Light Reading

Close-up of a woman’s neck and collarbone in soft natural light, highlighting smooth, bare skin with a few natural freckles and moles visible.

Is Mineral Sunscreen Better for Sensitive Skin?

Learn why mineral suncare is often better tolerated by reactive or barrier-compromised skin, how zinc oxide works differently, and what to look for in a formula.

Ask SONNI

Is Mineral Sunscreen Better for Sensitive Skin?

Learn why mineral suncare is often better tolerated by reactive or barrier-compromised skin, how zinc oxide works differently, and what to look for in a formula.

A person in a red jacket tosses a snowball while running across a snowy mountain trail, with evergreen trees and snow-covered peaks in the background.

Why Some Sunscreens Make Skin Feel Worse, Espec...

If your sunscreen suddenly feels uncomfortable lately – tight, drying, some stinging – you’re not imagining it.

Why Some Sunscreens Make Skin Feel Worse, Especially in Winter

If your sunscreen suddenly feels uncomfortable lately – tight, drying, some stinging – you’re not imagining it.

Close-up of a person’s face in sunlight, eyes closed, with soft shadows across the skin and a natural, hydrated glow.

How Much SPF Should I Use on My Face?

Short answer: more than you think. Most people put on SPF with the best intentions, but it’s usually not enough product to get the protection they expect. 

Ask SONNI

How Much SPF Should I Use on My Face?

Short answer: more than you think. Most people put on SPF with the best intentions, but it’s usually not enough product to get the protection they expect. 

Hand holding a blue SONNI mineral suncare tube against a soft blue sky background.

SunDay Mineral Serum or SunDay Invisible Defens...

Two mineral SPFs. Two very different jobs. Here’s how to choose between SunDay Mineral Serum SPF 50+ and Invisible Defense SPF 40+ based on your routine, skin, and lifestyle.

The System

SunDay Mineral Serum or SunDay Invisible Defense? Here’s How to Choose.

Two mineral SPFs. Two very different jobs. Here’s how to choose between SunDay Mineral Serum SPF 50+ and Invisible Defense SPF 40+ based on your routine, skin, and lifestyle.