Otter Student Union

Refill, Save, Repeat! 

The Otter Student Union and the Sustainability Office are excited to bring Wonderfil to your OSU Lobby—a refill station that makes it easy for CSUMB students and staff to cut down on plastic waste while saving money.

Wonderfil is a women-owned, Santa Cruz-based company leading the way in refill technology. Their mission is simple: help people swap out single-use plastics for sustainable solutions—right here on campus.

What can you refill?

  • Shampoo
  • Laundry Detergent
  • Dr. Bronner’s All-Purpose Soap
  • Moisturizing Hand/Body Wash

(All products come from sustainable, high-quality manufacturers—many based right here in California.)

Why Wonderfil?

  • Students spend an average of $36/month on products like these. Refilling saves money and reduces waste.
  • Every refill = one less single-use plastic bottle in the landfill.
  • It’s quick, easy, and located right in your OSU Lobby.

Come refill, renew, and be part of a greener, more sustainable CSUMB!

Wonderfil, PBC is a women-owned, certified CA small business based in Santa Cruz, California. Founded in 2021 in Santa Cruz by Amelia Eichel, a sustainability leader with a circular economy background, and UCSC Alum Shiloh Sacks, an electrical engineer with EV and hardware expertise, Wonderfil's mission is to systematically reduce plastic waste by enabling college students to refill their daily-use products on campus.

Wonderfil began developing their autonomous refill station technology after receiving a Carbon Fund grant from UCSC and a Tech For Social Good Grant from CITRIS & The Banatao Institute in 2021. In 2022, the company launched prototypes at UC Santa Cruz, UC Berkeley, and Ethos Low Waste Store, testing hardware reliability and gathering user feedback. These pilots attracted further funding from Berkeley SkyDeck, Dr. Bronner’s, and The Westly Foundation which fueled further product development and testing.

In January 2024, Wonderfil became the first company to achieve Weights & Measures certification for a container- and viscosity-agnostic refill device. This milestone enabled a five store retail launch with Whole Foods Market in the Bay Area and the deployment of Wonderfil’s autonomous refill vending machines.  Wonderfil has also been supporting refills for the UCSC community at Redwood Free Market for two years.

With >99% uptime, Wonderfil Refill Stations have prevented over 10,000 plastic bottles from entering the waste stream. As the market leader in refill technology, Wonderfil offers 100% circular liquid and cream product distribution through its innovative intermediate bulk pouch solution. These bulk pouches are compatible with existing supply chains, enable fast restocking of the Wonderfil machines, and are 93% cheaper than single-use plastic bottles.  These operational efficiencies enable Wonderfil to pass cost savings to users and make refilling more affordable than purchasing single-use alternatives.

Watch Wonderfil's demo video

Wonderfil’s suppliers are some of the top sustainable consumer packaged goods (CPG) manufacturers in the country.  We prioritize suppliers that manufacture in California with certified organic and fair trade ingredients.  This enables us to minimize the carbon footprint and distance shipped of the products that we dispense.  We will never dispense products with known carcinogens, allergens, or endocrine disruptors.

Product Description Key Benefits Ingredients
Dr. Bronner's 18-in-1 Castile Soap, Lavender Scent This concentrated soap does it all—use it as dish soap, hand soap, or dilute it to make an all-purpose cleaner. Dr. Bronner’s has some of these most sustainable ingredients in the industry. Beyond their products, they are a force for good, donating much of their profits to social and environmental justice
causes worldwide.
  • Certified Organic 
  • Fair Trade 
  • No harsh chemicals
  • Concentrated, one product for several uses
  • Manufactured in CA
  • Family owned & operated
 Water, Organic Coconut Oil, *± Potassium Hydroxide, † Organic Palm Kernel Oil, *±Organic Olive Oil, *± Lavandin Extract, Organic Hemp Seed Oil, ± Organic Jojoba Wax, Lavender Extract, Citric Acid, Tocopherol, Geraniol, Limonene, Linalool

*CERTIFIED FAIR TRADE
±Regenerative Organic Certified®
† None remains after saponifying oils into soap and glycerin.
Rustic Strength Moisturizing Body and Hand Wash, Milk and Honey Scent This soap is a bit gentler than Dr. Bronner’s and great for sensitive skin. It is moisturizing, so we use it for hand soap, body soap, and shaving. It smells amazing and is made with all natural ingredients.
  • All natural ingredients
  • No harsh chemicals
  • Cruelty free
  • Vegan certified
 Charcoal Filtered Deionized Water, Cocamidopropyl Betaine, Cocamidopropyl Hydroxysultaine, Sodium C14-16 Olefin Sulfonate, Vegetable Glycerin (Glycerin), Polyquaternium 10, Sodium Gluconate, Coco-Glucoside, Caprylyl Capryl Glucoside, Polysorbate 20, Phenoxyethanol, Caprylyl Glycol, Sodium Benzoate, Potassium Sorbate, Citric Acid, Essential Oils and/or Phthalate-Free Fragrance Oil.
ECO Laundry Detergent, Eucalyptus Scent This eucalyptus laundry detergent
deodorizes and washes all fabrics with its mix of essential oils (no synthetic fragrance or dye). It is safe for sensitive skin, babies, washable diapers, technical clothing and delicate fabrics. It’s gentle on skin but washes very
effectively. Just 1 oz per load!
  • Cruelty free
  • Plant based
  • Biodegradable
  • Manufactured in Canada

Water, Laureth-7, Sodium Lauryl Sulfate (Plant-derived Cleaning Agent), Sodium Oleate, Sodium Citrate, Glycerin*, Protease Enzyme, Sodium Chloride (Mineral based), Calcium Chloride, Amylase Enzyme,
Mannanase Enzyme, Lipase Enzyme, Citric Acid*, Benzisothiazolinone, Sodium Carbonate, Essential Oils*

*Plant-based and biodegradable ingredients
BBL Moisturizing Shampoo, Vanilla Scent This vanilla scented shampoo is
formulated to work for all hair types. It’s great for curly hair, straight hair, oily hair and dry scalps. It is deeply cleansing and might reduce vibrancy of dyed hair. It was developed with feedback from college students and we hope you love it as much as we do!
  • Formulated for diverse hair types
  • Vegan certified
  • Cruelty free
  • Manufactured in CA

Water, Sodium C14-C16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Sodium Benzoate, Potassium Sorbate, Aloe Barbadensis Leaf Juice,
*Ethylhexylglycerin, Guar Hydroxypropyltrimonium Chloride, Panthenol, Allantoin, Vanilla Fragrance

*Certified Organic Ingredient.