The Only Silk & Wool Detergent That's Both EWG Verified and EPA Safer Choice Certified

Here's what that means: an independent watchdog (EWG) and the U.S. EPA have each separately verified this formula's ingredients as safe for your family and for the environment. Most detergents don't have either badge. This one has both.

Your favorite merino wool sweater. That luxurious silk pillowcase. The cozy cashmere throw you curl up with on the couch. These are investment pieces, made to last, and they can all be laundered right at home if you use the right detergent.

Regular detergent will ruin them. Even "gentle" formulas often contain enzymes, which work by breaking down protein. And silk, wool, and cashmere are protein. Every wash slowly weakens the fiber, whether the label says gentle or not.

So how do you protect your fine fabrics without settling for a wash that doesn't actually clean? That's exactly why we made this detergent. Put simply: if a detergent's label doesn't say enzyme-free, assume it's slowly breaking down your silk and wool, one wash at a time.

A Gentle Clean That Doesn't Compromise

Silk, wool, and cashmere can be machine-washed at home without dry cleaning, but not with detergents built for cotton and polyester. Enzyme cleaners are engineered to eat away at protein-based stains, which means they eat away at protein-based fabric too, fiber by fiber, wash by wash.

Our Silk and Wool detergent skips the enzymes entirely. It's a concentrated, pH-neutral, plant-based liquid that lifts dirt and odor while leaving the fiber structure intact. It's safe for any water temperature, standard or HE machines, or hand washing.

Enzyme-Free Formula: Gentle on protein-based fabrics like silk and wool. No enzyme damage. Ever.

In other words: this formula was built around what silk and wool actually need, not a regular detergent with the harsh stuff diluted.

What's In It and What Isn't

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  Naturally Derived Ingredients: A short, plant-based ingredient list: Formulated Without enzymes, SLS, optical brighteners, isothiazolinones, lanolin, or ethanolamines, so nothing in the bottle works against your skin or your fabric.
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  Built for Luxury Fabric: Safe for washable silk clothing and bedding, lingerie, wool and cashmere, down, furs, and other natural fibers. Restores cleanliness while maintaining the quality and beauty of fine fabric.
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  Independently Certified Hypoallergenic: Lab-tested and certified non-irritating, with no fragrance or harsh chemicals to trigger a reaction.
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  Dermatologist- and Pediatrician-Tested: Safe enough for baby clothing and bedding, gentle enough for your finest garments.
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  Concentrated and Biodegradable: Less water, less plastic, and safe for greywater and septic systems.

What that means for you: every claim here is independently verified, not self-declared. Most "gentle" detergents on the shelf can't say that.

So How Do You Know a "Delicate Wash" Is Actually Safe?

Picture pulling a $200 cashmere sweater out of the wash: still soft, still holding its shape, not stretched or matted because a detergent that called itself "gentle" wasn't. That's the difference certifications are supposed to guarantee, and most brands don't have them to show.

Here's how we compare to two other well-known delicate-wash brands:

*Woolite's pH and country of manufacture aren't publicly disclosed.

†"Unscented" and "fragrance-free" aren't the same thing. Unscented typically means no scent was added on top of the base formula. It can still contain fragrance or masking compounds to neutralize the product's natural odor. Woolite's unscented SKU still lists Parfum, Eugenol, Hexyl Salicylate, and Isoeugenol on its ingredient panel. Heritage Park's Fragrance Free version contains no fragrance ingredients of any kind, masking or otherwise.

‡As of this writing, The Laundress Delicate Wash does not appear in EWG's Guide to Healthy Cleaning database. This is notable, since most major detergent brands do appear there regardless of how they score. Separately, The Laundress recalled its products in December 2022 due to bacterial contamination and relaunched a fully reformulated Delicate Wash in July 2023.

What sets Heritage Park apart: it's the only laundry detergent, not just in this comparison but on the market, that holds both EWG Verified and EPA Safer Choice certification at the same time. Which means you don't have to take any brand's word for it, or dig through an ingredient list yourself, to know what's actually safe for your clothes.

Fragrance-Free, Hypoallergenic, and Built for Sensitive Skin

If you or your family are sensitive to fragrance or prone to allergies, this fragrance-free version is the safer choice. In independent clinical testing (a RIPT test, the standard industry test for whether something irritates skin), it produced zero adverse skin reactions, not "low irritation," zero, and it's dermatologist- and pediatrician-approved, safe enough for infant clothing and linens, not just adult delicates.

Meaning: this isn't just a fragrance-free product that happens to avoid a few irritants. It's clinically proven not to cause a reaction at all.

View the Safety Data Sheet or the independent hypoallergenic lab report, or just reach out with any question about what's in the bottle.

Why Our Luxury Silk and Wool Laundry Detergent is Your Best Choice

You have plenty of options for washing silk and wool: pods, sheets, powders, other "wool wash" formulas. Most of them work against delicate fabric in one way or another. Pods can't be adjusted for a small, delicate load, so you often end up overdosing the fabric with concentrated cleaner. Powders can leave residue trapped in fine fibers. Our concentrated liquid dissolves completely and lets you measure exactly what a load needs, so there's nothing extra left behind on your silk or wool.

We make it in small batches for quality control, in a formula concentrated enough to mean less water shipped and less plastic used, which for you means a smaller bottle, a refill pouch instead of a full repurchase, and less waste piling up in your laundry room.

What Does EWG-Verified Mean?

The EWG Verified badge is a certification awarded by the Environmental Working Group (EWG) to products that meet their strictest standards for health and transparency. It indicates that our products are free of chemicals of concern and meet their high standards for ingredient disclosure and formulation. EWG-Verified is awarded to only the top 2.5 percent of products.

What Does EPA Safer Choice Certified Mean?

The EPA Safer Choice label means that every ingredient in this product, regardless of its concentration, has been reviewed against the U.S. Environmental Protection Agency's stringent standards for human health and environmental safety. Safer Choice-certified products must also meet requirements for cleaning performance, ingredient disclosure, pH, and packaging. This helps you choose an effective detergent made with safer chemical ingredients for your family and the environment.

Which is why these aren't just marketing badges: they're two of the hardest certifications to earn in this category, and Heritage Park is the only laundry detergent on the market that holds both, so instead of researching ingredient safety yourself, you can trust the badge.

"We wouldn't sell a product we wouldn't use on our own family's laundry. That's why we didn't stop at earning one certification: we earned both EWG Verified and EPA Safer Choice." 
— Tom Ceconi, CEO, Heritage Park Laundry Essentials

Ready to Stop Guessing What's Safe for Your Silk, Wool and Delicates?

The bottom line is this: Heritage Park Silk and Wool is the only laundry detergent that's both EWG Verified and EPA Safer Choice Certified, backed by clinical testing that found zero adverse skin reactions, and lab testing that shows it cleans as well as leading sensitive-skin brands. Safe enough for a newborn's blanket, gentle enough for your favorite dress, and proven enough that you don't have to take our word for it.

Ingredients