Energy-efficient manufacturing trumps natural ingredients in reducing cosmetic carbon footprint
16 Oct 2023 --- A recent UK study has illustrated a crucial aspect of cosmetic production: Energy consumption. In a world where “green” and “natural” beauty products are gaining prevalence, the research challenges the belief that natural formulations are inherently more eco-friendly.
The study “Sustainability by Reduced Energy Consumption during Manufacturing: The Case of Cosmetic Emulsions” delves into the complex issue of energy input in emulsion manufacturing and its environmental impact.
The study focuses on thermal and mechanical energy as the two main contributors to energy input in cosmetic manufacturing, with thermal energy being dominant. The research compares two primary emulsion types — oil-in-water (O/W) and water-in-oil (W/O) — represented by standard and natural variants. The manufacturing processes in question include traditional hot, hot-cold and cold emulsification methods.
The research findings reveal that the most significant energy consumption reduction arises not from switching to natural ingredients but from altering the manufacturing process. Through adopting hot-cold emulsification, the study attains energy savings of approximately 82% for O/W emulsions and 86% for W/O emulsions, compared to the traditional hot process.
In the conventional manufacturing process, heating and cooling are recognized as the primary culprits driving energy consumption. Therefore, the study stresses that the critical path to shrinking the carbon footprint of cosmetic products lies in reducing the necessity for heating.
Prioritizing energy efficiency over ingredients
The results suggest that cosmetic companies can considerably lower their environmental impact by choosing the hot-cold emulsification process. However, this energy-efficient approach may involve minor modifications to formulations and ingredients, ensuring that the final products maintain their quality.
Cosmetic companies can considerably lower their environmental impact by choosing the hot-cold emulsification process.
The study uncovers that the impact of the manufacturing process overshadows the environmental benefits of switching to natural ingredients. The researchers found that the total carbon footprint remains almost unchanged between standard and natural formulations, underscoring the importance of prioritizing energy-efficient production methods over ingredient selection.
These findings challenge the widespread notion that natural ingredients are inherently more environmentally sustainable.
They highlight that energy consumption during ingredient manufacturing, extraction and processing plays a significant role in the overall environmental impact. While natural ingredients are often deposited for eco-friendliness, this study emphasizes the need to consider the entire lifecycle, from raw material production to product manufacturing.
Reduce thermal energy use
The research ultimately provides valuable insights for the cosmetic industry, suggesting that adopting energy-efficient manufacturing processes is the most effective way to reduce its carbon footprint. Cosmetic brands can take a significant step toward a more sustainable and eco-friendly future by minimizing thermal energy usage.
As the cosmetics industry continues to adapt to growing environmental concerns, this study serves as a guide, highlighting the importance of prioritizing energy efficiency in pursuing sustainability.
With industry professionals, manufacturers and consumers looking for ways to reduce the environmental impact of cosmetics, this research provides critical insights into how different manufacturing processes and ingredient choices can significantly influence the industry’s ecological footprint.
For cosmetics brands, the key takeaway is addressing the industry’s high energy consumption. Instead of focusing on switching to natural ingredients, cosmetic companies should prioritize energy-efficient manufacturing processes, such as hot-cold emulsification, which can substantially reduce the carbon footprint of their products.
By Venya Patel
