Soy wax is best for container candles and tealights, but it's also popular for making wax melts and tarts. Soy wax candles have many advantages: an extended burn time, no unsightly black soot, and a reputation as a desirable, naturally-derived product. It's no surprise that soy candles make up more than half of the candles on the market today. Advance 1. Renewable and natural resources without any petrochemical ingredients, harmless to human beings. 2. Production cast is lower than other kinds of waxes. 3. For making candles ,soy wax has linger buming time. 4. Soft feature makes it especially suitable for container candles; Good ability of demoulding, dye, and no cracks,good adhesion, no black smokes. 5. Biodegradable feature is good for environmental protection.