First of all, if someone needs this supplement for joint problems, they should keep in mind that there are many factors that play a role in whether they will see any improvement or not, such as the type of disease, age, weight, and many others that only a doctor could explain better. I will share the experience I had with my mother. She was in a lot of pain in her knees, she couldn't get up, she couldn't bend them easily, and in general, she had to limit her activities. She went to the hospital and to a private doctor. To the latter, she presented the X-rays, and he (the private doctor) told her what they told her at the hospital, that is, she is one step away from surgery. She had hyaluronic injections at the private doctor's office costing about 200 euros. The doctor told her that they last a maximum of 6 months but perhaps even less (depending on the person). She saw improvement for 4 days. Then it was the same again. Then I suggested (based on the comments) this supplement. After the first two weeks, she started to see improvement (one pill a day every morning). However, at one point, a friend of mine who is a doctor drew my attention regarding the metabolism of the product (liver). My mother got scared and stopped it for two weeks, and the pain started again. Eventually, at some point, I gave the accompanying document that comes in the package to my doctor friend, and he told me that there doesn't seem to be anything dangerous for the liver. So my mother started taking the supplement again, and after about three weeks this time, she returned to her previous condition. Today, after a year of taking the supplement, her knee condition is stable (she hasn't healed, of course, because you can't find a cure with these supplements - they just help) and I never heard her groan again when she gets up from the couch. She takes her walks but only to a certain extent. After a certain point, her knees start to hurt again slowly. We said it doesn't heal but helps. At least for my mother. Additionally, I would like to mention the following. The supplement contains vitamin C. In recent blood tests, they found my mother's hematocrit to be significantly higher than it has always been. She was surprised and told me that it has never been this elevated in her entire life. I assume this is due to the daily intake (through the supplement) of vitamin C, allowing my mother to absorb larger amounts of iron even from plant foods. ALWAYS, however, keep in mind that you should consult a specialized doctor before doing anything for yourself or for the people you love. I simply shared my experience. I hope I helped you.