Sustainability Report – Shower Gel

1. Product Overview

Shower Gel is a surfactant-based cleansing formulation designed for daily personal hygiene. Modern formulations typically use plant-derived surfactants, natural moisturizers, and eco-safe preservatives, reducing environmental and aquatic impact while maintaining effective cleansing performance.

2. Environmental Sustainability Assessment

A. Raw Materials

• Use of coconut/sugar-derived surfactants lowers carbon footprint by 40–60% compared to petroleum-based surfactants.

• Inclusion of botanical extracts (aloe, glycerin) enhances biodegradability and avoids persistent organic pollutants (POPs).

• Free from SLS/SLES, parabens, microplastics → decreased aquatic toxicity.

B. Manufacturing Impact

• Low-heat, water-based blending process.

• Estimated energy usage: 28–32 kWh per 1000 units, lower than emulsion-based cosmetic products.

C. Packaging

• HDPE/PET bottle compatible with recycling systems.

• PCR-plastic packaging reduces plastic-related CO₂ emissions by up to 65–70% compared to virgin plastic.

D. Biodegradability & Water Impact

• Surfactants achieve >90% biodegradability (OECD 301) within 28 days.

• No persistent microplastics → reduced long-term accumulation in rivers and marine systems.

3. Estimated Carbon Footprint (per 250 ml bottle)

• Raw materials: 0.21 kg CO₂e

• Manufacturing: 0.03 kg CO₂e

• Packaging: 0.07 kg CO₂e

• Transport (500 km avg): 0.05 kg CO₂e

Total Estimated Footprint:

≈ 0.36 kg CO₂e per 250 ml bottle

(Conventional chemical-based shower gels produce 0.50–0.55 kg CO₂e.)

4. Scientific Calculation – Surfactant Environmental Persistence Reduction

Objective:

To quantify how choosing plant-based surfactants reduces environmental persistence vs. petroleum surfactants.

Assumptions:

• Biodegradability of petroleum surfactants = 60%

• Biodegradability of plant-based surfactants = 92%

• Surfactant content per 250 ml bottle = 12% (≈30 g)

• Persistence = grams of non-biodegraded material

Calculation:

A. Petroleum-Based Surfactants:
Non-biodegraded = 30 g × (1 − 0.60)
= 12 g

B. Plant-Based Surfactants (Shower Gel):
Non-biodegraded = 30 g × (1 − 0.92)
= 2.4 g

Reduction in Persistent Material:

12 g − 2.4 g = 9.6 g less persistent surfactant

Percentage Reduction:

(9.6 / 12) × 100 = 80% reduction

References

1. OECD 301 Series – Ready Biodegradability Test Guidelines.

2. ISO 14040/44 – Life Cycle Assessment Standards.

3. UNEP (2022). Surfactant Environmental Impact Assessment.

4. IPCC (2023). Emission Factor Database for Transport & Consumer Goods.

5. Plastics Europe (2021). Carbon Footprint of HDPE/PET & PCR Plastic.

6. Patel & Shen (2009). Environmental Performance of Bio-Based Surfactants.

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