ROUND LAB Birch Juice Moisturizing Sun Serum SPF 50 — 1.69 fl oz, Hyaluronic Acid, No White Cast

ROUND LAB Birch Juice Moisturizing Sun Serum SPF 50 is a featherlight, serum-texture sunscreen that hydrates with hyaluronic acid and vegan PDRN while protecting skin from UV rays without a white cast.

This sunscreen blends skincare and sun protection into one step. With SPF 50 PA++++, 73% hydrating essence and fast-absorbing hyaluronic acid, the formula is made to feel weightless on skin while delivering daily UV defense. It's fragrance-free and designed to sit comfortably under makeup, making it a convenient addition to everyday routines and travel kits.

How does this sun serum feel on the skin?

The texture is a watery, serum-like emulsion that absorbs quickly and leaves a non-greasy, residue-free finish. You should notice no heavy film or tackiness after application, which makes it suitable for layering under other products or makeup.

• Lightweight, airy texture—like a hydrating serum
• Fast absorption with non-sticky finish
• No visible white cast on most skin tones
• Comfortable for use around the eye area

What skincare benefits does the formula provide besides sun protection?

This product pairs UV filters with skin-conditioning ingredients to support hydration and surface smoothness. Vegan PDRN and hyaluronic acid help maintain moisture and the appearance of elasticity, so the sunscreen also functions as a hydrating skincare step.

• 73% hydrating essence base for immediate moisture
• Hyaluronic acid for multi-layer hydration
• Vegan PDRN to support skin revitalization and texture
• Fragrance-free formula for sensitive skin compatibility

Will it work under makeup and during active days outdoors?

Yes — the serum is formulated to layer smoothly under foundation and BB creams without pilling. Its SPF 50 protection and breathable finish make it practical for everyday outdoor activities and travel, while remaining comfortable during long wear.

• Blends well under makeup without balling up
• Compact 1.69 fl oz size for travel and daily carry
• High SPF rating for reliable daytime protection
• Non-greasy finish suitable for active use

How should I apply this and will it remove easily?

Use the sun serum as the final step in your morning skincare routine after moisturizer. Gently pat an even layer over face and neck; reapply as needed per sun exposure. It washes off with regular cleansers at the end of the day.

• Apply after moisturizer, before makeup
• Pat gently to ensure even coverage
• Safe for delicate areas near the eyes
• Removes with standard facial cleansers

Who is this for: ROUND LAB Birch Juice Moisturizing Sun Serum is aimed at anyone who prefers a lightweight, skincare-first sunscreen — especially those with normal to combination or dehydrated skin who want high SPF protection without heaviness or fragrance. It's a good fit for people who layer makeup, travel frequently, or want an easy, hydrating sunscreen step that supports skin texture over time.

Ingredients

Water, Butyloctyl Salicylate, Dipropylene Glycol, Benzotriazolyl Dodecyl p-Cresol, Ethylhexyl Methoxycrylene, Vinyl Dimethicone, Tripropylene Glycol, Sorbitol, 1,2-Hexanediol, Silica, Diethylhexyl 2,6-Naphthalate, Aminomethyl Propanol, Betula Platyphylla Japonica Juice, Diglycerin, Behenyl Alcohol, Pentylene Glycol, Polyglyceryl-3 Methylglucose Distearate, Panthenol, Butylene Glycol, Poly C10-30 Alkyl Acrylate, Dimethiconol, Polyphenylsilsesquioxane, Dimethicone/Vinyl Dimethicone Crosspolymer, Tromethamine, Hydroxyacetophenone, Polyacrylic Acid, Palmitic Acid, Stearic Acid, Artemisia Annua Extract, Methylpropanediol, Polyether-1, Sphingomonas Ferment Extract, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Bacillus Ferment, Sodium Hyaluronate, Glycerin, Anthemis Nobilis Flower Oil, Pinus Sylvestris Leaf Oil, Aloe Barbadensis Leaf Extract, Dioscorea Japonica Root Extract, Ethylhexylglycerin, Laminaria Japonica Extract, Ulmus Davidiana Root Extract, Viola Mandshurica Flower Extract, Glyceryl Glucoside, Arginine, Caprylic Acid, Cetearyl Alcohol, Cetearyl Olivate, Sorbitan Olivate, Hydrogenated Lecithin, Betulin, Carbomer, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate, Sodium DNA, Hyaluronic Acid, Glycine, Glutamic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Potassium Hyaluronate