Fee Steinvorth Wants to Relax Your Nervous System

The founder of neoNutrition has a new formula designed to ease chronic stress and calm cortisol.

We caught Fee on the phone from her car in LA — warm, direct, and completely certain about what she’s made. “Anxiety disorders are now the most common mental health condition globally,” she says. “Chronic stress has become so normalised that we have stopped recognising it as the emergency it actually is.” Ultimate Mood is her answer — a once-daily evening powder built around three rigorously studied botanicals: Ashwagandha KSM-66®, shown to reduce cortisol by up to 30% across 24 clinical trials; St. John’s Wort, with more than 30 randomised controlled trials behind its effect on mood-governing neurotransmitters; and Reishi, long established as an adaptogen. Everything is USDA Organic, NSF GMP Certified, and third-party verified — the same uncompromising standard that runs through everything neoNutritions makes.

The results build slowly, which is exactly the point. In the first fortnight, most people notice a gentle softening — an easier slide into evening, less mental noise before bed. By the third and fourth week, that steadiness extends into daylight hours: stressful moments land differently, emotional resilience quietly accumulates. By weeks six to eight, something deeper has shifted. Recovery from demanding days feels more natural. Sleep follows more readily. This is the herbal way — patient, intelligent, cumulative.

The taste, Fee notes, is intentionally unprocessed — earth-forward and honest, with a mild herbal complexity balanced by black currant, fig, and rose. No stevia, no masking agents. What you taste is the formula itself.

For mornings, Fee blends the Steinvorth family shake — built around any of the Ultimate supplements and designed to serve three kids. Organic berries (fresh or frozen), one banana, mango if you have it, raw organic whole milk, cacao nibs, and one walnut per child. Five minutes, no fuss, and most of what growing bodies need before heading out the door.

For evenings Fee takes hers two hours before sleep, that threshold between the active part of the day and the quieter part. Whisked into a slightly cooled chamomile or tulsi tea with a drizzle of raw honey.

Ultimate Mood launches in collaboration with Lykke Li. Put on The Afterparty and let the evening begin.

Fee is our north star for ingredients — this is a woman who has done the work, studied the traditions, and built something with genuine care at its centre. With that in mind, we also asked what she reaches for on the outside.

Her current skincare rotation:

Mud Mask — Lesse
Honey Mask — Activist
Rose Cleansing Oil — Monastery
SPF  — Emma Lewisham
Birch Oil — Weleda
Collagen Cream — Suraya