Dencia Threatens Lawsuit Against American Actress LisaRaye

American singer, actress and fashion designer LisaRaye McCoy actress is at loggerhead with African Dencia over Lisa’s claim that “Whitenicious” cream causes skin cancer.

LisaRaye went on Big Tigger's radio show to promote her new movie "Skinned" ... a flick about a young black woman who bleaches her skin to appear whiter. During the interview, she threw shade on Cameroonian pop singer Dencia, who owns a skin care company called Whitenicious.

LisaRaye claimed Whitenicious causes skin cancer. She also claimed people who use the product are left with dark spots on their knuckles and elbows.

Dencia got her lawyer to fire off a demand for a retraction, claiming there is NO evidence Whitenicious causes cancer or creates dark spots on the body.

We reached out to LisaRaye's lawyer, to find out if she stands by her claims. So far, no word back.

By the way ... Dencia says she's living proof her product works.

 Dencia

TMZ