Image: roundlab.com
ROUND LAB
Birch Juice Moisturizing Sun Serum SPF 50
A sunscreen built around Panthenol and Hyaluronic acid, for hydration and barrier repair.
Brand price
USD 24.99 · checked 25 Sept 2026 · on the brand's site
From the brand
What the brand says about this product. Our ingredient analysis follows below.
The brand recommends it for
- Dry skin
- Sensitive skin
- Redness & rosacea
- Fine lines & wrinkles
How to use
Apply liberally 15 minutes before sun exposure. Reapply at least every two hours. Use a water-resistant sunscreen if swimming or sweating Sun protection measures. Spending time in the sun increases your risk of skin cancer and early skin aging. To decrease this risk, regularly use a sunscreen with a broad spectrum SPF of 15 or higher and other sun protection measures including: 1) Limit time in the sun, especially from 10 am to 2 pm. 2) Wear long-sleeve shirts, pants, hats, and sunglasses. Children under 6 months of age: Ask a doctor
Caution
For external use only. Do not use on damaged or broken skin. Stop use and ask a doctor if rash occurs. When using this product, keep out of eyes. Rinse with water to remove. Keep out of reach of children. If product is swallowed, get medical help or contact a Poison Control Center right away.
What's inside
Ingredients List
20 trigger at least one check · 44 trigger none
- Fatty alcohols (Malassezia)
- May Worsen Seborrheic Dermatitis
Key Ingredients
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Hyaluronic acid3
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic Acid, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer
Benefits
Hydrating16
Boosts hydration and relieves dry, tight skin.
Aloe Barbadensis Leaf Extract, Butylene Glycol, Diglycerin, Dimethiconol, Glutamic Acid, Glycerin, Glyceryl Glucoside, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Panthenol, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sorbitol, Stearic Acid, Tripropylene Glycol
Barrier Repair11
Strengthens and restores the skin's natural barrier.
Aloe Barbadensis Leaf Extract, Behenyl Alcohol, Cetearyl Alcohol, Cetearyl Olivate, Diethylhexyl 2,6-Naphthalate, Dimethiconol, Glycerin, Laminaria Japonica Extract, Palmitic Acid, Panthenol, Stearic Acid
Smoothing7
Refines rough or uneven texture.
Aloe Barbadensis Leaf Extract, Behenyl Alcohol, Cetearyl Alcohol, Cetearyl Olivate, Diethylhexyl 2,6-Naphthalate, Dimethiconol, Palmitic Acid
Antioxidant3
Shields skin from free radical damage.
Hydroxyacetophenone, Tripropylene Glycol, Viola Mandshurica Flower Extract
Sun Protection2
Filters UV to help prevent sun damage.
Benzotriazolyl Dodecyl P-Cresol, Diethylhexyl 2,6-Naphthalate
Anti-Pollution5
Helps defend against airborne pollutants.
Glycerin, Hydroxyacetophenone, Laminaria Japonica Extract, Tripropylene Glycol, Viola Mandshurica Flower Extract
Concerns
May Worsen Seborrheic Dermatitis14
May feed the yeast involved in seborrheic dermatitis.
Behenyl Alcohol, Butyloctyl Salicylate, Cetearyl Alcohol, Cetearyl Olivate, Hydrogenated Lecithin, Palmitic Acid, Poly C10-30 Alkyl Acrylate, Polyacrylate Crosspolymer-6, Polyglyceryl-3 Methylglucose Distearate, Sodium Acetylated Hyaluronate, Sodium Stearoyl Glutamate, Sorbitan Olivate, Sphingomonas Ferment Extract, Stearic Acid
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Irritation3
May cause stinging, redness or sensitivity.
Anthemis Nobilis Flower Oil, Caprylic Acid, Pinus Sylvestris Leaf Oil
May Worsen Eczema2
May worsen itching or irritation for eczema-prone skin.
May Worsen Rosacea2
Can trigger flare-ups in rosacea-prone skin.
Ingredients Explained
Click on any ingredient to learn more about it
Water
Antiplaque, Skin Conditioning, Solvent
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Learn more about Water →Butyloctyl Salicylate
Hair Conditioning, Skin Conditioning, Solvent
Butyloctyl Salicylate isn't fungal acne safe.
Learn more about Butyloctyl Salicylate →Dipropylene Glycol
Fragrance, Perfuming, Solvent, Viscosity Controlling
1,1'-Oxydipropan-2-ol; Oxydipropan-2-ol; Hydroxypropyloxypropanol
Learn more about Dipropylene Glycol →Benzotriazolyl Dodecyl P-Cresol
UV Absorber
Phenol, 2-(2H-Benzotriazol-2-yl)-6-Dodecyl-4-Methyl-, Branched and Linear
Learn more about Benzotriazolyl Dodecyl P-Cresol →Ethylhexyl Methoxycrylene
Skin Conditioning
2-Propenoic acid, 2-cyano-3-(4-methoxyphenyl)-3-phenyl-, 2-ethylhexyl ester
Learn more about Ethylhexyl Methoxycrylene →Vinyl Dimethicone
Viscosity Controlling
Vinyl Dimethicone is a silicone.
Learn more about Vinyl Dimethicone →Tripropylene Glycol
Antioxidant, Emulsion Stabilising, Humectant
Propanol, [(1-methyl-1,2-ethanediyl)bis(oxy)]bis-
Learn more about Tripropylene Glycol →Sorbitol
Fragrance, Humectant, Perfuming, Skin Conditioning
Sorbitol is the hexahydric alcohol that conforms to the formula
Learn more about Sorbitol →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Silica
Abrasive, Absorbent, Anticaking, Bulking, Opacifying, Viscosity Controlling
Silicon dioxide
Learn more about Silica →
Dupes
- Goodal Heartleaf Soothing Moisture Sunscreen OTC Version66% match
- Medicube PDRN Hydrating UV Sun Serum64% match
- Wellage Real Hyaluronic Blue Sun Cream64% match
- Rejuran Skin Barrier Sunscreen62% match
- ROUND LAB Birch Moisturizing Sunscreen UVLock SPF 45 Broad Spectrum61% match