Many harvest/spice candles use soy or soy-blend formulations and other plant-derived waxes. Listings commonly mention soy wax, soy wax blends, and broader plant- or vegetable-based wax blends (including combinations with cottonseed wax).
Some product descriptions explicitly state the candles are made with or infused with essential oils, while others do not mention essential oils in the available details. Presence of essential-oil claims varies by listing.
Fragrance strength varies: some listings and reviews describe a strong, room-filling scent throw, while others report a pleasant seasonal aroma that disperses without being overpowering.