“I tried Study of Trees first and you could barely smell it. So I decided to try this one and confine it to a small room and you can still barely smell it unless you put your nose close to the volcanic rocks. Although the smells are really nice - when you sniff the bottle - I would not recommend it at all and wouldn't buy it again or anymore of the rocks. Need a much stronger scent or perhaps the rocks are the problem, or both...”
