ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 Sunscreen 1.69 fl oz — Lightweight Hydrating, No White Cast

ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 is a lightweight, lotion-like sunscreen that delivers SPF 45 broad-spectrum protection while hydrating without a white cast.

Designed from ROUND LAB’s bestselling Birch Juice line, this OTC-registered UV LOCK formula blends skin-soothing moisture with reliable UV defense. The texture feels like a hydrating essence rather than a heavy cream, making it comfortable for everyday wear, compatible with makeup, and suitable for sensitive or acne-prone skin. German Dermatest and low-irritation testing back its gentle profile, and the formula avoids 19 commonly problematic ingredients.

How does this sunscreen stay hydrating without feeling greasy?

The product uses a lotion-essence consistency that absorbs quickly, leaving a smooth, dewy finish rather than oily residue. Lightweight emollients and birch sap-derived humectants help lock in moisture without clogging pores.

• Essence-like texture for fast absorption and breathability
• Birch juice components to attract and retain water
• Non-comedogenic feel suitable under makeup

Will it leave a white cast on medium to darker skin tones?

No — the UV LOCK SPF 45 formula is formulated to minimize whitening and sits naturally on a wide range of skin shades. Its modern sunscreen actives and lightweight base disperse evenly, producing a neutral finish that photographs well.

• Engineered for no visible white residue
• Sheer, natural finish that blends into skin
• Makeup-friendly base for foundation layering

Is this safe for sensitive or acne-prone skin?

Yes — ROUND LAB emphasizes mild, low-irritation ingredients and excludes 19 harmful substances. The product completed dermatological testing and holds German Dermatest certification, making it a gentle choice for reactive skin types.

• OTC-registered for regulated UV protection
• Free of common irritants and harsh additives
• Lightweight formula reduces pore-clogging risk

How should I use it in my routine for best results?

Apply as the final skincare step after serum and moisturizer, patting gently over face and neck. Reapply every two hours during prolonged sun exposure, and wash off with your usual cleanser at day’s end.

• Use as the last daytime skincare step
• Safe for the eye area when applied gently
• Easy removal with regular facial cleansers

Who is this for: ROUND LAB Birch Juice Moisturizing UV LOCK SPF 45 is ideal for anyone who wants effective SPF protection that also hydrates—particularly those with sensitive, combination, or acne-prone skin and people who prefer a lightweight, non-greasy sunscreen. It’s a good match for daily commuters, makeup wearers seeking a neutral canvas, and skincare-conscious users looking for a tested, mild formula from a Korean skincare brand.

Ingredients

Active Ingredient : Avobenzone 2.7%, Homosalate 13.5%, Octisalate 4.5% Inactive Ingredients : Water, Butyloctyl Salicylate, Propanediol, Acrylates Copolymer, Butylene Glycol, Caprylyl Methicone, Polyglyceryl-3 Distearate, Benzotriazolyl Dodecyl P-Cresol, Niacinamide, Diethylhexyl 2,6-Naphthalate, Polymethylsilsesquioxane, Glycerin, Calcium Aluminum Borosilicate, 1,2-Hexanediol, Poly C10-30 Alkyl Acrylate, Pentylene Glycol, Cetearyl Alcohol, Tromethamine, Methylpropanediol, Glyceryl Stearate Citrate, Betula Platyphylla Japonica Juice, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Carbomer, Ethylhexylglycerin, Artemisia Annua Extract, Anthemis Nobilis Flower Oil, Sodium Stearoyl Glutamate, Glyceryl Polymethacrylate, Triethoxycaprylylsilane, Pinus Sylvestris Leaf Oil, Sparassis Crispa Extract, Polyether-1, Allantoin, Dipropylene Glycol, Glyceryl Glucoside, Biosaccharide Gum-1, Tocopherol, Portulaca Oleracea Extract, Sodium Hyaluronate, Hyaluronic Acid, Ascorbic Acid