The dorsal (upper) surface of the bullfrog has an olive-green basal color, either plain or with a mottling and banding of grayish-brown. The ventral (under) surface is off-white blotched with yellow or gray. There is often a marked contrast in color between the green upper lip and the pale lower lip.
You can get the most Vitamin C from citrus fruits, red and green peppers, cauliflower and tomato. Vitamins B2, B5 and B12 are all essential for healthy skin and promoting skin cell growth. Another B Vitamin which is vital for hair and nail health is biotin.
Dr. Richard Scher, a dermatologist who is widely known for his expertise on nail care and disorders, argues that it isn't totally clear what role biotin plays. However, he believes taking the vitamin does improve the keratin infrastructure (a basic protein that makes up hair, skin and nails). Biotin deficiency is rare and low levels may result in brittle nails and hair loss, explains Dr. Stuart.