Need to boost breast milk supply

You know I am breastfeeding mom exclusively for my first boy for three and half years. For my second baby boy who does latch on I do pump milk most of the time. I have low supply of breast milk and I am a week already on the Shaklee 3M trial pack. I love it, I see there is increase of milk supply. I ordered the Shaklee.

I am going to tell my friend who is expecting newborn soon. My friend told me that her milk supply only lasted for four to six month.

I think it is up to individual to see whether this product worked or not. Any breastfeeding mom there takes supplement?