Soy Wax vs Paraffin Wax: Which Candle Wax is Better?
If you've ever browsed a candle aisle or shopped online for scented candles, you’ve probably come across two major types of wax: soy and paraffin. Both are popular choices in the candle world, but they come with different qualities, benefits, and drawbacks. So, which is better for your home, your health, and the environment? Let’s break it down.
What Is Paraffin Wax?
Paraffin wax is a byproduct of petroleum refining. It’s been used in candle-making since the 19th century due to its affordability, excellent scent throw, and smooth finish.
Pros:
- Stronger scent throw – Paraffin holds and releases fragrance very well, making it a go-to for strongly scented candles.
- Cost-effective – It’s cheaper to produce, so paraffin candles are often more affordable.
- Wide availability – Paraffin is the most common wax used in commercial candles.
Cons:
- Derived from fossil fuels – Since it comes from petroleum, it’s not a renewable resource.
- More soot – Paraffin candles tend to produce more soot when burned, which can leave residue on walls and in the air.
- Health concerns – There’s debate about the potential for paraffin to release harmful chemicals when burned, though studies vary in conclusions.
What Is Soy Wax?
Soy wax is made from hydrogenated soybean oil, a renewable and biodegradable resource. It's a relatively newer option, first introduced in the 1990s as a more eco-friendly alternative.
Pros:
- Natural and renewable – Made from soybeans, it’s a plant-based option that supports sustainable agriculture.
- Cleaner burn – Produces less soot and smoke compared to paraffin.
- Longer burn time – Soy burns at a cooler temperature, which can make your candle last longer.
- Better for indoor air – Many people report fewer allergic reactions and headaches with soy-based candles.
Cons:
- Subtler scent – Soy doesn't hold fragrance as powerfully as paraffin, so the scent throw may be more gentle.
- More expensive – Soy wax tends to cost more than paraffin, reflecting its natural sourcing and processing.
- Frosting – Soy candles can develop a white, crystalline layer (called frosting), which is purely aesthetic but less polished-looking.
Which One Should You Choose?
It depends on what matters most to you.
For stronger fragrance and lower price: Paraffin wax might be your pick.
For a cleaner, more eco-friendly option: Soy wax is your best bet.
If you're looking to light candles in small spaces or have sensitivities to smoke or scents, soy may be a better option. If you're all about big fragrance and aren't as concerned about the environmental aspect, paraffin candles may satisfy your needs.
That said, many candle makers now blend waxes to get the best of both worlds. You’ll often find soy-paraffin blends or soy-coconut waxes designed to improve scent throw while keeping things cleaner and more sustainable.
At the end of the day, your choice between soy and paraffin wax comes down to personal preference, lifestyle, and priorities. Whether you're burning candles for ambiance, aromatherapy, or decor, knowing what goes into your candle helps you make a more informed and intentional choice.