The recalled pills are sold in plastic bottles containing 30 capsules per bottle and bears UPC 8 97966 00200 7. The affected lot/code being recalled is 101408. The product was sold to distributors and retail stores nationwide and via internet sales. The company has discontinued distribution of Joyful Slim.
Consumers are advised by the FDA to not consume the product and return it immediately to the place of purchase for a full refund.
Any adverse reactions experienced with the use of this product may be reported to the FDA's MedWatch Safety Information and Adverse Event Reporting Program online (www.fda.gov/MedWatch/report.htm), or, by phone 1-800-332-1088.

Those are probably herbs that come from china and cause dangerous side effects.
I hope those who already started using the product did not have any bad effects. Read consumer product reviews before using any weight loss products.