Herbalife does have some products that are not recommended for pregnant or lactating women. These warnings are clearly stated on the nutrition labels of these specific products.
Herbalife as a leader in the science of nutrition offers the highest quality dietary supplements on the market today.
Herbalife has a department on the UCLA campus called the Cellular and Molecular research facility. This is where products are tested for effectiveness and safety.
Certainly if there were any connection between the menstrual cycle and Herbalife it would be known.
I researched comments and testimonials on the Web to see if there was any information available or negative side effects associated with the menstrual cycle and Herbalife. Mostly the comments were positive claiming that Herbalife products were a big help specifically the Shake Mix and the Tang Kuei Plus.
Herbalife has developed a supplement just for premenstrual and menstrual cycle problems called Tang Kuei Plus
Tang Kuei contains the chinese herb known as dong quai plus enhancing herbs. Dong Quai has been known to help regulate the female menstrual cycle.