Serum

Ultimate Serum

Last updated: March 2026

The Ultimate Serum contains three actives that address three distinct aspects of skin health simultaneously in a single lightweight formula. It is designed to be applied after cleansing and before moisturiser, giving each active ingredient direct contact with the skin before the moisturiser layer seals everything in. Hyaluronic Acid is the primary hydrating active. A single molecule can bind up to 1,000 times its weight in water, drawing moisture from the environment and from the deeper layers of the skin and holding it at the surface. The result is visible plumping and a reduction in fine line depth from the first application. This is not a cumulative effect that takes weeks. It is a direct physical response to the skin being properly hydrated, visible within minutes. Vegetable Collagen, derived from seaweed rather than animal sources, forms a flexible film on the skin surface that supports elasticity and reduces the appearance of fine lines. It does not replace the collagen in the skin, the molecules are too large for that, but it provides structural support at the surface while the Gotu Kola in the Anti-Ageing Elixir works on internal collagen production in the evening routine. L-Ascorbic Acid (Vitamin C) is the most bioavailable form of topical Vitamin C. It brightens skin immediately and defends against the UV-generated free radical damage that breaks down collagen over time. Radish Root Ferment Filtrate provides natural antimicrobial preservation. The formula is lightweight, absorbs quickly, and leaves no residue. Suitable for oily, combination, dry, and mature skin. 100% vegan and cruelty-free.

Scent: Unscented

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The Ultimate Serum combines Seaweed Collagen, Hyaluronic Acid, and Kakadu Plum Vitamin C in a water-based formula designed to absorb quickly and work on multiple concerns simultaneously. That combination is highly effective for most men. There are a few situations where it is worth pausing before you start.

If your skin is currently dealing with active, inflamed breakouts, the Hyaluronic Acid will still hydrate and the Vitamin C will still brighten, but the inflammation may prevent the deeper active work from landing properly. In this case, spend two to three weeks on just the cleanser and moisturiser to calm the skin first. A stable surface absorbs a serum significantly better than an inflamed one.

If you are already using a prescription Vitamin C, a clinical retinoid, or a dermatologist-prescribed treatment, be deliberate about sequencing rather than stacking. Kakadu Plum delivers more bioavailable Vitamin C per gram than most synthetic formulations, but combining high-potency natural Vitamin C with prescription Vitamin C compounds can push the skin beyond what it can comfortably process. If in doubt, use one or the other and speak to your dermatologist.

The Seaweed Collagen in this serum supports your skin's collagen and elastin matrix over time. This is not a one-application fix. Most men notice improved hydration and a smoother surface within three to four weeks. The visible reduction in fine lines that comes from consistent collagen support takes six to eight weeks. If you are expecting a dramatic change in the first week, this is not the right product for that expectation. No topical serum is.