If you share your home with a dog or cat, you’ve probably wondered whether the candle burning on your coffee table is doing them any harm.
I’ve wondered this too — not only as someone who shares a home with both a dog and a cat, but as someone who thinks about candle ingredients for a living. What we light in our homes matters, especially when those homes are shared with animals who experience the world so differently than we do.
The honest answer: candles aren’t automatically unsafe for pets, but the ingredients matter.
Here’s what to look for, what to avoid, and how to burn more thoughtfully.
Why pets are more sensitive
Dogs and cats can be more sensitive to airborne irritants than humans. Cats need especially thoughtful care because their livers lack certain enzymes needed to process many common fragrance compounds, making them more vulnerable to certain essential oils and chemicals.
Pets also spend more time at home than we do, often closer to the floor where soot and heavier airborne particles settle. And because they can’t tell us when something is bothering them, it helps to watch for cues: sneezing, watery eyes, coughing, leaving the room, or acting unusually quiet when a candle is burning.
Ingredients to be cautious about
Paraffin wax
Paraffin is petroleum-derived, and burning paraffin candles can contribute soot, particulate matter, and VOCs to indoor air — especially in small or poorly ventilated rooms.
Vague synthetic fragrance
Some mass-market candles use undisclosed fragrance blends that may contain phthalates or other additives. For homes with pets, cleaner, more transparent fragrance is a better choice.
Certain essential oils
Natural does not always mean safe for every animal. Concentrated essential oils can be irritating or toxic to pets, especially when diffused, applied topically, or ingested.
Common oils to use caution with include tea tree, pine, eucalyptus, peppermint, cinnamon, clove, and citrus oils. Cats are especially sensitive, so citrus-forward, minty, piney, eucalyptus-heavy, or strongly herbal scents deserve extra care.
Lead-core wicks
Lead-core wicks are banned or restricted in the U.S., but it’s still worth choosing candles from brands that clearly disclose their wick materials. Look for cotton, wood, or paper-core wicks with no lead or metal core.
What to look for instead
For a more pet-conscious candle, look for:
Plant-based wax
Coconut wax, soy wax, or beeswax instead of paraffin.
Clean, phthalate-free fragrance
Fragrance that is free from phthalates, parabens, sulfates, and unnecessary harsh additives.
Lead-free wicks
Cotton, wood, or paper-core wicks with no metal core.
Softer scent profiles
Especially for homes with cats, gentle woods, soft florals, vanilla, amber, musk, and fig tend to be lower-concern than sharp citrus, eucalyptus, pine, mint, or strong herbal blends.
Which Siblings candles are best for homes with pets?
All Siblings candles are made with all-natural coconut-soy wax, clean fragrance and essential oils free from phthalates, parabens, and sulfates, and lead-free wicks.
Some scents are especially well suited to homes with pets.
Best low-concern choices
No. 08 Peony
Soft florals, amber, sandalwood, cedar, and musk. No citrus, eucalyptus, pine, or mint notes.
No. 09 Fig
Creamy, woody, and gently green with coconut milk, fig, amber, sandalwood, and cedarwood.
Pistachio Milk
A warm gourmand with pistachio, almond, amber, musk, and vanilla bean. No citrus, eucalyptus, or mint notes.
Good with ventilation
No. 06 Sandalwood
Soft and grounding, but contains eucalyptus.
No. 01 Rose
Light and floral with a subtle bergamot top note.
No. 05 Lavender
Cozy and herbal, but includes eucalyptus and clove.
Use more caution around cats
These are best burned in larger, well-ventilated rooms, away from where your cat sleeps:
No. 02 Lemongrass
No. 03 Jasmine
No. 04 Balsam
No. 07 Grapefruit
Green Hus
Yuzu Bloom
How to burn candles more safely around pets
Ventilate the room.
A slightly open window or door helps keep the air moving.
Keep candles out of reach.
Curious cats and wagging tails are very real fire hazards.
Avoid long burns in small rooms.
Bedrooms and bathrooms have less air volume, so shorter burns are better.
Watch your pet’s behavior.
If your dog leaves the room or your cat seems unsettled, take the cue.
Be extra careful with flat-faced breeds.
Bulldogs, pugs, French bulldogs, Persians, and British Shorthairs can be more sensitive to airborne irritants.
The bottom line
Your home should smell wonderful. It should also be somewhere your animals breathe easy.
Choose candles made with cleaner ingredients, burn them with ventilation, and pay attention to how your pets respond. If you’re burning paraffin candles with vague fragrance blends every day, it may be worth making a swap.
Siblings candles are made with all-natural coconut and soy wax, clean fragrance and essential oils free from phthalates, parabens, and sulfates.
→ Shop clean candles
