Meghan Markle made a "joyful" appearance at the Highbrow Hippie launch party at Gjelina in Venice, California, on Thursday, Nov. 14, a source tells PEOPLE

For years, Meghan Markle has been a supporter of Kadi Lee, the celebrity colorist responsible for her chestnut brown locks. Now, that support has become a part of Meghan’s investment portfolio. On Thursday,

Hair is important,” Julia Roberts, who Lee recently took blonde, calls to tell me the day before the launch, “and when you know that is when you lose it.” Roberts’s hair is in excellent shape, thanks to Lee.

The Duchess of Sussex quipped about the beauty hack at the launch of Highbrow Hippie's new haircare line Meghan Markle shifted her beauty routine in a relatable way during the COVID pandemic: boxed hair color.

The Duchess of Sussex attended the launch party for her dear friend and hair colorist Kadi Lee's new brand, Highbrow Hippie Haircare and Wellness. Meghan graced Gjelina restaurant in Venice, California,