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ROUND LAB

Birch Moisturizing Sunscreen UVLock Broad Spectrum SPF 45+

Last verified: April 15, 2026

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

Why This Product is Rated STOP

Birch Moisturizing Sunscreen UVLock Broad Spectrum SPF 45+ by ROUND LAB has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.

We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.

Learn more about how Million Marker scores products →

Frequently Asked Questions

Birch Moisturizing Sunscreen UVLock Broad Spectrum SPF 45+ by ROUND LAB - Non-toxic Sunscreens product rated STOP by Million Marker, free from BPA, phthalates, and parabens