K-beauty, read closely — ingredients, textures, and the choices between them.
Dear, Klairs
A 35mL serum with 5% ascorbic acid, the pure vitamin C form. Apply after toner and before moisturizer. The formula also includes orange and lavender oils, and the brand gives specific storage and color-change guidance.
| Pack | 35mL dropper bottle |
|---|---|
| Vitamin C form | Ascorbic acid · 5% |
| Starting amount | 1–2 drops · introduce gradually |
| Storage | Tightly closed · cool · dark |
Consider it for: You want a 5% ascorbic acid serum and can keep it tightly closed away from heat and light. If you avoid essential oils, compare its full formula before choosing it for sensitive skin.
Based on brand information and published sources, not a hands-on review.
01 / TEXTURE
A liquid serum in a clear dropper bottle. The verified studio photo identifies the 35mL pack; it is a product photograph rather than a skin-application or oxidation test.
03 / YOUR ROUTINE
After cleansing and toner, start with one or two drops and pat gently, then follow with moisturizer. The detailed brand directions also give three or four drops as a general amount. If new to vitamin C, begin a few times a week. Use sunscreen during the day. Rinse and stop if it stings or burns.
Orange oil, lavender oil and limonene are listed. Keep tightly closed in a cool, dark place. The brand advises replacement if the serum becomes deep orange; stop use if stinging or burning occurs.
CHOOSING THIS FORMULA
The official page identifies 5% ascorbic acid. A serum containing a small amount of an ethylated vitamin C derivative has a different formula; the shared word vitamin does not make their concentrations interchangeable. This product also contains essential oils, which matters independently of its vitamin C percentage.
Air, light and heat can deepen the color, so close the bottle promptly and store it in a cool, dark place. The brand recommends replacement once it becomes deep orange. A bottle photograph cannot show whether the product delivered to you is fresh; inspect your own serum and follow the current pack guidance.
The official page lists a twelve-month period after opening while recommending use within six months for vitamin C performance. Those statements serve different purposes. Record when you open the bottle and follow the shorter performance advice if that is your reason for choosing it.
FORMULA NOTES
| Ingredient | Role or purpose | Formula detail |
|---|---|---|
| Ascorbic acid | Pure vitamin C | 5% disclosed |
| Centella extract | Botanical skin-conditioning ingredient | Listed in the official formula |
| Orange · lavender oils · limonene | Fragrance-related ingredients | Not a fragrance-free formula |
Official ingredient list ↗. Ingredient roles explain the formula. See the sourced product information and evidence limits below.
BRAND-REPORTED EVIDENCE
| Information | Published detail | Source context |
|---|---|---|
| Vitamin C | 5% ascorbic acid | Disclosed formula concentration |
| Sensitive-skin irritation testing | Test completion reported | Official product information |
The 5% figure describes vitamin C concentration. Klairs also reports an irritation test, without publishing scores or participant counts.
Official formula and testing statements ↗ON THE LABEL
Aqua (Water), Propylene Glycol, Ascorbic Acid, Hydroxyethylcellulose, Citrus Junos Fruit Extract, Centella Asiatica Extract, Polysorbate 60, Illicium Verum (Anise) Fruit Extract, Chaenomeles Sinensis Fruit Extract, Paeonia Suffruticosa Root Extract, Brassica Oleracea Italica (Broccoli) Extract, Nelumbium Speciosum Flower Extract, Citrus Paradisi (Grapefruit) Fruit Extract, Scutellaria Baicalensis Root Extract, Butylene Glycol, Glycerin, Citrus Aurantium Dulcis (Orange) Oil, 1,2-Hexanediol, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Disodium EDTA, Lavandula Angustifolia (Lavender) Oil, Camellia Sinensis Callus Culture Extract, Polysorbate 80, Disodium Phosphate, Sorbitan Oleate, Chrysanthellum Indicum Extract, Asarum Sieboldii Root Extract, Quercus Mongolica Leaf Extract, Persicaria Hydropiper Extract, Larix Europaea Wood Extract, Magnolia Obovata Bark Extract, Rheum Palmatum Root Extract, Corydalis Turtschaninovii Root Extract, Coptis Chinensis Root Extract, Sodium Phosphate, Lysine HCl, Sodium Ascorbyl Phosphate, Acetyl Methionine, Theanine, Proline, Lecithin, Acetyl Glutamine, Bacillus/Folic Acid/Soybean Ferment Extract, Sodium Hyaluronate, sh-Oligopeptide-1, sh-Oligopeptide-2, sh-Polypeptide-1, sh-Polypeptide-11, sh-Polypeptide-9, Caprylyl Glycol, Limonene
Original ingredient list ↗COMMON QUESTIONS
No. The official ingredient list includes orange oil, lavender oil and limonene.
Official product reference ↗The official directions allow daytime use with sunscreen. Introduce it gradually if you are new to vitamin C.
Official product reference ↗The page gives one or two drops as a starting amount and three or four drops in its general directions. Begin with the smaller starting amount rather than assume more is better.
Official product reference ↗RELATED PRODUCT OPTIONS
04 / THE NEXT STEP
Check the size, full ingredient list, price, stock and delivery to your address on the seller’s page.
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Product details follow the linked global / US sources. Check the label sold in your country for ingredients and directions.
Our research and advertising policyYOUR NEXT STEP
Dear, Klairs · Freshly Juiced Vitamin Drop · 35mL
US / global product information
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Your notes and saved routine stay in this browser. They are private records, not public reviews or a test of a product’s effects.
Calculations use complete ingredient lists for the stated market and product version. Listed names do not establish concentrations, equivalent effects or allergy suitability.
Explore products in the same use group with overlapping ingredient lists, then compare their texture, directions and ingredient differences.
Candidates share the page’s language, market context and use group and have a complete ingredient list available. Names are normalized for spacing and reviewed synonyms; duplicate names count once.
The default order divides shared names by all distinct names across both lists: 10 shared names out of 20 distinct names gives 10 ÷ 20. You can instead order by the number of shared names. Up to five candidates are shown.
Ingredient overlap does not establish equivalent effects or a cheaper substitute. Concentrations, ingredient order, finished-product tests and feel are not part of this calculation. Missing lists are not treated as missing ingredients.
Beauty of Joseon
8 shared · 44 only in this product · 20 only in candidate
72 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
medicube
9 shared · 43 only in this product · 31 only in candidate
83 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-31
COSRX
9 shared · 43 only in this product · 35 only in candidate
87 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
Anua
8 shared · 44 only in this product · 27 only in candidate
79 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-24
medicube
9 shared · 43 only in this product · 37 only in candidate
89 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-31
The products below share listed ingredient names. This does not establish equal concentrations or effects.
Aqua (Water), Propylene Glycol, Ascorbic Acid, Hydroxyethylcellulose, Citrus Junos Fruit Extract, Centella Asiatica Extract, Polysorbate 60, Illicium Verum (Anise) Fruit Extract, Chaenomeles Sinensis Fruit Extract, Paeonia Suffruticosa Root Extract, Brassica Oleracea Italica (Broccoli) Extract, Nelumbium Speciosum Flower Extract, Citrus Paradisi (Grapefruit) Fruit Extract, Scutellaria Baicalensis Root Extract, Butylene Glycol, Glycerin, Citrus Aurantium Dulcis (Orange) Oil, 1,2-Hexanediol, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Disodium EDTA, Lavandula Angustifolia (Lavender) Oil, Camellia Sinensis Callus Culture Extract, Polysorbate 80, Disodium Phosphate, Sorbitan Oleate, Chrysanthellum Indicum Extract, Asarum Sieboldii Root Extract, Quercus Mongolica Leaf Extract, Persicaria Hydropiper Extract, Larix Europaea Wood Extract, Magnolia Obovata Bark Extract, Rheum Palmatum Root Extract, Corydalis Turtschaninovii Root Extract, Coptis Chinensis Root Extract, Sodium Phosphate, Lysine HCl, Sodium Ascorbyl Phosphate, Acetyl Methionine, Theanine, Proline, Lecithin, Acetyl Glutamine, Bacillus/Folic Acid/Soybean Ferment Extract, Sodium Hyaluronate, sh-Oligopeptide-1, sh-Oligopeptide-2, sh-Polypeptide-1, sh-Polypeptide-11, sh-Polypeptide-9, Caprylyl Glycol, Limonene
Ingredient source ↗ · 2026-10-23 · US product listing
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