ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 – Less-Is-More Daily SPF for Sensitive Skin, Lightweight Single-Step Lotion
ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 – Less-Is-More Daily SPF for Sensitive Skin, Lightweight Single-Step Lotion
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Why you'll love it
- NBC Select's #1 ranked facial sunscreen out of 100+ tested, providing trusted third-party validation
- Zero white cast finish makes it ideal for all skin tones and seamless under makeup
- Lightweight, non-greasy lotion texture feels breathable rather than heavy or occlusive
- Safe for sensitive and acne-prone skin, free from 19 harmful ingredients and fragrance
- OTC registered SPF 45 broad spectrum protection that meets US regulatory standards
- Birch juice hydrating formula doubles as a moisturizer so skin does not feel stripped
Perfect for
- Daily facial UV protection as the final step in a multi-step skincare routine
- Sun protection base layer worn under foundation and makeup without pilling or white cast
- Gentle sunscreen for sensitive eye area and post-procedure skin
- All-day breathable sun protection for sensitive, acne-prone, or combination skin
- Stocking a 2-pack value bundle for personal use plus travel or partner share
Product Information
ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45, 1.69 Fl Oz, Hydrating Lotion-like Lightweight Glow Sunscreen for Sensitive Skin, No White Cast, Fragrance-Free, Protector Solar, Korean Sunscreen
[NBC SELECT’S #1 FACIAL SUNSCREEN] Ranked No.1 out of 100+ sunscreens tested by NBC Select editors. Praised for its hydrating yet lightweight formula, zero white cast, and skin-soothing finish — perfect for daily use, even under makeup.
[OTC REGISTERED, TRUSTED SUN PROTECTION] This OTC registered UV Lock sunscreen is developed to retain the soothing, moisturizing benefits of our original Birch Juice Moisturizing Sunscreen while meeting SPF 45 Broad Spectrum regulations in the US (Exclusive to the US)
[LIGHTWEIGHT TEXTURE WITH NO WHITE CAST] The non-greasy, lightweight essence texture applies seamlessly, leaving no white cast while providing a smooth, natural finish. Perfectly make-up friendly, it helps create a protective UV barrier without clogging pores or feeling heavy
[SAFE FOR ACNE-PRONE, SENSITIVE SKIN] All ROUND LAB products are formulated with natural, non-toxic ingredients, free from 19 harmful substances. This sunscreen is gentle on sensitive, acne-prone skin and has completed low-irritation testing and German Dermatest certification. Suitable for all skin types
[HOW TO USE] Apply as the final step of your skincare routine after serum and moisturizer, gently patting onto face and neck. The gentle, non-stinging formula is safe even for the delicate eye area and washes off easily with regular cleanser. Its lightweight texture provides all-day comfort with breathable, non-greasy hydration
Features & Specs
Scent Name: Unscented
Product Benefits: Ultra-Violet Protection
Sun Protection Factor: 45 Sun Protection Factor (SPF)
Skin Type: Combination, Dry, Sensitive
Water Resistance Level: Not Water Resistant
Item Form: Cream
Target Use Body Part: Face
Additional Features: Korean skincare formula with unique hydrating and non-whitening properties
Skin Tone: All
Frequently Asked Questions
Does the packaging fit a clean, uncluttered vanity aesthetic?
Yes. The bottle is sleek and compact, designed to blend into a minimalist shelf rather than dominate it.
Is this truly a no white cast formula so my neutral-toned routine stays simple?
Yes. It applies completely clear, so you do not need to rub, blend, or wait to remove any chalky film — it just disappears into the skin.
Can this single product replace multiple steps in my streamlined routine?
Yes. It works as both a light moisturizer and a broad spectrum SPF 45, so you can simplify your morning to cleanse, treat, and protect.
Is the ingredient list short and intentional for a less-is-more skincare philosophy?
Yes. It is formulated without 19 commonly avoided substances and free from fragrance, keeping the formulation clean and considered.
Will it layer cleanly without pilling so my routine stays effortless?
Yes. The lightweight lotion is engineered to layer smoothly under makeup and other skincare without pilling or balling up.
I'm trying to simplify my shelf — is this a true multi-tasker?
Yes. It combines hydration, sun protection, and a makeup-friendly finish in one bottle, so you can retire separate moisturizer, SPF, and primer products.
Does the lightweight texture match a minimalist preference for barely-there skincare?
Yes. It feels like a thin hydrating lotion, not a traditional sunscreen, which is exactly what minimalists look for in daily wear.
Is the finish truly invisible so it works with any look I keep on rotation?
Yes. The finish is clear and non-greasy, so it works equally well on bare-skin days and as a base for a full makeup look.
How does this compare to a typical mineral SPF that leaves a white film?
Unlike most mineral SPFs, this one leaves zero white cast and feels like a moisturizer, making it far better suited to a minimalist, no-fuss routine.
Is this a better choice than a tinted SPF that adds another product to my lineup?
If you want to keep your routine to one protective step, yes. It offers a clear, breathable finish that can be worn alone or under any foundation.
I don't want a product with a long ingredient list — is this one clean?
Yes. It is formulated without 19 ingredients often avoided in clean beauty, and it is fragrance-free, so you get protection without unnecessary additives.
Will this leave my skin feeling heavy or layered?
No. The lotion absorbs into a barely-there, breathable finish that does not sit on top of the skin.
Does the bottle design justify its place on a curated, intentional vanity?
Yes. The compact, understated design is meant to fit alongside other considered skincare pieces without visual clutter.
How do I apply this sunscreen in my morning routine?
As the final step in your morning skincare routine, apply generously to your face and neck as the last product before makeup. It can be used on its own or over your regular moisturizer.
How much should I use for full face coverage?
Use about two finger-lengths of product to ensure you are getting the labeled SPF 45 protection across your entire face and neck.
Do I need to reapply during the day?
Yes. For continuous protection, reapply every two hours when you are in the sun, or after swimming, sweating, or towel-drying.
Is this compatible with foundation and makeup?
Yes. The lightweight, non-pilling formula is specifically designed as a makeup-friendly base, and the zero white cast finish works well under any foundation or complexion product.
Can I use this around my eye area?
Yes. The low-irritation tested formula is safe for the delicate eye area, including the orbital bone and eyelids, without stinging.
What comes in the box when I order?
Each order includes the sunscreen bottle as shown. A 2-pack includes two bottles. There are no additional accessories required to start using the product.
Is this product safe for sensitive or acne-prone skin?
Yes. It is fragrance-free, free from 19 harmful substances, non-comedogenic, and German Dermatest certified for low irritation, making it a safe choice for sensitive and acne-prone skin types.
What is the shelf life and how should I store it?
Store in a cool, dry place away from direct sunlight. Once opened, use within the period indicated on the packaging, typically 12 months, to ensure the formula remains effective.
What is the difference between a chemical and a mineral sunscreen, and which is this?
Chemical sunscreens absorb UV rays and convert them to heat, while mineral sunscreens sit on the skin and reflect UV. This ROUND LAB formula is designed to feel like a lightweight hydrating lotion, combining broad spectrum SPF 45 protection with a no white cast, non-greasy finish that is hard to achieve with traditional mineral formulas.
