I should add that my husband had been diagnosed for only 6 months when he began taking RC. I understand it works better on new patients than on those who've had PD for more than 3 years.
I ordered Restore Gold for my husband. At first he refused to take it, because you have to take 16 pills a day. Finally he did take it. By the time the first 3 months supply had finished, his hand and mouth tremors had stopped, the doctor noticed that his posture and gait had improved, his cramped writing had gone back to normal, and his speaking voice had improved. Full disclosure, he faithfully does his BIG exercises and takes Azelact also. He has been taking Restore Gold for 18 months now, and is still having good results. His tremors return when he is very tired, but other than that, his Parkinson's has not only not advanced, but has regressed. We love it. His doctor says to keep using it.