Sustainability Scientific Report: Anti-Acne Foaming Face Wash

1. Introduction

Anti-acne foaming face washes are popular cosmetic products designed to cleanse the skin and reduce acne. While effective for personal care, their production and disposal raise sustainability concerns, particularly in terms of environmental footprint, packaging waste, and ingredient sourcing.

2. Objectives

• Assess the sustainability of an anti-acne foaming face wash.

• Evaluate carbon footprint, water usage, and toxicity.

• Propose recommendations for improvement.

3. Product Composition

A typical anti-acne foaming face wash includes:

• Active Ingredients: Salicylic acid or benzoyl peroxide

• Surfactants: Sodium lauryl sulfate (SLS) or sodium laureth sulfate (SLES)

• Preservatives: Parabens or phenoxyethanol

• Fragrance & Dyes

• Packaging: Plastic (HDPE or PET)

4. Life Cycle Assessment (LCA)

4.1 Stages Analyzed

• Raw material extraction

• Manufacturing

• Packaging

• Transportation

• Use phase

• End-of-life (disposal/recycling)

4.2 Functional Unit

Analysis is based on 100 mL of face wash, used over approximately 30 days.

5. Scientific Calculations

5.1 Carbon Footprint

Emission Sources:

• Raw materials (chemicals): ~1.5 kg CO₂e

• Plastic packaging (HDPE bottle): ~0.07 kg CO₂e

• Manufacturing & transport: ~0.3 kg CO₂e

Total carbon footprint = 1.87 kg CO₂e / 100 mL

🔬 According to data from Ecoinvent 3.8 and DEFRA emission factors.

5.2 Water Usage

• Water in formulation: ~70 mL per 100 mL product

• Water for production and cleaning: ~2 L

• User water usage (face rinsing): ~1 L per wash × 30 = 30 L

Total water footprint ≈ 32.07 L / 100 mL use

💧 Ref: Water Footprint Network & ISO 14046.

5.3 Biodegradability and Ecotoxicity

• Surfactants like SLS/SLES: Poor biodegradability, toxic to aquatic life at high concentrations.

• Preservatives (e.g., parabens): Endocrine-disrupting potential, moderate persistence in water systems.

🧪 Ref: EU REACH database, Environmental Working Group (EWG) scores.

6. Sustainability Analysis

7. Recommendations for Sustainable Improvement

1. Replace SLS/SLES with coconut-derived surfactants (e.g., coco-glucoside).

2. Use biodegradable preservatives like ethylhexylglycerin.

3. Switch packaging to bioplastic or glass.

4. Offer refill packs or solid bar formats.

5. Obtain certifications: COSMOS, EWG Verified, Cradle to Cradle.

8. References

1. Ecoinvent Database 3.8 – Lifecycle inventory data for chemicals and plastics

2. DEFRA (2022) – UK Government GHG Conversion Factors

3. Water Footprint Network – Global average water usage metrics

4. European Chemicals Agency (ECHA) – REACH Substance Database

5. ISO 14040 & 14044 – LCA Methodology Standards

6. Environmental Working Group (EWG) – Cosmetic ingredient safety data

7. Journal of Cleaner Production (2021) – Life Cycle Assessment in Personal Care Products

8. Science of the Total Environment (2020) – Environmental fate of personal care preservatives