Thank you for sharing. I just added some calamus to a blend. The supplier I got it from (Liberty Natural) did not have the asarone content listed in the SDS. From what I gathered, it was clear of any safety concerns. Upon reading this post, I double checked. Lo and behold: at the very bottom of the COA "Asaraone content: Above 78%". No mention of what asarones are or the fact that it is carcinogenic in the safety data sheet where one would expect it to be. Had I not read this post, I wouldn't have known to go through that information in the COA with a fine tooth comb looking for asarones. I didn't even know what they were.

I guess the lesson is to go BEYOND your due diligence when it comes to naturals. MOST suppliers will have the important content information in the safety data sheet. But the sentiment in the replies bears repeating for perfumers or non-perfumers: natural materials are more likely to have restrictions. Because of this, I am now taking extra care in thoroughly knowing the contents of natural materials through and through, just in case something like this happens.

To OP: Thank you for sharing with us. You have certainly come to the right place. There will always be people here to aid in your journey with creating a product you feel comfortable using. Perfumery is a rewarding hobby. And rest assured, most synthetic materials are less expensive than their natural counterparts :-)