The Science of Seamless
TL;DR
The seamless SONNI texture that you know and love is a result of smarter science. We did a deep dive into zinc potency, skin-friendly ingredients, and intentional design to create mineral-based protection that fits your life and your routine without all the usual tradeoffs.
Why We Built SONNI Around "Seamless"
Lots of people skip sunscreen because of how it feels (thick, sticky, hard to blend)—and that’s not a user problem, it’s a formula problem!
We wanted to rethink mineral-based SPF from the inside out to make it easy to apply, reapply, and trust. Here's how:
- Start with pure-metal zinc, not powdered zinc oxide
- Build from a hydrating, barrier-supporting base
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Test across all skin tones and routines to make sure it blends and wears comfortably
- Iterate for everyday life! Commutes, workouts, window desks
The Zinc Difference: Smarter Science, Seamless Texture
Mineral filters like zinc oxide protect by sitting on the surface and managing UV before it does damage. When particles are well-dispersed in a supportive base, you get reliable coverage with a lightweight, skincare-like feel. That’s the blendability you'll notice in SONNI.
What that means for you:
- Derm-tested, broad-spectrum UVA/UVB coverage in our SunDay formulas
- Textures designed to blend, set, and stay comfortable
- Keeps skin calm, hydrated, balanced, and protected

Skin-First Formulas That Feel Good
Our suncare starts where skincare does: with the skin barrier. Each formula works to maintain water balance and strengthen the lipid barrier while active filters protect from UV damage. SPF formulas include:
- Niacinamide to strengthen and brighten the barrier
- Hyaluronic acid and squalane for lasting hydration
- Allantoin and bisabolol to soothe and smooth
This combination allows SONNI SPF to behave like skincare: absorbing easily, setting to a smooth finish, and remaining breathable throughout the day.
What Seamless Really Means
“Seamless” is our north star for mineral-based protection you’ll actually want to wear. It means our formulas are balanced—there's a harmony between mineral particle size, structure, and your skin’s barrier.
It blends evenly, wears comfortably, and moves with your skin to create lightweight, lasting protection that keeps up with you from morning commute to mid-day run. Protection only the sun knows you’re wearing!
Why It Matters
When SPF feels good, you don’t forget it. When it fits into your life, there's a better chance you'll use it daily. And that's the whole point: smarter science makes caring for your skin feel like second nature.
Bottom Line
We made mineral-based SPF that feels like skincare: seamless, mineral-based protection designed for real life and the skin that lives in the sun.