Following on from the admin’s post about wax types, I thought it might be helpful to talk about additives in candle wax.
Most candle wax sold commercially is actually a formulated blend, even when it’s labelled as soy, coconut, or “natural”.
Manufacturers add ingredients to improve things like scent throw, hardness, burn quality, and stability.
Some common additives used in candle wax include:
Hardening additives
Stearic acid
Palm stearin
Carnauba wax
Candelilla wax
Rice bran wax
Binding and performance additives
Vybar (polymer fragrance binder)
Microcrystalline wax
Mono- and diglycerides
Fatty acids
Petroleum-derived additives
Paraffin
Microcrystalline wax
Mineral oil
Stability additives
UV inhibitors
Antioxidants
Dye stabilisers
Crystallisation modifiers (often used in soy to control frosting)
Because of this, two waxes both labelled “soy” or “coconut” can perform very differently depending on the additive system used.
It’s also why the term “all natural wax” can be a bit misleading if the wax contains petroleum additives or synthetic binders.
Personally I prefer starting with a pure coconut wax base and choosing any modifiers myself so I know exactly what is going into the candle.
There’s no single right way to make candles, but understanding what is actually in wax blends helps makers make more informed choices.