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Round Lab Birch Juice Moisturizing UV Lock Korean Sunscreen with No White Cast, Moisturizing, Reef Safe, UVA & UVB Protection - SPF 45 - 50ml
Round Lab

Birch Juice Moisturizing UV Lock Korean Sunscreen with No White Cast, Moisturizing, Reef Safe, UVA & UVB Protection - SPF 45 - 50ml

SPF 46
Our score 75.3 / 100

13.5% homosalate exceeds the [SCCS face-use level](https://health.ec.europa.eu/system/files/2022-08/sccs_o_260.pdf); oils add allergy concerns. Silicones suggest slip; actual harm and wear are unpro

Invisible No white cast — chemical/hybrid filters that straight-up disappear on skin. Sensitive & baby fragrance-free, low-irritant, baby-safe gentle formulas. United States
03 The facts, at a glance
Protection
Filter type Mineral filters (zinc oxide, titanium dioxide) sit on skin and reflect UV. Chemical filters absorb UV. Hybrid runs both.
Chemical
Broad spectrum Covers both UVA and UVB. UVA drives aging and deeper damage; UVB gives you burns.
Yes
Formulation & feel
Texture How it feels going on — milk, gel, cream, spray, stick, essence, lotion, powder, or cushion.
Cream
Finish How it looks once dry: matte, natural, dewy, or glowy.
Natural
Tinted Adds sheer pigment (iron oxides) that masks the white cast common to mineral filters and gives a skin-tone finish.
No
fragrance-free No synthetic perfume added. Not FDA-defined in the US; the EU requires 'Parfum' + the 26 named allergens on the label. 'Unscented' is different — it can hide masking fragrance. Botanical oils still scent.
Yes
Alcohol-free No drying short-chain alcohols (alcohol denat., SD alcohol, ethanol). Doesn't mean fatty alcohols like cetyl or stearyl — those are emollients.
Yes
Where to buy it
Target US In stock
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75.3
Composite score · independent
Ranks #1634 of 1759 in the current catalogue. 13.5% homosalate exceeds the [SCCS face-use level](https://health.ec.europa.eu/system/files/2022-08/sccs_o_260.pdf); oils add allergy concerns. Silicones suggest slip; actual harm and wear are unpro
Composite is a weighted blend: UV 25% · Modernity 10% · Sensitivity 15% · Environment 10% · Elegance 15% · Health 25%. That's the recipe.
The score breakdown
UV protection How hard it blocks UVA + UVB across the spectrum at the stated SPF/PA. 78
Filter modernity Dings legacy filters (octinoxate, oxybenzone); rewards photostable next-gen ones. 50
Sensitivity safety Risk for reactive skin — fragrance, alcohol, and known sensitisers. 68
Reef / env. safety Reef toxicity plus how biodegradable the UV filters and surfactants are. 85
Cosmetic elegance Spread, finish, white-cast, and how it actually feels on skin. 84
Health safety Endocrine concerns and systemic absorption signals across the whole formula. 78
02 Composition · key UV filters 3 filters resolved
UVA-I 340–400nm UVA-I (340–400nm) — covered UVA-II 320–340nm UVA-II (320–340nm) — covered UVB 290–320nm UVB (290–320nm) — covered
Avobenzone Legacy Older organic filter. Photostable in combination; some literature concerns.
Homosalate Legacy Older organic filter. Photostable in combination; some literature concerns.
Octisalate Legacy Older organic filter. Photostable in combination; some literature concerns.
04 Full ingredient list (INCI) 44 ingredients
MODERN FILTER 0 LEGACY FILTER 4 MINERAL FILTER 0 ADDED FRAGRANCE 0 NATURAL FRAGRANCE 0 ALCOHOL 0 WATCH 0 ACTIVE 7
Butyl Methoxydibenzoylmethane Avobenzone — UVA filter, needs stabilisation. · Homosalate Homosalate — legacy UVB filter; endocrine literature. · Ethylhexyl Salicylate Octisalate — older filter; well-tolerated. ·Water· Butyloctyl Salicylate Salicylate-class booster; supports avobenzone. ·Propanediol·Acrylates Copolymer·Butylene Glycol·Caprylyl Methicone·Polyglyceryl-3 Distearate·Benzotriazolyl Dodecyl P-cresol· Niacinamide Vitamin B3 — barrier + brightening. ·Diethylhexyl 2,6-Naphthalate·Polymethylsilsesquioxane· Glycerin Humectant — the workhorse hydrator. ·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 Humectant — the workhorse hydrator. ·Artemisia Annua Extract·Anthemis Nobilis Flower Oil·Sodium Stearoyl Glutamate·Glyceryl Polymethacrylate·Triethoxycaprylylsilane·Pinus Sylvestris Leaf Oil·Sparassis Crispa Extract·Polyether-1· Allantoin Soothing; barrier-supportive. ·Dipropylene Glycol·Glyceryl Glucoside·Biosaccharide Gum-1· Tocopherol Vitamin E — antioxidant. ·Portulaca Oleracea Extract· Sodium Hyaluronate Hyaluronic acid — humectant. · Hyaluronic Acid Hyaluronic acid — humectant. ·Ascorbic Acid
Source: brand-published INCI. Last verified 2026. Show in detail
01 Butyl Methoxydibenzoylmethane LEGACY FILTER Avobenzone — UVA filter, needs stabilisation.
02 Homosalate LEGACY FILTER Homosalate — legacy UVB filter; endocrine literature.
03 Ethylhexyl Salicylate LEGACY FILTER Octisalate — older filter; well-tolerated.
04 Water Water
05 Butyloctyl Salicylate LEGACY FILTER Salicylate-class booster; supports avobenzone.
06 Propanediol Propanediol
07 Acrylates Copolymer Acrylates Copolymer
08 Butylene Glycol Butylene Glycol
09 Caprylyl Methicone Caprylyl Methicone
10 Polyglyceryl-3 Distearate Polyglyceryl-3 Distearate
11 Benzotriazolyl Dodecyl P-cresol Benzotriazolyl Dodecyl p-Cresol
12 Niacinamide ACTIVE Vitamin B3 — barrier + brightening.
13 Diethylhexyl 2,6-Naphthalate
14 Polymethylsilsesquioxane Polymethylsilsesquioxane
15 Glycerin ACTIVE Humectant — the workhorse hydrator.
16 Calcium Aluminum Borosilicate Calcium Aluminum Borosilicate
17 1,2-Hexanediol 1,2-Hexanediol
18 Poly C10-30 Alkyl Acrylate Poly C10-30 Alkyl Acrylate
19 Pentylene Glycol Pentylene Glycol
20 Cetearyl Alcohol Cetearyl Alcohol
21 Tromethamine Tromethamine
22 Methylpropanediol Methylpropanediol
23 Glyceryl Stearate Citrate Glyceryl Stearate Citrate
24 Betula Platyphylla Japonica Juice Japanese White Birch Juice
25 Acrylates/C10-30 Alkyl Acrylate Crosspolymer Acrylates/C10-30 Alkyl Acrylate Crosspolymer
26 Carbomer Carbomer
27 Ethylhexylglycerin ACTIVE Humectant — the workhorse hydrator.
28 Artemisia Annua Extract Sweet Wormwood Extract
29 Anthemis Nobilis Flower Oil Roman Chamomile Oil
30 Sodium Stearoyl Glutamate Sodium Stearoyl Glutamate
31 Glyceryl Polymethacrylate Glyceryl Polymethacrylate
32 Triethoxycaprylylsilane Triethoxycaprylylsilane
33 Pinus Sylvestris Leaf Oil Scotch Pine Leaf Oil
34 Sparassis Crispa Extract
35 Polyether-1
36 Allantoin ACTIVE Soothing; barrier-supportive.
37 Dipropylene Glycol Dipropylene Glycol
38 Glyceryl Glucoside Glyceryl Glucoside
39 Biosaccharide Gum-1 Biosaccharide Gum-1
40 Tocopherol ACTIVE Vitamin E — antioxidant.
41 Portulaca Oleracea Extract
42 Sodium Hyaluronate ACTIVE Hyaluronic acid — humectant.
43 Hyaluronic Acid ACTIVE Hyaluronic acid — humectant.
44 Ascorbic Acid Ascorbic Acid (Vitamin C)