ROUND LAB
Birch Moisturizing Sun Stick SPF 50A sunscreen built around Chemical sunscreen, for barrier repair and smoothing.
A sunscreen built around AHA and Chemical sunscreen, for barrier repair and hydration.
Brand price
USD 25.00 · checked 25 Sept 2026 · brand's site
Brand price
INR 499.00 · checked 28 Sept 2026 · brand's site

At a Glance

They come out differently on Fragrance-free, Silicone-free, Pore-clogger-free and Oil-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.
Mineral sunscreen1
Uses zinc oxide or titanium dioxide to absorb and scatter UV rays.
Chemical sunscreen3
Organic UV filters that absorb UV and release it as heat.
Benzophenone-3, Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate
Sunscreen3
Any ingredient acting as a UV filter.
Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

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.
Hydrating5
Boosts hydration and relieves dry, tight skin.
Betaine, Butylene Glycol, Glycerin, Propylene Glycol, Sodium Hyaluronate
Barrier Repair7
Strengthens and restores the skin's natural barrier.
Betaine, C13-14 Isoparaffin, Glycerin, Hydrogenated Polyisobutene, Lecithin, Niacinamide, Propylene Glycol
Smoothing5
Refines rough or uneven texture.
C13-14 Isoparaffin, Citric Acid, Hydrogenated Polyisobutene, Lecithin, Niacinamide

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 Dermatitis3
May feed the yeast involved in seborrheic dermatitis.

Ingredients Side-by-side

Skin Conditioning
Emollient
Methyl Methacrylate Crosspolymer
Film Forming
Skin Conditioning
Preservative
UV Filter
0 / 0
- Chemical sunscreen
- Reef-unsafe UV filter
- Sunscreen
- Sun Protection
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butyl Methoxydibenzoylmethane
Light Stabilizer, UV Absorber, UV Filter
Butyl Methoxydibenzoylmethane is a chemical UV filter.
Learn more about Butyl Methoxydibenzoylmethane →Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →
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ROUND LAB
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