ROUND LAB
Birch Moisturizing SerumArencia
PDRN Booster ShotA serum built around Hyaluronic acid and Vitamin C, for hydration and barrier repair.
A serum built around Niacinamide and Panthenol, for hydration and barrier repair.
Brand price
USD 26.35 · checked 25 Sept 2026 · brand's site
Brand price
USD 24.00 · checked 26 Sept 2026 · brand's site

At a Glance

They come out differently on Silicone-free, Pore-clogger-free and Cruelty-free; those rows are shaded. Tap any answer to see why.

Key Ingredients

Hyaluronic acid2
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic acid3
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Hyaluronic Acid, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer

Benefits

Hydrating12
Boosts hydration and relieves dry, tight skin.
Beta-Glucan, Butylene Glycol, Caprylic/Capric Triglyceride, Dipotassium Glycyrrhizate, Fructooligosaccharides, Glycerin, Glyceryl Glucoside, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Polyglycerin-3, Sodium Hyaluronate, Tocopherol
Barrier Repair7
Strengthens and restores the skin's natural barrier.
Aloe Barbadensis Flower Extract, Avena Sativa Kernel Extract, Caprylic/Capric Triglyceride, Cyclohexasiloxane, Glycerin, Laminaria Japonica Extract, Tocopherol
Reduces Irritation3
Eases discomfort and supports skin resilience.
Avena Sativa Kernel Extract, Beta-Glucan, Dipotassium Glycyrrhizate
Hydrating16
Boosts hydration and relieves dry, tight skin.
Acetyl Hexapeptide-8, Butylene Glycol, Caprylic/Capric Triglyceride, Ceramide NP, Collagen, Glycerin, Glyceryl Acrylate/Acrylic Acid Copolymer, Glyceryl Glucoside, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Panthenol, Polyglycerin-3, Propanediol, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer
Barrier Repair11
Strengthens and restores the skin's natural barrier.
Caprylic/Capric Triglyceride, Ceramide NP, Cetearyl Olivate, Cetyl Ethylhexanoate, Glycerin, Hydrogenated Polydecene, Hydrolyzed Viola Tricolor Extract, Niacinamide, Panthenol, Sodium Polyacrylate, Tripeptide-1
Reduces Irritation2
Eases discomfort and supports skin resilience.

Concerns

May Worsen Seborrheic Dermatitis1
May feed the yeast involved in seborrheic dermatitis.
May Worsen Seborrheic Dermatitis13
May feed the yeast involved in seborrheic dermatitis.
Acetyl Hexapeptide-8, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ceramide NP, Cetearyl Olivate, Cetyl Ethylhexanoate, Hydrogenated Lecithin, Palmitoyl Hexapeptide-12, Palmitoyl Pentapeptide-4, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5, Sodium Acetylated Hyaluronate, Sorbitan Olivate

Ingredients Side-by-side

Water (in both products)
Skin Conditioning
1,2-Hexanediol (in both products)
Skin Conditioning
Betula Platyphylla Japonica Juice
Skin Conditioning
Glyceryl Glucoside (in both products)
Humectant
Hydrolyzed Hyaluronic Acid (in both products)
Humectant
Water (in both products)
Skin Conditioning
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Emollient
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water
Antiplaque, Skin Conditioning, Solvent
Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water
Learn more about Water →Methylpropanediol
Solvent
2-Methyl-1,3-propanediol
Learn more about Methylpropanediol →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 →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Polyglycerin-3
Humectant
Triglycerol
Learn more about Polyglycerin-3 →Caprylic/Capric Triglyceride
Fragrance, Perfuming, Occlusive, Solvent
Caprylic/Capric Triglyceride is the mixed triester of glycerin and caprylic and capric acids.
Learn more about Caprylic/Capric Triglyceride →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Glyceryl Glucoside
Humectant, Skin Conditioning
Glyceryl Glucoside is the product of the reaction of Glucose and Glycerin
Learn more about Glyceryl Glucoside →Hydrolyzed Hyaluronic Acid
Hair Conditioning, Humectant, Skin Conditioning
Hydrolyzed Hyaluronic Acid is the hydrolysate of Hyaluronic Acid derived by acid, enzyme or other method of hydrolysis
Learn more about Hydrolyzed Hyaluronic Acid →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 →
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