I am a return customer and I am pretty pleased with Linden Botanicals! I was fortunate to find the Persister Desister Long-Haul Lyme Support last June when I had a pretty bad case of Lyme (confirmed by medical testing) I did take the antibodics but learned that they are not always effective due to the biofilm issue. I have had just about immediate response to a couple of emails with questions and I am very pleased with this company. I have just ordered the Cistus Incanus and will be taking it every day until early winter. This is due to the wonderful effect for me that I did not have any mosquito bites while taking it last summer! I am usually a mosquito magnet and I hate chemical sprays. I am not usually a review writer but this company is excellent in every way