Rihanna and Kylie Jenner fans are in a messy social media war over their makeup

The INSIDER Summary:

• Supporters of Rihanna's new cosmetics line claim that Kylie Cosmetics tried to sabotage the launch of Fenty Beauty.
• In a now-deleted tweet, Kylie Cosmetics promoted its dark brown lipstick a day before Fenty Beauty made its debut.
• According to Kylie Jenner, the shade is targeted towards people of color.
• Kylie Cosmetics also recently shared a series of Instagram posts to promote the color, which helped raise suspicion online. 
• Neither celebrity, Rihanna nor Jenner, has commented in response.

Fans of Rihanna and her new Fenty Beauty makeup line are in an all-out battle with fans of Kylie Jenner's Kylie Cosmetics.

The news, which was first reported on New York Magazine's The Cut, comes after Kylie Cosmetics promoted its Brown Sugar liquid matte lipstick used on Twitter the day before Fenty Beauty launched. 

Kylie Cosmetics' tweet has since been deleted, but at the time many users responded to express their disapproval. Some even claimed that Brown Sugar, a yellow-brown hue, is the brand's only neutral product catered towards people of color. 

Originally, Kylie Cosmetics released Brown Sugar as a lip kit back in August 2016. A separate tweet featuring singer Justine Skye declared it is the "perfect nude for deeper skin tones."

Amid the controversy, Jenner fans came to her defense saying that Brown Sugar is a Kylie Cosmetics staple.

The Cut reported, however, that Brown Sugar barely appeared on the Kylie Cosmetics Instagram page until now. Apparently, the brand re-released the shade in September as a part of its singles collection sold without lip liners. With this came promoting Brown Sugar numerous times during Fenty Beauty's launch weekend. 

The alleged irony didn't go unnoticed, and Rihanna fans were quick to point out that Fenty Beauty "was made with representation in mind."

The backlash continued on September 9 when Kylie Cosmetics tweeted an unrelated image of a highlighter. In response, one user went viral after mentioning that they would be buying Rihanna's makeup instead. 

Fenty Beauty officially debuted on September 8 with a foundation range that includes 40 shades —one of the largest offerings by a luxury brand to date.

Rihanna also introduced a "universal" lip gloss that was designed to look good on everyone, according to the brand's website. Plans of additional products are reportedly in the works and could possibly involve lipstick.

Neither Rihanna nor Jenner has commented on the matter. 

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