My eyes have a lot of melanin, that's why they are dark brown.

我眼睛有很多黑色素，所以是深褐色。

They contained minerals that would result from the decay of melanin.

它们含有黑色素衰变後矿物。

The more melanin you have, the darker your skin.

有黑色素越多，皮肤越黑。

If they can't mature, they won't be able to produce melanin.

如果它们不能成熟，就不能产生黑色素。

The more melanin in your skin, the darker it looks.

皮肤中黑色素越多，看起来就越黑。

Some are yellow others are red and some contain the dark melanin pigment.

有些是黄色，有红色， 同时也有些有深深黑色素。人们以为。

All six of them have albinism – which is a genetic condition that affects the production of melanin – the pigment which gives colour to the skin, hair and eyes.

他们六个人都患有白化病，这是一种影响黑色素生成遗传病，黑色素是给予皮肤、头发和眼睛颜色色素。

The researchers say the gene called IRF4 is involved in regulating melanin the pigment being hair color as well as the color of the skin and eyes.

据研究人员表示，“IRF4”调控黑色素生长，且影响皮肤和眼睛颜色。

It also tends to have more of the brown-black melanin pigment than head hair, which is why the carpet doesn't always match the drapes.

它往往比头发含有更多棕黑色黑色素，这就是为什么地毯不一定总是与窗帘相配原因。

However, some stem cells fail to move to the correct position, resulting in insufficient melanin production and then white hair, according to Sun.

然而，根据孙说法，一些干细胞无法移动到正确位置，导致黑色素生成不足，然后出现白发。

This is a result of melanin in the dead skin cells reacting with oxygen creating a black color —it's not dirt.

这是死皮细胞中黑色素和氧起化学作用生成黑色点点结果——不是脏东西。

Eye color is also related to melanin.

眼睛颜色与黑色素有关。

Everyone's asking: " What's her secret? What's she hiding? Maybe she's born with it. Maybe it's melanin."

“她秘诀是什么？她在隐藏什么？也许她天生如此。也许是因为黑色素。”

Your body makes a dark pigmented molecule called melanin that absorbs UV light to protect your skin from damage.

身体会产生黑色素来保护皮肤。

In every color of eye, the back, most inside layer of the iris is densely packed with dark melanin.

在眼睛每一种颜色中虹膜最内层后部都充满了黑色素。

The melanin makes the color of the eyes?

黑色素决定了眼睛颜色？

But some of them happened to produce less melanin.

比如钙，铁，镁，磷酸盐，锌。

Thus, melanin production can be controlled by a few genes being turned on and off.

因此，黑色素产生可以由一些基因开启和关闭来控制。

Your hair's colour is determined by something called melanin, which is pigment.

头发颜色是由一种叫做黑色素色素决定。

UVA mainly causes tans, where your body releases a light-absorbing chemical called melanin to stop the UVA from doing too much damage to your skin cells.

UVA主要晒黑皮肤，引发使身体释放吸光化学物质，黑色素，以阻挡UVA过度伤害皮肤细胞。