Blac Chyna stepped out last night, and showed off her brand new complexion - and she's extremely pale.

Folks all over Twitter are suggesting that the reality star is engaging in the controversial process of bleaching her skin.

Chyna attended yesterday's Luda Day celebrity basketball tournament - and she looked noticeably more pale.

Here are the images that are causing such a stir:

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Skin bleaching refers to the practice of using chemical substances in an attempt to lighten the skin or provide an even skin color by reducing the melanin concentration in the skin. 

Several chemicals have been shown to be effective in skin whitening, while some have proven to be toxic or have questionable safety profiles.

In a number of African countries between 25 and 80% of women regularly use skin whitening products. In Asia this number is around 40%.

And more than half of all skin bleach in the world, is sold in India.

Back in 2018, Blac Chyna went to Lagos, Nigeria, to promote a product she is launching: "X Blac Chyna Diamond Illuminating and Lightening Cream." It's from the cosmetics company Whitenicious, a skin care line that has been controversial since its launch in 2014.

The new cream comes in a crystal-adorned jar and sells for $250 for 100 grams — about 3.5 ounces. That's a far higher price than for other skin-lightening products found in small pharmacies and shops along streets. Promotional material for the cream, like the image shown above, creates an image of glamour to appeal to a high-end audience.

The company says the product "restores, illuminates, tightens, firms and moisturizes the face."

"There's an assumption that people who bleach their skin are irrational," says Shingi Mtero, a lecturer at Rhodes University who teaches a course on the politics of skin bleaching. But she does not believe that is the case: "Black women who bleach their skin believe that it will give them access and power. They think through their decision."

In post-colonial Africa, there is still a premium on light skin,