UK Supplement Trends — November 2025: calm and focus arrive

Part of The Formulation Index, Supplement Factory’s monthly read on what UK brands are actually briefing us to make.

November held the line and added a new dimension. The immune base built in October stayed strong, with Magnesium steady at 53% and Zinc climbing to 42%, but the month’s real character came from the actives that support the mind rather than the immune system.

Ingredient in focus: L-Theanine

L-Theanine reached 23% of all quotes, one of its strongest months, and it did not arrive alone. Rhodiola climbed to 15% and Green Tea Extract to 25%, a cluster of calm, focus and adaptogenic actives stepping forward together as the darkest, most stressful stretch of the year set in. L-Theanine is the anchor of this stack: paired with caffeine it smooths energy, paired with Magnesium it supports sleep and relaxation. Its rise is part of one of the most durable trends we track, the movement of nootropic and stress-management actives from a niche into the mainstream of everyday wellness.

What else moved

The winter base stayed firm beneath the functional layer, Vitamin B6 up to 40% and the minerals holding. It was a month with two clear stories running in parallel: a strong immune foundation and a rising calm-and-focus category on top of it.

What it means for brands

November points to one of the clearest formulation opportunities in the market: the calm-and-focus stack. Magnesium and L-Theanine together, with a botanical or adaptogen such as Rhodiola, is a combination consumers increasingly recognise and seek out, and it spans sleep, stress and focus claims from a small, affordable set of actives. If you are looking for a functional angle with genuine momentum behind it, this is one of the safest bets the data offers.

As the year closed, the market layered a second theme on top of the immune and calm base: beauty, and the premium demand of the party and gifting season.

The Formulation Index is built from Supplement Factory’s own formulation quotes, actives only, each ingredient counted once per quote. Explore the live Index →