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,

Meghan Markle’s recent comments about boxed hair dye have sparked backlash from some royal fans, who labeled her remarks as tone deaf. The Duchess of Sussex made the quip during

The Duchess of Sussex, 43, made the relatable revelation at the Nov. 15 launch party for her close friend and hair colorist Kadi Lee’s new Highbrow Hippie Haircare and Wellness line at Gjelina restaurant Venice, California, showing support for the female-founded venture she backs as an investor.

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.

Many people will tell you, hair maintenance is an involved, time-consuming process. Whether you're due for your next keratin treatment, root smudge, or just a regular trim, getting to the salon routinely every few months can feel like a lot.