Sexual Health Passion Formula Herbal Supplement. Powerful South American Sexual Energizer. Traditional Brazilian Aphrodisiac. Full Spectrum Whole Bark Formula. Science-Backed Quality Since 1969. Catuaba Bark has been used for centuries by native South American tribes. Now, catuaba is gaining recognition around the world for its health benefits for men and women. These convenient capsules from Swanson contain a potent 465 mg of pure full spectrum catuaba bark to help promote sexual health.