Barrier First.
Everything Else Later.
Why the skin barrier is the prerequisite for everything else, and exactly where Vitamin B12 fits in.
Your skin barrier is more than a surface layer
Before any active can do its job, your skin barrier needs to be intact.
The stratum corneum is the outermost layer of the epidermis and acts as a highly effective barrier: skin cells held together by lipids such as ceramides, fatty acids and cholesterol. Tight junctions beneath it help regulate permeability and support barrier function.
When this barrier weakens (through UV exposure, pollution or over-cleansing), moisture escapes, irritants enter, and the sensitivity loop begins. Inflammation gets triggered as redness and itching: the surface signs of a barrier under stress. Piling on actives during a flare only makes it worse, which is why many dermatologists recommend a barrier-restoration window before reintroducing retinoids or acids.
"Barrier repair isn't one step in a routine. It's the prerequisite for every other step to work."
When the barrier is compromised, mast cells release histamine and cytokines, driving redness, irritation and sensitivity, which weakens the barrier further.
Meet Cyanocobalamin:
the inflammation inhibitor
One of the most structurally complex vitamins in biology. A precise tool for breaking the inflammation cycle.
Vitamin B12 is a water-soluble vitamin that contains cobalt and cannot be made by the human body. In skincare, the form used is usually cyanocobalamin, which works locally on the skin.
It acts as a scavenger of nitric oxide (NO), a molecule that promotes inflammation and irritation in reactive or sensitive skin. By reducing NO at the site of inflammation, topical B12 helps calm the inflammatory cascade and dial down the signals tied to cytokine-related irritation.
It also helps reduce itch and histamine-driven reactions, likely by calming overactive immune cells and supporting a more balanced skin response, rather than by "blocking" them in a drug-like way.
Sensitive skin isn't fragile. It's responsive, and B12 helps it respond better.
Vitamin B12: the molecular multitasker
Helps suppress inflammatory cascades by blocking mast-cell degranulation before cytokines release.
Helps reduce irritation, itching and redness as the inflammatory reaction diminishes.
Helps support barrier repair: with inflammation reduced, the barrier can restore itself.
Helps maintain calm, healthy-looking skin.
Two formats. One system.
The toner prepares the skin by delivering B12 alongside humectants and NMF, restoring water content and beginning to calm the reactivity loop. The moisturiser takes it further, reinforcing the barrier with five ceramides and locking in moisture so the skin can focus on repair.
Used in sequence, they deliver hydration, barrier-supporting lipids and Vitamin B12 at different stages of the routine.
B12 + NMF 03% Face Toner
A soothing toner with Vitamin B12, humectants and hydrators. Amino acids, NMF, Hyaluronic Acid, Trehalose and Betaine help retain moisture and support the skin's natural hydration balance, while Panthenol soothes.
B12 + Repair Complex 5.5% Moisturiser
A fast-absorbing moisturiser with Vitamin B12, ceramides and Vitamin B5 that helps soothe irritation, calm redness and restore the barrier. Five ceramides (EOP, NS, NP, AS, AG) and lipids strengthen and protect; Betaine's high water-binding capacity locks it all in.
The pink tint is pure Vitamin B12 (Cyanocobalamin). No dyes. Just efficacy.
Sensitive skin is skin under stress. It's responsive, and B12 helps it respond better.
When the barrier is intact, everything else works. Moisture stays. Skin stops reacting to triggers it shouldn't. Vitamin B12 brings a clearly mapped mechanism and growing clinical evidence to that job.
