Meghan Markle is expanding her investment portfolio, adding another female-led brand to her growing list of ventures.

On Thursday, November 14, the Duchess of Sussex, 43, was snapped attending the Highbrow Hippie launch party at Gjelina restaurant in Venice, California. Celebrating new hair colorist Kadi Lee Hair care and wellness range (of which Meghan is an investor), she posed for photos with Lee and her longtime stylist Serge Normant, who styled Meghan’s hair for her. 2018 wedding TO Prince Harry.

“I’m so proud to invest in (Kadi) as a friend and as a female founder,” Meghan said InStyle of her investment in Highbrow Hippie: “Kadi has a mastery of hair health and her Highbrow Hippie collection is a perfect reflection of that.”

Meghan donned a sleeveless black jumpsuit for the event. The classic look included flared trousers and a pendant necklace to complement her boyfriend’s cleavage. The Duchess completed her ensemble with a pair of gold hoop earrings and several rings adorning her fingers, while her hair was styled in soft curls, parted down the middle.

In videos shared on Instagram after the event, Meghan was seen singing and dancing to a gospel choir.

“She was in a happy mood,” a source tells PEOPLE. “She was dancing and celebrating with her friends.”

Several of Meghan’s closest friends were also in attendance, including her longtime friend and make-up artist Daniel Martin, as well as Vicky Tsai, the founder of Tatcha, who appeared in the Netflix series of Meghan and Prince Harry. Harry and Meghan.

“We needed this celebration of community and creativity,” Martin tells PEOPLE. “I was honored to celebrate these women among such close friends.”

Lee, along with her friend and business partner Myka Harrisintroducing Highbrow Hippie Haircare & Wellness, solutions that reduce the root causes of hair loss to promote healthy hair aging.

In August, Meghan revealed she had invested in the woman-founded, sustainably sourced handbag brand The Cesta collective — and talked about how she invests in herself. Meghan said there are between five and 10 brands currently in her portfolio and said she sees them as complementary to her future lifestyle brand. American Riviera Orchard.

“Investing in them helped align me for this chapter of investing in myself,” the Duchess of Sussex said. The New York Times.

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Lee, who is also the hair colorist of Julia Roberts, Gwyneth Paltrowand Diane von Furstenberg,previously spoke to PEOPLE about Highbrow Hippie Haircare & Wellness, which she presented with her business partner Myka Harris.

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The brand, which has products such as Essential Wellbeing Complex Supplements and them Active growth serum for root restorationaims to solve hair loss problems and promote healthy hair aging.

“My hair feels healthier and stronger,” Julia Roberts told PEOPLE after using the product for six months. “The formula is incredibly light and absorbs quickly into my scalp without leaving any residue, even after days of use.”

In February, Lee’s Highbrow Hippie revealed the secrets behind Meghan winter hair color look.

“Chocolate brunette, for Meghan, Duchess of Sussex for the Invictus Games,” Lee wrote on Instagram. “This mix of red and gold hues makes for a dynamic brunette shade that not only gives skin the healthiest glow, especially in the colder winter months, but also gives hair a high-powered shine.”