Baleen whale
Whale teeth vary in shape and size depending on the species. For example, toothed whales, like sperm whales and orcas, have conical teeth that can range from a few inches to over a foot long. In contrast, baleen whales do not have teeth; instead, they possess baleen plates made of keratin that filter food from the water. Overall, whale teeth are adapted to their feeding habits and the type of prey they consume.
keratin
Sharp, cone-shaped teeth.
killer whale
Hair is primarily made of a protein called keratin.
toothed whales or/ and baleen whales
Its horn is made up of a material called Keratin, our nails are also made up of this substance only.
Hair and fingernails are made up of a type protein called keratin. This structural element is also a part of the make up of the outer layer of human skin.
The Blue Whale is a baleen whale, in place of teeth it has rows of a plastic type material like fibre/glass rods strung together like a brushwood fence. The whale swims through shoals of Krill/Plankton and takes in large volumes of water and suirts it through the baleen filtering out its food. The water is ejected and the krill swalled. A piece of trivia for you. The old whale bone corsets were not made of bone, they were made from baleen
The horns of a rhinoceros are made of keratin, the same type of protein that makes up hair and fingernails.
The body is full of minerals. Some of them just show on the outside. Fingernails are made up of keratin. Keratin is a type of protein the body no longer needs, but cannot be broken down.
It depends on your hair type & the temperature its treated with the keratin. I had kinky frizzy hair & the keratin home treatment made it pin straight and it will barely hold a curl. Talk to a stylist with experience in keratin before you do anything to your hair.