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.
Biotin Hair & Nail Growth Benefits. Biotin may have an important role in the growth and maintenance of your hair and nails. If you suffer from a Biotin deficiency, you will typically experience hair loss and brittle nails, and taking supplements of this vitamin may help to halt this process. In many cases, taking a Biotin supplement may even help you to stimulate new hair and nail growth.