n = 9 | Water | Lavender | Vetiver | Spikenard | Roman Chamomile |
60% - 9 min | 56% (5/9) | 67% (6/9) | 56% (5/9) | 89% (8/9) | 56% (5/9) |
75% - 11 min | 33% (3/9) | 56% (5/9) | 44% (4/9) | 78% (7/9) | 44% (4/9) |