Scented Candles: Are They Causing More Harm Than Good?
The gentle flickering glow from a candle flame creates a warm, peaceful ambience that helps relax and calm our minds while adding a touch of luxury to our evenings. Candles are a favourite gift and home sanctuary ritual year-round—but did you know your favourite scented candle could be doing your indoor air quality more harm than good?
We have all become accustomed to strong artificial scents over the past few years. Heavily perfumed candles and synthetic home fragrances are all around us, whether we like it or not. The problem is that over time, we can become sensitised to overpowering synthetic fragrances, which often trigger headaches, sinus irritation, and respiratory sensitivity.
When we fill our homes with strong artificial scents, we aren’t just affecting our own breathing space—we are also imposing that synthetic fragrance onto family members, guests, and pets who may be sensitive to chemical scents.
Most Scented Candles Contain Synthetic Fragrances
Did you know that over 95% of scented candles on the market are fragranced with synthetic chemicals? Even expensive, luxury-branded candles named after your favourite flower, fruit, or coastal landscape almost always have their fragrance manufactured in a laboratory from synthetic aroma chemicals.
Label wording can be deceiving. If a candle label says “natural essential oil blend” or “infused with essential oils,” it often contains only a tiny fraction of essential oil while the main bulk of the scent is still synthetic. Furthermore, “fragrance oils” are not natural—they are lab-created synthetic compounds.
Even when a candle scent sounds completely natural, biology tells a different story. Popular fragrances such as French Pear, Raspberry, Champagne, Peony, or Chocolate are entirely synthetic. Other than citrus peel (which can be cold-pressed), it is physically impossible to extract pure essential oil from fleshy fruits. Unless a brand explicitly guarantees that their candles are scented exclusively with 100% pure essential oils, you can be certain synthetic fragrance oils are in the jar.
Why Avoid Synthetic Fragrance Oils?
Synthetic fragrances are engineered in laboratories—frequently derived from petrochemicals—to mimic the smell of food, flowers, and nature at a fraction of the cost of real botanical extracts. Companies choose synthetic fragrances because they are cheap to produce, offer endless artificial scent combinations, and contain chemical fixatives that force the scent to cling to rooms for days.
However, growing research around indoor air quality highlights why synthetic fragrances and phthalates (chemical solvents and fixatives commonly used to make artificial scents last longer) are best kept out of our living spaces:
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Indoor Air Sensitivity: Burning synthetic fragrance oils releases volatile organic compounds (VOCs) that frequently trigger migraines, headaches, and airway irritation.
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Hormone-Disrupting Fixatives: Phthalates and synthetic musks have come under increasing scientific scrutiny as potential endocrine disruptors.
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The “Soy Wax” Loophole: While many candle companies have moved away from petroleum-based paraffin wax in favour of soy wax, the vast majority still pour synthetic petrochemical fragrances right into that natural wax—defeating the purpose of choosing a clean-burning candle.
What Makes 100% Pure Essential Oil Candles Different?
Pure essential oils are extracted directly from the leaves, flowers, peel, bark, and resins of living plants using steam distillation or cold-pressing techniques. They are the authentic aromatic essence of the plant itself.
Formulating essential oil candles in NZ takes far more botanical expertise than simply pouring essential oil into melted wax:
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Safety & Aromatherapy Integrity: Just because an oil is natural does not automatically mean it behaves safely when heated. Extensive formulation research is required to select plant oils that remain clean, gentle, and beneficial when burned.
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Flashpoints & Scent Throw: Every pure essential oil has a unique molecular weight and flashpoint, which governs both its cold throw (how the unlit candle smells) and its hot throw (how the aroma diffuses from the melted wax pool). Balancing top, heart, and base notes in a natural coconut and soy wax base requires meticulous testing so the delicate plant volatiles aren’t destroyed by the flame.
Keep the Scent Subtle and Keep It Natural
Experiencing a thoughtfully formulated essential oil candle is a true lightbulb moment. Once you get used to breathing pure plant aromatics, synthetic candles immediately smell artificial and heavy by comparison.
When we light a candle, the goal should be a subtle, restorative sanctuary in our immediate living space—around the coffee table, bedside, or bath—rather than an overpowering cloud of artificial perfume that clings to furniture and clothing across the entire house.
As more New Zealanders look closely at the ingredients they bring into their homes and onto their skin, choosing candles scented strictly with 100% pure essential oils simply makes good sense.
Introducing Our Limited-Edition Return: Citrus & Spice
Three years ago, we stepped away from pouring candles to focus entirely on our award-winning natural skincare formulations. We promised ourselves we would only bring a candle back to the Scenturie collection if we could craft a botanical blend so pure, uplifting, and transportive that it stopped us in our tracks.
Hand-poured in small batches in our Auckland studio, our Citrus & Spice Luxury Essential Oil Candle pairs the bright optimism of sun-warmed citrus with comforting, grounding spice—crafted with zero synthetic fragrance, zero paraffin, and zero chemical fixatives.
Formulated with a creamy, clean-burning plant-derived coconut wax and soy wax base and an unbleached cotton wick, it layers four pure therapeutic-grade plant oils:
Top Notes — Cold-Pressed Sweet Orange & Mandarin Peel: Bright, juicy, sun-ripened citrus that immediately uplifts the mood and refreshes your living space.
Heart Note — Steam-Distilled Cinnamon Leaf: Soft, earthy, warming spice that brings cosy comfort to your home.
Base Note — Pure Frankincense Resin: Quietly woody, meditative, and grounding for a peaceful evening sanctuary.
Poured into a sleek, hand-finished glossy black glass vessel with a sustainable rubberwood lid (designed to be washed out with warm soapy water and endlessly repurposed as a bathroom storage jar or mini indoor plant pot once its 40+ hour burn time is complete), it is available unboxed for low-waste everyday living or presented in our signature matte black gift box with ribbon and gift tag.
Explore our Citrus & Spice 100% Pure Essential Oil Candle NZ here →
