Essential Oils
Essential oils and “natural fragrance” are entirely different, and “natural fragrance” is actually, at best, semi-synthetic. “Natural fragrance” and “derived from natural ingredients” can mean a lot of different, unregulated things, but oftentimes specific compounds found in natural ingredients (like linalool in lavender and d-limonene in orange) are isolated. Those isolated compounds will then be combined into something that smells exactly like freshly cut grass or a vanilla cupcake. Basically, it’s made from components derived from natural ingredients, but is arguably not in itself natural.
Essential oils, on the other hand, are literally the essence of concentrated oil from the plant it is extracted from. There’s a natural aromatherapeutic benefit that comes with essential oils that doesn’t exist with “natural fragrance” because the natural synergy of the plants’ multitude of compounds is compromised and picked apart.