Shampoo Refill Box, 2.5 Gallons

We’re a small, women-led company making safe, effective cleaning and personal care products that are better for your home and better for the planet. We’ve been leading the refill movement since 2010—with formulas you can trust and packaging designed to reduce waste at every step.

Read more on our About Us page.

Yes. Our innovative formulas are powered by plant-based surfactants and enzymes that break down grime, grease, and stains without harsh chemicals. We test every product with a 3rd party to make sure it performs as well as (or better than) the big brands—just without the toxins.

Absolutely. Our formulas are non-toxic, hypoallergenic, and made with biodegradable ingredients. No sulfates, no synthetic fragrance, no harsh preservatives. Safe for babies, pets, and anyone with sensitive skin.

1. When your Refill Box is empty tear open and recycle the refill box.
2. Remove and retain the spigot for your next box (saves you $3). If it needs a clean, you can wash in warm water, or put in the utensil tray of your dishwasher.
3. Remove the plastic liner. If it has any soap residue, please rinse out with water. Please drain well but it doesn't have to be dry to ship back to us.
4. Collapse plastic liner by folding in half and pressing air out.
5. Screw cap back onto collapsed liner.
6. Stack multiple liners and put them into the box. Please send back a minimum of 4 liners at a time.
7. Email us here to request a return label. Please include your name, ship from address, and approximate weight and measurements of the box you're using.
8. We'll send you a shipping label. Apply the box and hand to the carrier. We might us UPS, Fedex, or USPS, depending on your location.

Email us with any questions at info@cgco.co.

Because one size doesn’t fit all. We offer reusable glass and plastic bottles, refill pouches, paperboard cartons, and refill boxes so you can reduce waste in a way that works for your space and routine. All of our packaging is recyclable, refillable, or part of a closed-loop system—so nothing has to go to the landfill.

Our Refill Boxes are the most sustainable. Each one holds the equivalent of 10 or more bottles and uses 86% less plastic. You can send the liners back to us to be sanitized and reused—creating a truly zero-waste system. If you’re just getting started, our refill pouches are also great low-waste, recyclable option.

You don't need special bottles to use our products. Use any bottle you have at home or one of ours.

We get it—buying something new online can be tricky. That’s why we offer a 30-day return policy. If you don’t love it, just return it to us for a refund.

To maintain free shipping option, we can't cover the cost of return shipping unless there is a problem with the product.

We use high-quality, plant-based ingredients, 100% pure essential oils instead of synthetic fragrance, and sustainable packaging that costs more to produce—but does far less harm. Plus, our concentrated formulas last longer, do not contain extra water or fillers, and help you cut down on plastic, shipping, and waste.

We get the skepticism. That’s why we’ve built a system that goes beyond recycling. Our formulas are 100% readily biodegradable, meaning they break down quickly and completely before hitting natural waterways. Our packaging is designed for reuse and refill, and our Refill Box liners can be returned and used again, eliminating the need for single-use plastic. This is about more than just products—it’s about rethinking consumption.

Orders over $75 ship free within the lower U.S 48. For smaller or international orders, we offer low-cost shipping options.

Most orders ship within 1–2 business days and arrive within 3–7 days.

Need it faster? Expedited shipping is available at checkout.