Blac Chyna’s touting of a skin lightening beauty product is just a cash grab because she allegedly doesn’t even use the stuff.

TMZ reports that despite her partnership with Whitenicious by Dencia to roll out her “Whitenicious X Blac Chyna Diamond Illuminating & Lightening Cream,” she’s never applied it to her own skin.

We’re told she was presented with a business opportunity and offered good money to promote the cream — which goes for $250 per Swarovski crystals-studded jar — so she said yes … simple as that.

It’s interesting, because while Chyna’s reps told us she’s been using Whitenicious dark spot corrector products for a few years to deal with her hyperpigmentation … they didn’t say she used the lightening cream.