Contain synthetic fragrance, phthalates, or parabens
Contain dyes, brighteners, or optical whiteners
Contain SLS, SLES, or formaldehyde donors
Need an aerosol propellant — the spray is mechanical
Smell like pine, lemon, lavender, or bleach
Promise to be a kitchen degreaser or a bathroom scrubber. Use the right tool.
The Formula
Six ingredients. Nothing hiding.
Every component, what it does, why it's in there.
01 · Surfactant
Decyl Glucoside
A plant-based surfactant from coconut and sugar. Cleans gently. Biodegradable. The mildest workhorse in the formula library.
02 · Solvent
Caprylyl/Capryl Glucoside
Plant-derived co-surfactant. Lifts dust and oils without leaving residue. Food-contact safe.
03 · Chelator
Sodium Citrate
Softens hard water and prevents mineral spots. Same compound that makes citrus taste tart. EWG-rated 1.
04 · Preservative
Benzisothiazolinone (<0.05%)
Used at trace levels to keep the formula stable for 24+ months. Disclosed in full, not buried.
05 · Scent
Custom Fragrance Blend
Essential oils plus IFRA-compliant fragrance oils. No phthalates. We don't pretend it's 100% essential oils, but we do tell you exactly what's in it.
06 · Base
Purified Water
~92% of the bottle. Which is why we'd rather ship you the concentrate and let you add the water yourself.
Want the full INCI sheet, MSDS, or pet-safety testing data? hello@thetheory.co
Theory vs. The Cleaning Aisle
Why we built this in the first place.
The cleaning aisle hasn't moved in twenty years. Here's the gap.
THEORY.
Method
Mrs. Meyer's
Branch Basics
Multi-surface cleaning power
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Scent built for adults, not nostalgia
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No synthetic fragrance or phthalates
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Plant-based formula
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Refill concentrate makes 10+ bottles
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Subscription with 20% off
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Full ingredient disclosure
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Designed for the home you live in
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How It Works
Three steps. No surprises.
Pump and spray. No propellant. No mixing. No mess.
01
Spray
Pump the trigger for a fine, even mist. Hold 8–10 inches from the surface for the best coverage.
02
Wipe
Clean cloth or paper towel. No need to wait — wipe in one direction for a streak-free finish.
03
Refill
When the bottle is empty, pour ~1.6 oz from the 16 oz Refill Concentrate into the bottle and fill with tap water. Ten refills per concentrate. Less plastic shipped.
Reviews
What people are saying.
A few selected from the first 312.
★★★★★
The only spray I keep on the counter.
I used to have four different cleaning sprays. Now I have this one. It does 90% of what the others did, and I don't dread reaching for it.
Aaron L. · Denver, CO ✓ Verified
★★★★★
My bookshelves smell like a library now.
Picked up Oak Moss + Vetiver for general dusting. Now my apartment smells like a study in an old house. Best purchase of the year.
Nicholas P. · Brooklyn, NY ✓ Verified
★★★★★
Stops being ashamed of cleaning products.
I leave this bottle on the counter on purpose. It's the first cleaner I've owned that doesn't look like it belongs in a supply closet.
Daniel R. · Los Angeles, CA ✓ Verified
★★★★★
Worth the price.
Subscription is the move. Concentrate refills are easy. The Bay Rum + Clove smell is unreal — house smells like a barbershop, in the best way.
Patrick W. · Austin, TX ✓ Verified
Reviews shown are representative pre-launch testimonials and product feedback. Full review corpus available on request.
Quartz, granite, sealed wood, painted walls, glass, ceramic, tile, stainless steel, laminate, plastic. Avoid unsealed natural stone (marble, limestone, travertine), unfinished wood, and leather. Spot-test in an inconspicuous area when in doubt.
Multi-Surface is a slightly milder formula tuned for everyday wipe-downs on a wider range of surfaces. Kitchen Cleaner (No. 04) is engineered with more grease-cutting power for hot zones like stovetops and range hoods. If you only buy one, get the Kitchen Cleaner and use it everywhere. If you buy two, get this one for the rest of the house.
The 16 oz spray bottle is yours to keep. When you need more, order the 16 oz Refill Concentrate ($29.95, or $23.95 on subscription) — a 10:1 concentrate that makes 10 full spray bottles. Add roughly 1.6 oz to the empty spray bottle, fill the rest with tap water, you've got a fresh bottle. One spray bottle, ten lives per refill, dramatically less plastic shipped.
Yes. All ingredients are EWG 1–2 rated. Like any cleaner, we recommend keeping it stored above counter level and wiping surfaces with a damp cloth before food prep. The scent is fragrance-blend based — if anyone in the home is highly fragrance-sensitive, start with one scent before committing.
About 450 sprays per 16 oz bottle. For typical household use across the kitchen, bathroom, and living areas, that's 8–10 weeks. Subscription default ships every 60 days; adjust from your account anytime.
30 days, full refund, no questions. If the scent isn't for you, keep the bottle. We'd rather build a customer than win an argument.
