Harpagophytum is a plant native to South Africa used for the good function of joints, its roots are rich in harpagosides, the benefits of which for joint comfort have been the subject of numerous scientific studies. Harpagophytum helps to maintain flexible joints and tendons and good mobility.

Two capsules of Neoflex provide 100 mg of Iridoforce per day, containing 10 mg of harpagosides.