ROUND LAB Birch Juice Mineral Sunscreen SPF 50+ 1.69 fl oz — Zinc Oxide, Lightweight Satin Finish

ROUND LAB Birch Juice Mild-up UV LOCK SPF 50+ is a mineral, zinc-oxide physical sunscreen that delivers high broad-spectrum protection while feeling lightweight and non-greasy on sensitive skin.

This Korean-formulated face sunscreen combines non-nano zinc oxide with hydrating birch sap to protect against UVA and UVB rays without heavy white cast or irritating fragrances. Designed for daily use under makeup, the Mild-up UV LOCK prioritizes skin comfort: it’s fragrance-free, free of 19 harsh ingredients, and clinically tested for safety. The texture aims for a satin finish that controls oil while maintaining moisture, making it a practical addition to both minimalist and layered skincare routines.

How well does this sunscreen protect my skin from sun damage?

The product uses non-nano zinc oxide to provide physical, broad-spectrum protection at SPF 50+ and PA++++ levels. Zinc oxide sits on the skin surface to reflect and scatter UVA and UVB rays, offering dependable coverage for daily outdoor exposure.

• SPF 50+ and PA++++ rating for high-level UVA/UVB protection
• Mineral (physical) filter: non-nano zinc oxide
• Suitable for sensitive skin due to gentle mineral active

Will this sunscreen work well under makeup and for oily or combination skin?

Yes — the formula is lightweight, absorbs quickly, and leaves a soft satin finish that layers comfortably beneath foundation or tinted products. It was formulated with oil control in mind, helping reduce shine without over-drying the skin.

• Non-greasy texture that blends smoothly under cosmetics
• Soft satin finish reduces midday shine
• Designed to be non-comedogenic to avoid clogging pores

How does birch sap help in this sunscreen?

Birch sap is included to add hydration and to support the skin’s moisture barrier while the mineral filter protects from UV exposure. It provides lightweight soothing and helps maintain skin comfort during daily wear, especially for sensitive or easily irritated skin.

• Hydrates without heavy emollients
• Supports the skin’s moisture barrier
• Calming effect for sensitive or reactive skin types

Is this safe for sensitive skin and free from irritating ingredients?

ROUND LAB’s Mild-up UV LOCK is formulated without 19 commonly harsh ingredients, including parabens, artificial fragrances, and mineral oil. It is fragrance-free, dermatologist-tested, hypoallergenic, and certified by German Dermatest, making it a good choice for people who prioritize gentle skincare.

• Fragrance-free and no artificial scent to minimize irritation
• Dermatologist-tested, hypoallergenic, and non-comedogenic
• Free of parabens, mineral oil, and other specified harsh additives

Who this is for: ROUND LAB Birch Juice Mild-up UV LOCK SPF 50+ suits anyone looking for a reliable mineral sunscreen that feels light on the face and layers well with makeup. It’s especially appropriate for sensitive, oily, or combination skin types who want strong broad-spectrum protection without fragrance, heavy silicones, or pore-clogging ingredients. If you prefer physical UV filters and a hydrating finish that tames shine, this Korean sunscreen is designed for everyday facial use and daily sun defense.

Ingredients

Water, Cyclohexasiloxane, Butylocty Salicylate, Propanediol, Propylhepty Caprylate, Isododecane, Capryly Methicone, Polyglyceryl-3 Polydimethyl- siloxyethyl Dimethicone, Methyl Methacrylate Crosspolymer, Methyl Trimethicone, Disteardimonium Hectorite, Magnesium Sulfate, Triethoxycaprylyl- silane, 1,2-Hexanediol, Polyglyceryl-2 Dipolyhydroxystearate, Polymethyl- silsesquioxane, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Butylene Glycol, Betula Platyphylla Japonica Juice, Glyceryl Caprylate, Caprylyl Glycol, Ethylhexylglycerin, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Sodium Hyaluronate Pinus Sylvestris Leaf Oil, Glycerin, Nelumbo Nucifera Leaf Extract, Cryptomeria Japonica Leaf Extract, Saccharomyces Ferment Filtrate, Tocopherol, Glyceryl Glucoside Hyaluronic Acid, Ascorbic Acid