
    1. By Value
  6. 2-in-1 Sulfate-Free Shampoo and Conditioner
    1. By Value
2. By Application
  1. Introduction
    1. Application By Value
  2. Daily cleansing
    1. By Value
  3. Post-Chemical Treatment Care (e.g., Colouring, Straightening)
    1. By Value
  4. Scalp Health and Sensitivity Management
    1. By Value
  5. Anti-Dandruff and Medicated Use
    1. By Value
  6. Colour-Treated Hair Maintenance
    1. By Value
  7. Curly and Textured Hair Hydration
    1. By Value
3. By Hair Concern
  1. Introduction
    1. Hair Concern By Value
  2. Colour-treated hair
    1. By Value
  3. Frizz and Dryness Control
    1. By Value
  4. Hair Fall and Breakage Prevention
    1. By Value
  5. Sensitive Scalp and Allergic Reactions
    1. By Value
  6. Oily Scalp Balancing
    1. By Value
  7. Dandruff and Flaking Issues
    1. By Value
4. By Distribution Channel
  1. Introduction
    1. Distribution Channel By Value
  2. E-commerce platforms
    1. By Value
  3. Supermarkets and Hypermarkets
    1. By Value
  4. Specialty Beauty and Cosmetic Stores
    1. By Value
  5. Pharmacies and Drugstores
    1. By Value
  6. Online Retail Platforms
    1. By Value
  7. Salon Chains and Professional Outlets
    1. By Value
5. By End-User
  1. Introduction
    1. End-User By Value
  2. Women (All Age Groups)
    1. By Value
  3. Men (Daily Grooming and Scalp Care)
    1. By Value
  4. Children and Babies (Mild Formulations)
    1. By Value
  5. Professional Salons and Stylists
    1. By Value
  6. Dermatology Clinics and Trichology Centers
    1. By Value
Mexico
Argentina
Chile
Colombia
Rest of LATAM

Competitive Landscape

Sulfate-Free Shampoo Market Share By Players
M&A Agreements & Collaboration Analysis

Market Players Assessment

L’Oréal S.A.
1. Overview
2. Business Information
3. Revenue
4. ASP
5. SWOT Analysis
6. Recent Developments
Unilever PLC
Procter and Gamble Co. (PandG)
The Honest Company, Inc.
WOW Skin Science (Body Cupid Pvt. Ltd.)
Johnson and Johnson Services, Inc.
OGX (part of Vogue International)
Kérastase (a L’Oréal brand)
Mamaearth (Honasa Consumer Ltd.)
Avalon Organics (Hain Celestial Group)
Herbal Essences (a PandG brand)
Giovanni Cosmetics, Inc.
SheaMoisture (Unilever subsidiary)

Research Methodology

Research Data
1. Secondary Data
  1. Major secondary sources
  2. Key data from secondary sources
2. Primary Data
  1. Key data from primary sources
  2. Breakdown of primaries
3. Secondary And Primary Research
  1. Key industry insights
Market Size Estimation
1. Bottom-Up Approach
2. Top-Down Approach
3. Market Projection
Research Assumptions
1. Assumptions
Limitations
Risk Assessment