We have listened to you, our customer, and have increased the strength of our very popular Echinacea Purpurea 1000mg to a potent 3500mg (equivalent to 3500mg Echinacea Purpurea whole herb). We even went a step further and added 200mg of the ever popular Vitamin C. The result? Super immune boosting power in a single one-a-day tablet. This quality pr ... Details from Healthy Direct