All hair is made of the protein keratin.

所有毛发都由角构成。

Keratin is a protein produced by your hair follicles.

角毛囊分泌的一质。

Increased keratin production is another one.

另一个角增多。

Poor sleep can lower your body's ability to produce keratin, which is essential for healthy hair.

睡眠不足会降低你的身体产生角的能力，而角对头发健康至关重要。

Many beauty products include honey, beeswax and keratin which is the protein found in animal cells.

许多美容产品包括蜂蜜，蜂蜡和角都如此，角在动物细胞中发现的质。

Hair is made of keratin, the same protein that forms your fingernails… with a few extra ingredients.

头发由角构成的，角也构成指甲的质… 再含有一些额外的成分。

Some whales build up waxes, along with lipids and keratin protein into what's called earplugs.

有的鲸会产生鲸蜡、油脂和角，组成被称为“耳塞”的东西。

The scales are made of keratin, which is the same ingredient that's in our nails.

这鳞片由角组成, 和我们的指甲相同的成分。

The scales are made of keratin, the same stuff as human hair and fingernails.

鳞片由角组成的，和人类的头发和指甲一样的东西。

But us humans only have a very thin layer of keratin on our fingers and toes.

但我们人类的手指和脚趾上只有很薄的一层角。

It can also break down skin cells and keratin to help unclog the pores.

它还可以分解皮肤细胞和角以保证毛孔畅通。

When these cells move upwards, they're filled with a hardened protein called keratin.

细胞在向上移动过程中，会被填充一硬化的质，叫做角。

But Bajadasaurus spine's made of the same keratin material as our horned animals of today.

但巴雅达龙的脊椎和我们今天的角化动物由同样的角材料制成的。

Most of these reptiles have thick scales covered in keratin — the same material that makes up nails and claws.

大部分爬行动物有厚实的鳞，鳞上覆盖着角——角也组成指甲和爪子的相同物质。

These large protective scales are made of keratin, the same thing human nails and hair are made from.

这些巨大的保护鳞由角制成的，成分就像人类的指甲和头发。

They're made of a material called keratin, the same stuff that your hair and nails are made of.

它们由一叫做角的材料组成的，与你的头发和指甲组成成分相同。

Horse hooves are made of lots of thick layers of keratin put together that make them strong.

马蹄由很多厚厚的角层拼接而成的，这使得它们非常坚固。

The rattle consists of hollow, interlocked segments made of keratin, the same substance that makes our nails and hair.

响环由角制成的中空部分交错组成，与我们的指甲和头发一样的物质。

As they're pushed, the skin cells change into a protein called keratin that flattens and hardens into a nail.

当它们被推出去时，皮肤细胞会变成一叫做角的质，这质会变平变硬成为指甲。

Those scales are made out of the same hard protein, called keratin, as the scales of pangolins and other animals.

这些鳞片由同样的硬组成的，叫做角，就像穿山甲和其他动物的鳞片一样。