Guajava - Guajava demonstrates antifungal, antibacterial, anti-inflammatory, laxative, and analgesic properties. It is used to treat herpes ulcers, ringworm, dermatitis, and urinary tract infections. Guajava is related to cassia and senna, and contains anthraquinones found in those other species as well.
Vitamins B, particularly biotin (vitamin B7) and B12 are important to keep healthy nails. If your nutrition lacks in vitamins B, nails will be dry and brittle. Vitamin C deficiency is associated to brittle nails and may cause infections of nail tissues.
Brittle nails are nails which split and break easily. Nails can be dry and brittle or soft and brittle. There are ways to fight brittle nails and get well on your way to good fingernail health. Brittle nails is a common problem. Brittle nails are caused by a few different factors. One commonly cited cause of brittle nails is frequent hand washing or water usage.