Sharing my experience here, I’m 40years old, low AMH level and had 2 rounds of IVF. I believed the 6mths of supplement (DHEA, CoQ10, Vit D, Probiotics) that I took was a huge contributing factor to my successful IVF. Lifestyle is also important, e.g. limiting the use of single use plastic e.g. take away containers, eliminating PFAS, sufficient daily rest