Household/personal care products

Greener Solutions 2025: Sustainable Solvents for Lubricating Sprays

Link to Final Report

Link to FInal Presentation

In developed countries like the USA, approximately 80% of households own a spray lubricant. The products are ubiqutious and versatile, however their performance relies on petroleum-derived solvents that contribute to volatile organic compound (VOC) emissions, environmental persistence, and potential human health hazards. This project challenged the team to explore safer, bio-based alternatives to...

Greener Solutions 2025: Plastic Free Packaging for Home Cleaning Products

Link to Final Presentation

Link to Final Report

Laundry detergent bottles are typically made from plastics like HDPE and PET—materials chosen for their durability and barrier properties, but also responsible for persistent microplastic pollution and chemical hazards. In this project, the team set out to rethink detergent packaging from the ground up by asking a simple question: Can a container perform like plastic without relying on it?

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Greener Solutions 2024: Alternatives to Quaternary Ammonium Compounds in Hair Conditioners

Final Presentation

Final Report

Quaternary ammonium compounds (quats), like behentrimonium chloride (BTAC) and cetrimonium chloride (CTAC), are commonly used in hair conditioners to make hair smooth, glossy, and easier to comb. However, these compounds pose significant health and environmental risks. L'Oréal is working on finding safer, more biodegradable alternatives, but this is a challenge across the industry.

The goal is to find...

Greener Solutions 2024: Safer Preservatives for Laundry Detergents

Link to Final Report

Link to Final Presentation

Link to Preservative Safety Index Data

This project provides recommendations for finding safer preservatives for laundry detergent, hand soap, and dish soap, aiming to replace phenoxyethanol. It looks for alternatives that are just as effective, or even better, but with fewer health and environmental risks....

Greener Solutions 2023: PVA in Laundry Sheets with ECOS

In partnership with ECOS, this student team examined potential alternatives to PVA (polyvinyl alcohol) in laundry detergent sheets.

Final Presentation

Final Report

Green Materials Innovation Challenge 2023: Hair Relaxers

In this first cohort of Berkeley Changemakers Green Materials Innovation undergraduate course, student teams partnered with Black Women for Wellness to investigate safer alternatives to sodium hydroxide & phthalates in hair relaxers.

Recording of webinar

Recording of Final Presentations

Final reports (undergraduate course):...

Greener Solutions 2022: Safer Nail Polish Solvents & Formulations

In partnership with the California Dept. of Toxic Substances Control and L’Oreal, this student team was tasked with identifying safer alternatives to previously used “bad actor” chemicals, such as toluene, in nail polish formulations.

Final Report Final Presentation Slides Recording of final...

Greener Solutions 2018: Safer Sunscreens

The Safer Sunscreens group identified naturally-sourced compounds such as colorless carotenoids, mycosporine-like amino acids, and vitamin E compounds, for use as potential alternatives to existing sunscreen compounds. These substances may serve as viable alternatives to the benzophenone compounds recently banned in the State of Hawaii. The team based its research on plant and microbial approaches to UV protection. The group also considered the properties of compounds that have been accepted for use in Europe, but not in the United States, with an aim to identify the...

Greener Solutions 2020: PFAS-free home product packaging

The product packaging researchers identified biopolymer films for product packaging for a range of Method Home products, including laundry powders, detergents, and soaps, with a range of moisture barrier needs. The team came up with strategies that fell into three categories: Biopolymer films derived from natural sources, including chitosan, pectin, and gelatin; chemical additive cross-linking film to improve barrier and mechanical properties, including with genipin and ferulic acid; and physical additive nanofillers to reinforce film’s barrier and mechanical properties,...