@irenea8 I buy my HLA on Amazon, not always the same brand, depending on what is available. . I always buy the liposomal form for better effectiveness. I take one capsule (about 120-150 mg) in the morning. My lungs feel normal when I take it, and my Sp02 is 97-98, so I like that. I believe also my CT scan showed dramatic improvement over a one year period. I cannot say HLA is the reason behind the improvement (I had a 3 month antifungal treatment that was highly effective and I also ramped up my cardio during that time and did other things as well), but obviously it did not hurt. I also take several capsules of Pterostilbene, also on Amazon, it has many benefits but in particular it is antimicrobial. I don't know if those supplements can interfere with any prescribed medication (my only med is my Advair and my 3%saline), so please make sure to research interactions etc before embarking on that journey. Best wishes of great health!-