Beauty Editors Say Martha Stewart’s Face Serum Is Worth the Splurge

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If there’s one person whose skincare routine deserves our attention, it’s probably Martha Stewart. The lifestyle mogul has spent decades teaching us how to set a table, decorate a home, and roast the perfect chicken. And, considering her famously radiant complexion at 84, she may have accidentally become one of beauty’s most convincing ambassadors too. After five years of development alongside board-certified dermatologist Dr. Dhaval Bhanusali, Stewart launched Elm Biosciences in late 2025. Nearly a year later, the biotech-driven brand’s hero product (the A3O Elemental Serum) has already established itself as a favorite among beauty editors and skincare devotees alike.

The $135 serum is powered by the brand’s patent-pending A3O Complex, an antioxidant designed to target UV damage, discoloration, dehydration, and irritation. It’s formulated as a gentler, more stable alternative to traditional vitamin C, making it a game-changer for sensitive skin. The formula is also infused with line-smoothing hyaluronic acid to lock in hydration, squalane to support the skin barrier, vitamin E to soothe, and blue tansy to help lift redness and discoloration.

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