ROUND LAB
Birch Moisturizing Sun Stick SPF 50A sunscreen built around Chemical sunscreen, for barrier repair and smoothing.
A sunscreen built around Chemical sunscreen, for barrier repair and smoothing.
Brand price
USD 25.00 · checked 25 Sept 2026 · brand's site
Brand price
USD 23.00 · checked 25 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free and Cruelty-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Chemical sunscreen4
Organic UV filters that absorb UV and release it as heat.
Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Homosalate, Octocrylene
Sunscreen4
Any ingredient acting as a UV filter.
Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Homosalate, Octocrylene
Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Chemical sunscreen4
Organic UV filters that absorb UV and release it as heat.
Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Homosalate, Octocrylene
Sunscreen4
Any ingredient acting as a UV filter.
Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Homosalate, Octocrylene
Benefits
Hydrating8
Boosts hydration and relieves dry, tight skin.
Aloe Barbadensis Leaf Extract, Butylene Glycol, Dimethicone, Dipotassium Glycyrrhizate, Glycerin, Glyceryl Glucoside, Hyaluronic Acid, Sodium Hyaluronate
Barrier Repair16
Strengthens and restores the skin's natural barrier.
Allantoin, Aloe Barbadensis Leaf Extract, Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Camellia Japonica Seed Oil, Copernicia Cerifera Wax, Diethylhexyl Carbonate, Diisostearyl Malate, Dimethicone, Ethylhexyl Isononanoate, Glycerin, Glyceryl Caprylate, Isopropyl Palmitate, Laminaria Japonica Extract, Phenethyl Benzoate, Silica Dimethyl Silylate, Synthetic Wax
Reduces Irritation2
Eases discomfort and supports skin resilience.
Hydrating4
Boosts hydration and relieves dry, tight skin.
Barrier Repair12
Strengthens and restores the skin's natural barrier.
Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Camellia Japonica Seed Oil, Copernicia Cerifera Wax, Diethylhexyl Carbonate, Diisostearyl Malate, Dimethicone, Dimethiconol, Ethylhexyl Isononanoate, Isopropyl Palmitate, Panthenol, Silica Dimethyl Silylate, Synthetic Wax
Smoothing10
Refines rough or uneven texture.
Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Camellia Japonica Seed Oil, Copernicia Cerifera Wax, Diethylhexyl Carbonate, Diisostearyl Malate, Dimethicone, Dimethiconol, Ethylhexyl Isononanoate, Isopropyl Palmitate, Silica Dimethyl Silylate
Concerns
May Worsen Seborrheic Dermatitis7
May feed the yeast involved in seborrheic dermatitis.
Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Butyloctyl Salicylate, Camellia Japonica Seed Oil, Candelilla Wax Esters, Copernicia Cerifera Wax, Diisostearyl Malate, Isopropyl Palmitate
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Seborrheic Dermatitis7
May feed the yeast involved in seborrheic dermatitis.
Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Butyloctyl Salicylate, Camellia Japonica Seed Oil, Candelilla Wax Esters, Copernicia Cerifera Wax, Diisostearyl Malate, Isopropyl Palmitate
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
Skin Conditioning
Octocrylene (in both products)
UV Filter
0-1 / —
- Chemical sunscreen
- Reef-unsafe UV filter
- Sunscreen
- Sun Protection
Diethylhexyl Carbonate (in both products)
Emollient
Methyl Methacrylate Crosspolymer (in both products)
Film Forming
Diethylhexyl Carbonate (in both products)
Emollient
Methyl Methacrylate Crosspolymer (in both products)
Film Forming
Octocrylene (in both products)
UV Filter
0-1 / —
- Chemical sunscreen
- Reef-unsafe UV filter
- Sunscreen
- Sun Protection
Butyloctyl Salicylate (in both products)
Skin Conditioning
- Fatty alcohols (Malassezia)
- May Worsen Seborrheic Dermatitis
Isopropyl Palmitate (in both products)
Emollient
4 / 1
- Esters listed as pore-clogging in animal testing only
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Homosalate
Fragrance, UV Absorber, UV Filter
Homosalate is a chemical UV filter.
Learn more about Homosalate →Octocrylene
Light Stabilizer, UV Absorber, UV Filter
Octocrylene is a UV filter banned by Palau over coral-reef concerns.
Learn more about Octocrylene →Ethylhexyl Salicylate
Light Stabilizer, UV Absorber, UV Filter
Ethylhexyl Salicylate is a chemical UV filter.
Learn more about Ethylhexyl Salicylate →Butyl Methoxydibenzoylmethane
Light Stabilizer, UV Absorber, UV Filter
Butyl Methoxydibenzoylmethane is a chemical UV filter.
Learn more about Butyl Methoxydibenzoylmethane →Diethylhexyl Carbonate
Skin Conditioning, Emollient
Carbonic Acid, Bis(2- Ethylhexyl) Ester
Learn more about Diethylhexyl Carbonate →Dimethicone
Antifoaming, Skin Conditioning, Emollient, Skin Protecting
Dimethicone is a silicone.
Learn more about Dimethicone →Methyl Methacrylate Crosspolymer
Film Forming
2-Propenoic acid, 2-methyl-, 1,2-ethanediyl ester, polymer with methyl 2-methyl-2-propenoate
Learn more about Methyl Methacrylate Crosspolymer →Synthetic Wax
Abrasive, Binding, Emulsion Stabilising, Fragrance, Viscosity Controlling
Synthetic Wax is a hydrocarbon wax derived generally through Fischer-Tropsch or ethylene polymerization processes.
Learn more about Synthetic Wax →Diphenylsiloxy Phenyl Trimethicone
Antifoaming, Hair Conditioning, Skin Conditioning
Diphenylsiloxy Phenyl Trimethicone is a silicone.
Learn more about Diphenylsiloxy Phenyl Trimethicone →Butyloctyl Salicylate
Hair Conditioning, Skin Conditioning, Solvent
Butyloctyl Salicylate isn't fungal acne safe.
Learn more about Butyloctyl Salicylate →
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ROUND LAB
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ROUND LAB
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