
Image: Rejuran
Rejuran
Dual Effect Ampoule
A serum built around Niacinamide and Hyaluronic acid, for hydration and barrier repair.
Brand price
USD 55.00 · checked 28 Sept 2026 · on the brand's site
From the brand
What the brand says about this product. Our ingredient analysis follows below.
How to use
After cleansing and toning, apply 3–5 drops of the ampoule to clean fingertips and gently massage onto your face, neck, and décolletage (avoiding direct contact with eyes). Allow the serum to fully absorb before following up with your preferred moisturizer and sunscreen. For best results, use once or twice daily. The product can be applied to the face, neck, and back of the hands.
What's inside
Ingredients List
5 trigger at least one check · 35 trigger none
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Key Ingredients
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating9
Boosts hydration and relieves dry, tight skin.
Aloe Barbadensis Leaf Juice, Butylene Glycol, Ceramide NP, Glycerin, PEG-6, Sodium Hyaluronate, Squalane, Trehalose, Urea
Barrier Repair9
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Ceramide NP, Cholesterol, Glycerin, Glycyrrhiza Glabra Root Extract, Niacinamide, Oleic Acid, Squalane, Vaccinium Angustifolium Fruit Extract
Reduces Irritation4
Eases discomfort and supports skin resilience.
Aloe Barbadensis Leaf Juice, Bisabolol, Glycyrrhiza Glabra Root Extract, Vaccinium Angustifolium Fruit Extract
Redness Reducing4
Soothes visible redness and calms irritation.
Bisabolol, Glycyrrhiza Glabra Root Extract, Niacinamide, Vaccinium Angustifolium Fruit Extract
Smoothing6
Refines rough or uneven texture.
Caprylyl Glycol, Cholesterol, Glycyrrhiza Glabra Root Extract, Niacinamide, Oleic Acid, Squalane
Brightening3
Restores radiance to dull, tired skin.
Dark Spots3
Fades dark spots for a more even tone.
Anti-Pollution4
Helps defend against airborne pollutants.
Arbutin, Glycerin, Tocopheryl Acetate, Vaccinium Angustifolium Fruit Extract
Concerns
May Worsen Seborrheic Dermatitis5
May feed the yeast involved in seborrheic dermatitis.
Ceramide NP, Hydrogenated Lecithin, Inulin Lauryl Carbamate, Oleic Acid, Polysorbate 20
May Worsen Keratosis Pilaris2
May clog follicles or strip skin prone to keratosis pilaris.
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 →PEG-6
Humectant, Solvent
.Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, (6 mol EO average molar ratio)
Learn more about PEG-6 →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 →Rubus Fruticosus Leaf Extract
Fragrance, Skin Conditioning
Rubus Fruticosus Leaf Extract is an extract of the leaves of the Blackberry, Rubus fruticosus L., Rosaceae
Learn more about Rubus Fruticosus Leaf Extract →Dipropylene Glycol
Fragrance, Perfuming, Solvent, Viscosity Controlling
1,1'-Oxydipropan-2-ol; Oxydipropan-2-ol; Hydroxypropyloxypropanol
Learn more about Dipropylene Glycol →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 →Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Vaccinium Angustifolium Fruit Extract
Skin Protecting, Soothing
Vaccinium Angustifolium Extract is an extract of the fruit of the Blueberry, Vaccinium angustifolium, Ericaceae
Learn more about Vaccinium Angustifolium Fruit Extract →Aloe Barbadensis Leaf Juice
Skin Conditioning
Aloe Barbadensis Leaf Juice is the juice expressed from the leaves of the aloe, Aloe barbadensis, Liliaceae
Learn more about Aloe Barbadensis Leaf Juice →
Dupes
- Rejuran Turnover Ampoule85% match
- Rejuran Moisture Treatment Ampoule77% match
- Rejuran Pore Tightening Ampoule70% match
- Beauty of Joseon Pore Firming Serum : Red Bean PDRN™ + Peptide69% match
- Anua Rice Ceramide 7 Hydrating Barrier Serum67% match
- innisfree Black Tea Youth Enhancing Serum67% match