The Winter
Defense Protocol.
The Standard Every Formula Must Meet
Northern winters impose a specific, measurable set of stressors on the skin barrier: cold air, near-zero absolute humidity, sustained wind exposure, five months of cumulative barrier degradation. The Winter Defense Protocol is a cold-climate protection system engineered to address all of them — before the damage accumulates, not after it appears.
A category the industry
chose not to build.
The global skincare industry is built around temperate climates. Products are developed, tested, and validated in conditions where ambient humidity is moderate, temperatures are mild, and seasonal stress on the skin barrier is manageable.
That is a reasonable design brief for the majority of the world's skincare consumers. It is not a reasonable design brief for anyone spending five months a year in sub-zero temperatures with near-zero absolute humidity and sustained wind exposure.
At −20°C, outdoor absolute humidity approaches zero. Cold air strips the hydrolipidic film from the skin surface. Ceramide synthesis in the stratum corneum slows. Transepidermal water loss accelerates. The barrier breaks down — not dramatically, but consistently, day after day, for the entire length of a northern winter.
One design brief.
Every formula starts here.
The Winter Defense Protocol begins with a different design brief entirely. Not: what performs well in temperate conditions and can be adjusted for cold. But: what does the skin barrier specifically require to remain intact through a Winnipeg winter?
Northern Winter Design Brief
Every formula begins at −30°C, near-zero humidity, sustained wind — not a temperate baseline.
3:1:1 Ceramide-Dominant Ratio
Ceramides at the clinically established ratio for accelerated barrier recovery. Not trace concentrations.
Low-Humidity Humectant Efficacy
Humectants selected for performance at near-zero ambient humidity, not temperate test conditions.
Cold-Stable Occlusive Performance
Film integrity validated at sub-zero temperatures. Performs in the field, not only in the lab.
No Unnecessary Irritation Risk
No fragrance. No ingredient whose only function is cosmetic appeal on an already-stressed barrier.
Prevention-First Purpose
Built for daily use before damage accumulates. A defence, not a repair.
Prevention is the
only honest strategy.
The skincare industry is structured around reactive care. Products are formulated to address visible damage — dryness, redness, irritation, premature ageing — after it has already occurred.
We apply SPF daily because we understand that UV damage is cumulative, largely invisible until it isn't, and far easier to prevent than reverse. That same logic applies directly to cold-climate environmental stress.
The barrier damage that accumulates over five months of northern winter is real, measurable, and compound. It does not announce itself dramatically. It erodes barrier integrity slowly, consistently, and — with the right formulation — preventably.
What we will
never do.
Category leadership requires discipline. These are the commitments Boreal Shield™ will not compromise — regardless of what is commercially convenient.
Formulate for temperate climates and call it cold-climate barrier protection
Every product in the Protocol is designed from the ground up for northern sub-zero conditions.
Use trace ceramide concentrations for label credibility
Ceramides listed near the bottom of an ingredient list are too low to meaningfully rebuild the lipid matrix.
Add fragrance to products for stressed skin
Fragrance is among the most common causes of contact irritation. No Boreal Shield™ product will contain it.
Make claims we cannot defend with science
Every claim Boreal Shield™ makes is grounded in cold-climate skin barrier research.
"Skincare has long underestimated winter as an environmental stressor. Boreal Shield™ was engineered to change that — by treating cold exposure as something to protect against, not just recover from."— Sarah Schott, Founder of Boreal Shield™
The Winter Defense Face Cream and Sport Stick — the first products in the Protocol. Join the waitlist for early access at launch.