How It Works — Orange Guard
The science behind it

Nature working
the way nature does.

No synthetic chemicals. No nerve agents. No harsh residue. Just the natural oil found inside every orange peel.

The active ingredient

d-Limonene.
The oil inside every orange peel.

d-Limonene is a naturally occurring compound found in the rind of an orange. It's on the FDA's GRAS list (Generally Regarded As Safe) meaning it's food-grade. The same compound that gives a fresh orange its scent is the active ingredient in every bottle of Orange Guard.

Steam-distilled from orange peels — not synthesized in a lab. The most natural extraction process possible.
FDA GRAS listed — all ingredients are Generally Regarded As Safe for use in and around food.
FQPA exempt — legally cleared for use in kitchens, pantries, and food preparation areas.
100% water-based and biodegradable — fully breaks down after use. No harsh residue left behind.
5.8%
Active ingredient
d-Limonene
Orange peel extract
Steam-distilled · Food-grade
FDA GRAS listed · FQPA exempt
How it kills

Three steps.
Zero synthetic chemistry.

01
Contact kill
d-Limonene dissolves the waxy coating on an insect's exoskeleton the moment it makes contact. The protective layer breaks down instantly — fast, physical action, no nervous system disruption involved.
Kills on contact
02
Suffocation
With their exoskeleton compromised, d-Limonene clogs the spiracles — the tiny breathing pores insects use to take in oxygen. Without the ability to breathe, insects suffocate. No nerve agents. No synthetic toxins.
Physical mechanism
03
Weeks of repelling
After the initial kill, Orange Guard continues working as a residual repellent — the scent and chemistry keep insects from returning for weeks. Then it fully biodegrades, leaving no harsh residue behind.
Repels for weeks
What it controls

One formula.
A broad range of pests.

Home Pest Control
Indoor & outdoor insects
  • Ants (all common species)
  • Cockroaches & palmettos
  • Fleas
  • Silverfish
  • Hidden bugs & crawling insects
Can be sprayed directly into cracks, crevices, under cabinets, in pantries, and around pet food areas.
Fire Ant Control
Fire ant mounds
  • Red imported fire ants
  • Fire ant mounds & colonies
  • General outdoor ant infestations
Registered in 16 fire ant states. Saturate the mound until the queen is covered. Does not damage grass, plants, or the food chain.
Ornamental & Garden
Garden & plant pests
  • Aphids
  • Whiteflies
  • Mites & spider mites
  • Lace bugs & leafhoppers
  • Mealybugs & scale insects
OMRI certified for organic production. Attracts pollinators rather than harming them — unlike conventional pesticides.
How to use it

Application guide
for each product.

Home Pest Control
Ready to use
No dilution

Indoors: Spray from 8–12 inches directly onto ants, roaches, fleas, silverfish, and other insects. Saturate area until visibly wet. Use the stream setting for penetrating cracks and crevices. Spray in kitchens, pantries, and under cabinets. Wait 3 minutes, then wipe excess with a damp cloth.

Outdoors: Spray the perimeter of your home generously — doorways, window frames, cracks — anywhere an insect can enter. Saturate areas of trail or nests.

For fleas: Apply to pet bedding to control fleas. Keeps repelling for weeks.

Fire Ant Control
Dilute before use
Mix ratio 1 part OG : 3 parts water

Dilute one part Orange Guard with three parts water. Puncture the fire ant mound and pour the solution in, saturating completely until the queen is covered. Treat in the early morning or late evening when ants are less active.

Does not damage grass, surrounding plants, or beneficial insects. Registered in 16 fire ant states.

Ornamental & Garden
Concentrate — dilute before use
Standard mix 1 part OG : 6 parts water

Dilute one part Orange Guard with six parts water for standard garden use. For delicate plants, increase to 1:8 ratio. Spray directly onto affected plants, saturating leaves where pests are present.

OMRI certified for organic production. Attracts pollinators — won't harm bees or beneficial insects when used as directed.

General tips
All products

Reapplication: For best results, reapply every 4–6 weeks or after heavy rain for outdoor use. The fresh orange scent fades within a few hours but the repelling effect continues.

Around pets: May be used around pets when used as directed. Keep pets out of treated areas while the spray is still wet. Allow to fully dry before pets re-enter the space.

Storage: Store in a cool, dry place in the original container. Non-refillable container.

Why it's different

The certifications that
back up the promise.

EPA Registered
Registered by the Environmental Protection Agency for use around food, humans, and pets. The highest regulatory standard for a pesticide product.
Est. No. 061887-CA-001 · Reg. No. 61887-1
FDA GRAS Listed
All ingredients are on the FDA's Generally Regarded As Safe list — the same standard applied to food ingredients. Orange Guard is food-grade.
All ingredients listed
OMRI Certified
Listed by the Organic Materials Review Institute for use in certified organic production. Safe for organic gardens, vineyards, and farms.
Approved for organic use
FQPA Exempt
The active ingredient d-Limonene is exempt from Food Quality Protection Act tolerance requirements — meaning it can legally be used in kitchens and pantries.
Kitchen & pantry safe
Ready to try it

30 years of proof.
Ready for your home.

The same formula Tor invented in Carmel Valley. Still made in Marina, California. Still family-owned. Still the only all-natural pest control that's food-grade, OMRI certified, and trusted for over three decades.

Shop Orange Guard Our Story