I purchased the 500 mg tincture to start. I make CBD but I use a different process that does not extract like the CO2 method The CO2 method is the best and you have to be careful when choosing CBD. Make sure that its organic NO GMO and grown in the USA I love how clear it is although it does have a little bit of cloudiness but this is normal. I have been using CBD to relieve anxiety I am agoraphobic and part of that is severe panic attacks. With my first 1 ML dose as soon as it came in the mail today I was starting to relax. I am only guessing but I will probably be taking 1 ML twice per day since this is the 500mg bottle once when I get up and once before bed so this bottle will not last me a month. If it works as well as expected especially after the first dose this morning then I will probably move up to the 1000 mg which will last me the month. One other thing you may have already read this information but this CBD has 0 THC. Thats important for those who work in professions that can not risk having high THC levels no pun intended.What makes me so confident in this product is how fast it worked. 1 ML under the tongue is the best way in my opinion to get the CBD oil to act quickly. This product gets great reviews for pain as well. Fortunately I dont suffer pain just anxiety and panic attacks. Thank you Medterra PS. I was not paid for this review LOL. I paid full price for this product and happy to do it.If Im able I will update this review if needed when I finish this bottle. Or leave another when I get the 1000 mg.