round-lab ROUND LAB Birch Moisturizing Mild-up Sunscreen SPF 50+, Pa++++

Ingredients overview

Label order. Colour is our internal rating: green routine, yellow restricted or worth a look, red prohibited or high-risk, grey not yet decoded.

Ingredients are listed in label order; the order reflects the label only, not exact concentrations.

1. Water
2. Zinc Oxide
3. Cyclohexasiloxane
4. Butyloctyl Salicylate
5. Propanediol
6. Propylheptyl Caprylate
7. Isododecane
8. Caprylyl Methicone
9. Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
10. Methyl Methacrylate Crosspolymer
11. Methyl Trimethicone
12. Betula Platyphylla Japonica Juice
13. Cryptomeria Japonica Leaf Extract
14. Nelumbo Nucifera Leaf Extract
15. Saccharomyces Ferment Filtrate
16. Glyceryl Glucoside
17. Sodium Hyaluronate
18. Hyaluronic Acid
19. Glycerin
20. Butylene Glycol
21. Triethoxycaprylylsilane
22. Artemisia Annua Extract
23. Anthemis Nobilis Flower Oil
24. Pinus Sylvestris Leaf Oil
25. Ethylhexylglycerin
26. Ascorbic Acid
27. Tocopherol
28. Glyceryl Caprylate
29. Caprylyl Glycol
30. Polymethylsilsesquioxane
31. Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone
32. 1,2-Hexanediol
33. Polyglyceryl-2 Dipolyhydroxystearate
34. Disteardimonium Hectorite
35. Magnesium Sulfate

Highlights

Free of alcoholFree of parabensFree of sulfatesFree of formaldehyde releasersContains siliconesContains mineral oilContains fragranceContains EU-26 allergensContains essential oilsContains PEG

Key ingredients

ANTIPLAQUE

Water

ANTIMICROBIAL

Zinc Oxide

SKIN CONDITIONING - EMOLLIENT

CyclohexasiloxanePropylheptyl CaprylateIsododecane

HAIR CONDITIONING

Butyloctyl Salicylate

SOLVENT

Propanediol

SKIN CONDITIONING

Caprylyl Methicone

Other ingredients

Polyglyceryl-3 Polydimethylsiloxyethyl DimethiconeMethyl Methacrylate CrosspolymerMethyl TrimethiconeBetula Platyphylla Japonica JuiceCryptomeria Japonica Leaf ExtractNelumbo Nucifera Leaf ExtractSaccharomyces Ferment FiltrateGlyceryl GlucosideSodium HyaluronateHyaluronic AcidGlycerinButylene GlycolTriethoxycaprylylsilaneArtemisia Annua ExtractAnthemis Nobilis Flower OilPinus Sylvestris Leaf OilEthylhexylglycerinAscorbic AcidTocopherolGlyceryl CaprylateCaprylyl GlycolPolymethylsilsesquioxaneLauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone1,2-HexanediolPolyglyceryl-2 DipolyhydroxystearateDisteardimonium HectoriteMagnesium Sulfate

Skim through

Ingredients explained

Water

Primary solvent and base; requires preservative system to prevent microbial growth

Zinc Oxide

Physical UV filter, 30% max in EU; oily at high levels, pair with oils for feel.

Cyclohexasiloxane

Volatile cyclic silicone evaporating without residue; ensure compliance with EU limits on cyclic polydimethylsiloxanes, use octamer

Butyloctyl Salicylate

Oil-soluble exfoliating emollient; avoid for aspirin-sensitive users and high-concentration leave-on products

Propanediol

Polyol solvent at 1–5%; light feel, aids solubilization, propylene glycol alternative

Propylheptyl Caprylate

Light ester for smooth, non-volatile feel; non-comedogenic and low irritation

Isododecane

Synthetic hydrocarbon solvent providing dry, silky skin feel; high volatility, non-comedogenic, common in sunscreens and foundations, usage 5-30%.

Caprylyl Methicone

Volatile silicone, fresh feel, does not absorb oil, used in foundations and cushions.

Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

Water-soluble silicone conditioning agent providing smooth, non-greasy feel; suitable for both hair and skin

Methyl Methacrylate Crosspolymer

MMA crosspolymer for durable water-soluble film; high doses may create occlusion

Methyl Trimethicone

Methyl trimethicone, light volatile silicone; non-comedogenic, good powder compatibility.

Betula Platyphylla Japonica Juice

Birch juice NMF 0.5-5%; aqueous, check preservatives & sugars

Cryptomeria Japonica Leaf Extract

Cryptomeria leaf extract, humectant & antioxidant; water-soluble, add at low temp to preserve.

Nelumbo Nucifera Leaf Extract

Herbal extract for soothing; limited data, patch test recommended, avoid metal ions.

Saccharomyces Ferment Filtrate

Yeast ferment filtrate; humectant and conditioner. May contain peptides, prone to browning, protect from light.

Glyceryl Glucoside

Polyol humectant with light, non-sticky feel; less tacky than glycerin

Sodium Hyaluronate

Potent humectant at 0.1–2%; different MW for penetration depth, high levels may draw moisture

Hyaluronic Acid

High-water-binding humectant at 0.1-1%; high-MW for surface film, low-MW for dermal potential, check cationic compatibility.

Glycerin

Workhorse humectant at 3–10%; tacky at high levels, pair with occlusives

Butylene Glycol

Polyol humectant and solvent at 1–5%; aids solubilization, light feel

Triethoxycaprylylsilane

Silane coupling agent at 0.1-0.5%; enhances inorganic filler adhesion, trace use, low toxicity, avoid direct contact with aqueous systems.

Artemisia Annua Extract

Artemisia annua extract used as a natural fragrance ingredient; may cause sensitivity.

Anthemis Nobilis Flower Oil

Botanical oil as fragrance and conditioner; contains allergens, dilute and test for sensitization

Pinus Sylvestris Leaf Oil

Pine leaf oil, woody scent; contains peroxides and monoterpenes, may irritate sensitive skin, add at low temps and control total load.

Ethylhexylglycerin

Mild conditioner and preservative booster at 0.5–1%; reduces preservative load, smooth feel

Ascorbic Acid

Vitamin C, potent antioxidant requiring acidic environment for stability; oxidizes and discolors easily, needs light and air protection, concentration 1-10%, pure L-ascorbic acid is more irritating.

Tocopherol

Natural antioxidant (vitamin E) at 0.1–1%; prone to oxidation, store protected from light

Glyceryl Caprylate

Mild emulsifier/deodorant at 0.5-2%; polyol ester, high humectancy, low irritancy, check cationic surfactant compatibility.

Caprylyl Glycol

Polyol conditioner and preservative booster at 0.5–3%; emollient feel, often paired with 1,2-hexanediol

Polymethylsilsesquioxane

Silicone polymer for emolliency, matte effect, and suspension; used in foundations or powder suspensions, typical usage 1-5%, smooth skin feel.

Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

Silicone-modified surfactant providing conditioning and cleansing benefits; used in hair care with low irritancy.

1,2-Hexanediol

Polyol solvent and preservative booster at 1–5%; light feel, can replace some traditional preservatives

Polyglyceryl-2 Dipolyhydroxystearate

Plant-derived emulsifier, mild feel; for O/W systems, combine with co-emulsifiers

Disteardimonium Hectorite

Inorganic ionic clay thickener at 0.25-1%; water/oil/solvent systems, rheology control, avoid strong acids, may affect active release.

Magnesium Sulfate

Bulk agent at 0.1–1%; highly water-soluble, avoid high local concentration.

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