Home / Sunscreens / Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++
Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++
By Nur → Last verified 9/27/2026
Price checked 9/27/2026
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What we found
Based on how this product compares to others in the sunscreens category, cross-referenced against retailer listings and market data.
Strengths
- + High review volume, consistently well-rated
- + Popular for dry skin
- + Contains niacinamide and hyaluronic acid alongside the birch sap base, not just a single marketing ingredient
Worth knowing
- - Lightweight, dewy finish may feel too light for very dry skin seeking a heavier cream
Key ingredients
These are the ingredients Round Lab highlights for this product, cross-checked against general dermatological and cosmetic-chemistry sources, not a full INCI list.
Fragrance: this formula contains added fragrance.
| Ingredient | What it is | What it does for skin |
|---|---|---|
| Niacinamide | A form of vitamin B3, one of the most studied ingredients in cosmetic dermatology. | Strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. |
| Hyaluronic acid | A humectant naturally found in skin, capable of holding many times its weight in water. | Draws moisture into the skin's surface, helping it look and feel plumper and more hydrated. |
| Ascorbic Acid | Pure vitamin C, the classic reference form and among the most extensively studied, though prone to oxidizing (degrading) once opened. | A strong antioxidant that helps brighten and even skin tone; actual potency depends heavily on concentration, pH, and formulation, which isn't always disclosed, so it isn't automatically stronger than a stable derivative at an adequate dose. |
| Adenosine | A compound naturally present in skin cells, used in skincare as an anti-aging active. | Recognized by South Korea's MFDS as a functional anti-wrinkle ingredient at 0.04% concentration, based on clinical studies showing measurable fine-line improvement; a real but modest effect, not a retinoid substitute. |
What the brand says
Round Lab's own marketing claims, not our own findings.
- Chemical sunscreen
- Marketed for dry/sensitive skin
- Moisturizing finish
Research-Based
Our assessment comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. This product hasn't been hands-on tested yet. See our Methodology for what that distinction means.
Price history
Current price is the lowest we've recorded so far.
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Frequently asked
How much does Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++ cost per mL?
$0.39 per mL (currently $19.50 for 50 mL).
Has Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++ been hands-on tested?
Not yet. Our assessment for this product comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. See our Methodology for what that distinction means.
Has Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++ won any awards?
Yes -- #1 in Olive Young Awards 2022; #1 in Olive Young Awards 2023; #1 in Olive Young Awards 2024; #1 in Olive Young Awards 2025; Best Performer in Olive Young Awards 2025.
What are the key ingredients in Round Lab Birch Juice Moisturizing Sunscreen SPF50+ PA++++?
The ingredients Round Lab highlights for this product include Niacinamide, Hyaluronic acid, Ascorbic Acid, Adenosine.
Sources
Pricing and availability for this product were verified against the following retailer listings.