What is Triome™?

At TSOS™, every formula begins with the barrier.

Your skin barrier is the outermost layer of your skin, and one of its most important roles is to help keep essential moisture in and environmental stressors out. When it is well supported, skin tends to feel more hydrated, comfortable, resilient, and balanced. When it is under-supported, skin can feel tight, dry, reactive, rough, or easily irritated.

That is why we created Triome™: our proprietary skin-support complex, and the foundation of every TSOS™ formula.

Skincare Science, Rooted in Nature

The ecosystems of the Pacific Northwest survive the very climates and conditions that can disrupt our skin barriers: moisture loss, environmental stress, shifting temperatures, wind, and exposure.

So, we studied their synergies and replicated their biologies in Triome™.

Inspired by seawater algae, freshwater microalgae, and terrestrial amino acid systems, Triome™ was developed to help calm visible signs of inflammation, restore moisture in the skin, and support barrier repair in sensitive, reactive skin.

It is not a single trending ingredient. It is a considered blend of skin-supportive components designed to work together to help skin feel hydrated, calm, and more resilient.

A Barrier-First Complex

Triome™ brings together three key biological inspirations:

Seawater Algae

Seawater algae helps support barrier function and surface hydration, helping alleviate the feeling of tightness and discomfort.

In Triome™, this inspiration reflects our focus on skin that feels depleted, dry, or stressed. By supporting hydration at the surface, Triome™ helps create the conditions for skin to feel more comfortable and balanced.

Freshwater Microalgae

Freshwater microalgae is known for its skin-comforting and anti-inflammatory properties, helping calm reactive skin and support barrier repair and resilience.

For sensitive or easily stressed skin, this is especially important. A barrier-first routine should not only hydrate — it should also help reduce the look and feel of reactivity.

Terra Amino Acids

Terra amino acids are inspired by the skin’s own natural free amino acids, which form part of the skin’s natural moisturizing factor.

These amino acids help support hydration from within the barrier, improving the feeling of moisture retention, softness, and resilience.

Why We Created Triome™

Many skincare routines focus on correction: brightening, firming, smoothing, resurfacing. These can all have a place, but for sensitive, dry, dehydrated, or reactive skin, the barrier should come first.

A strong routine is not only about what skin can tolerate today. It is about helping skin become more resilient over time.

Triome™ was created to bring that philosophy into every TSOS™ product. Whether a formula is designed to hydrate, brighten, replenish, firm, or comfort, Triome™ helps anchor it in barrier support.

What Triome™ Helps Support

Triome™ was designed to help:

• Calm visible signs of inflammation
• Restore moisture in the skin
• Support barrier repair
• Improve the feeling of tightness and discomfort
• Support sensitive, reactive skin
• Help skin feel more hydrated, balanced, and resilient

It works through a multi-component approach that includes algae-derived inspiration, amino acid support, minerals, humectants, and skin-conditioning ingredients.

Why It Is in Every Formula

We believe effective skincare should not force you to choose between results and comfort.

That is especially important for skin that is sensitive, dry, dehydrated, or easily stressed. A brightening serum, firming treatment, or moisturizer should still respect the barrier. Triome™ allows every TSOS™ formula to stay connected to our core philosophy: skin health begins with barrier support.

Each product in the collection has its own purpose, but the same foundation.

The Foundational Serum focuses on hydration and barrier support.
The Brightening Serum targets uneven tone and dullness.
The Replenishing Gel and Replenishing Cream support moisture and comfort.
The Firming Treatment focuses on visible signs of firmness and resilience.
The Correcting Eye Treatment supports the delicate eye area.

Triome™ connects them all.

What Makes Triome™ Different?

Triome™ was developed by a Professional Chemist with a formulation-first approach.

It was not added because it sounds impressive on a label. It was built to support how the formulas feel, how they layer, and how they fit into a barrier-first routine.

It reflects what we believe skincare should be: measured, supportive, effective, and considered.

No unnecessary harshness.
No chasing trends.
No complicated routine for the sake of complexity.

Just formulas designed to help skin feel hydrated, calm, and more resilient.

The TSOS™ Philosophy

At TSOS™, we believe resilient skin starts at the barrier.

Triome™ is one way we bring that belief into every product we make. It is the common thread throughout the collection and the foundation of our approach to skincare: support the barrier first, then build from there.

Because when the skin barrier is cared for, everything else has a stronger place to begin.

Reviewed by Connor Greig, P.Chem
Professional Chemist and Founder, TSOS Skincare