Trisodium Salt: What It Is and Why We Use It to Boost Cleaning Performance

What Is Trisodium Salt and How It Works

Trisodium salt, or trisodium citrate, is a multifunctional ingredient used to improve cleaning performance in a few key ways. At its core, it acts as a chelator, pH buffer, and water softener.

That sounds technical, so let’s break it down.

Hard water contains metal ions like calcium and magnesium that interfere with cleaning. Trisodium salt binds to those metal ions before they can cause trouble. By tying them up, it prevents them from reacting with surfactants and enzymes, which allows the formula to clean more effectively.

It also helps fine-tune the alkalinity of a product. Many enzymes perform best within a specific pH range, and trisodium salt helps keep the formula in that sweet spot. The result is better, more consistent performance from wash to wash.

In short, trisodium salt doesn’t do the cleaning itself; it clears the path so other ingredients can do their jobs properly.

Is Trisodium Salt Safe?

Trisodium citrate carries an EWG rating of 1, which reflects the lowest level of concern for human health. It’s widely recognized as safe and is even approved for food use.

In fact, trisodium citrate shows up outside of cleaning entirely. It’s the “citrate” you’ll find in sports drinks, where it helps balance acidity and improve flavor. That long history of use matters to us.

Especially at the concentrations used in Truly Free Home products, trisodium salt is considered gentle and low-risk. It performs an important technical role without introducing unnecessary irritation or toxicity.

Why We Chose Trisodium Salt & the Truly Free Home Products That Rely on This Ingredient

There are a few reasons trisodium salt earned its spot in our formulas. First, it’s recognized by regulators as a preferred alternative to phosphates in detergents. Phosphates can contribute to water pollution and algae overgrowth, so choosing an effective alternative is a meaningful environmental decision.

It also supports performance without forcing us to rely on harsher chemicals. By softening water and boosting surfactant efficiency, trisodium salt helps deliver reliable results even in challenging wash conditions.

Finally, its origin aligns with our standards. Trisodium citrate is made by fermenting sugars to produce citric acid, which is then neutralized with sodium hydroxide. The process is well understood, tightly controlled, and widely used in both food and household products.

You’ll find trisodium salt in the following Truly Free Home products:

• Softening Rinse – Signature Scent: Helps soften fabrics and improve rinse performance without waxy buildup.
• Wrinkle & Static Releaser: Supports balanced fabric care by improving how the formula interacts with minerals left behind by hard water.

In these products, trisodium salt works to support softness, performance, and consistency.

The Transparent Takeaway

We stand by trisodium salt as a core ingredient because it softens water, supports enzymes, boosts surfactants, and keeps formulas balanced—all while maintaining an excellent safety profile. 

At Truly Free Home, we choose ingredients that have high marks for both performance and safety. Trisodium salt meets those expectations and helps our laundry formulas work smarter without negatively impacting the health of your home or the environment.

Knowing the science behind ingredients in cleaning products is the key to a non-toxic laundry routine. Pair our Softening Rinse and Wrinkle & Static Releaser with our step-by-step Stain Removal Guide—it’s the ultimate playbook to ensure your laundry comes out spotless, soft, and static-free every time.