K-beauty, read closely — ingredients, textures, and the choices between them.
EQQUALBERRY
A 30mL brightening serum with 4% niacinamide and 40% acerola fruit water. The listed vitamin C derivative, 3-O-Ethyl Ascorbic Acid, is 10ppm; the fruit-water percentage is not a 40% vitamin C concentration.
| Pack | 30mL dropper bottle |
|---|---|
| Niacinamide | 40,000ppm = 4% |
| Acerola fruit water | 400,000ppm = 40% |
| Vitamin C derivative | 3-O-Ethyl Ascorbic Acid · 10ppm |
Consider it for: You want a niacinamide-centered serum for uneven-looking tone and want to compare the actual disclosed amounts, rather than choose by the word vitamin alone.
Based on brand information and published sources, not a hands-on review.
01 / TEXTURE
A golden-yellow serum in a dropper bottle. The brand’s staged swatch shows its color and spread. Color does not establish vitamin C concentration, and this photograph is not a viscosity measurement.
03 / YOUR ROUTINE
After cleansing, apply evenly over the face and pat gently until absorbed, then finish with cream. The official page allows morning and evening use. Use sunscreen during the day.
Avoid contact with eyes and broken skin, and stop use if irritation develops. Keep away from direct light. The official before-and-after illustrations are marked as unrelated to the clinical results.
CHOOSING THIS FORMULA
No. The 40% claim refers to acerola fruit water, a fruit-derived ingredient. The formula separately lists niacinamide at 4% and 3-O-Ethyl Ascorbic Acid at 10ppm, equivalent to 0.001%. These quantities describe different ingredients and cannot be substituted for one another.
The official page reports separate changes in dark-spot appearance and surface melanin uniformity. They are different endpoints: a uniformity percentage is not a percentage of dark spots removed. The brand also reports a tone result without a clearly attached measurement time, so it is not included as another four-week result here.
FORMULA NOTES
| Ingredient | Role or purpose | Formula detail |
|---|---|---|
| Niacinamide | Tone-focused vitamin B3 ingredient | 4% disclosed |
| Acerola fruit water | Fruit-derived water ingredient | 40% · not 40% vitamin C |
| 3-O-Ethyl Ascorbic Acid | Vitamin C derivative | 10ppm = 0.001% |
| Arbutin · tranexamic acid | Additional tone-focused ingredients | Individual concentrations not disclosed |
Official ingredient list ↗. Ingredient roles explain the formula. Product-specific measurements appear below.
BRAND-REPORTED EVIDENCE
| Outcome | Reported result | Timing / context |
|---|---|---|
| Dark-spot appearance | −3.12% | 4 weeks |
| Surface melanin uniformity | +19.11% | 4 weeks |
Brand-reported Intertek Testing Services Korea Ltd. study CRS-24-S0086-0334-E; study window August 7–November 21, 2024. The page does not disclose sample size, comparator or measurement method. Displayed before-and-after illustrations are expressly unrelated to these clinical results.
Brand results and available test conditions ↗ON THE LABEL
Malpighia Glabra (Acerola) Fruit Water (400,000 ppm), Aqua/Water/Eau, Butylene Glycol, Glycerin, Cetyl Ethylhexanoate, Niacinamide (40,000 ppm), 1,2-Hexanediol, Arbutin, Hydrogenated Lecithin, Pentaerythrityl Tetrabehenate, Diethoxyethyl Succinate, Betaine, Ceramide NP, Hydroxyethyl Urea, Caprylic/Capric Triglyceride, Melia Azadirachta Leaf Extract, Cetearyl Alcohol, Squalane, Melia Azadirachta Flower Extract, Panthenol (2,940 ppm), Curcuma Longa (Turmeric) Root Extract, Tocopherol (2,000 ppm), Carbomer, Butyrospermum Parkii (Shea) Butter, Tromethamine, Xanthan Gum, Allantoin, Ethylhexylglycerin, 2,3-Butanediol, Ocimum Sanctum Leaf Extract, Disodium EDTA, Sodium Hyaluronate, Sodium Carboxymethyl Beta-Glucan, Corallina Officinalis Extract, Malpighia Glabra (Acerola) Fruit Extract, Glyceryl Stearate, Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Potassium Hyaluronate, Rubus Fruticosus (Blackberry) Fruit Extract, Vaccinium Macrocarpon (Cranberry) Fruit Extract, Vaccinium Angustifolium (Blueberry) Fruit Extract, Rubus Idaeus (Raspberry) Fruit Extract, Sambucus Nigra Fruit Extract, Ceramide NS, Ceramide AS, Ceramide AP, Cholesterol, Ferulic Acid, Glutathione, Tranexamic Acid, Adenosine, 3-O-Ethyl Ascorbic Acid (10 ppm), Pentylene Glycol, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Ceramide EOP
Original ingredient list ↗COMMON QUESTIONS
Yes. The official directions allow morning and evening use and recommend sunscreen during daytime use.
Official product reference ↗No. That figure concerns surface melanin uniformity. Dark-spot appearance is a separate reported endpoint with a 3.12% change.
Official product reference ↗The listed vitamin C ingredient is 3-O-Ethyl Ascorbic Acid, a derivative. Do not compare its 10ppm amount as if it were a high-percentage L-ascorbic acid serum.
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
EQQUALBERRY · Vitamin Illuminating Serum · 30mL
US / global product information
Keep this product selected while you compare another option. Read the listed differences before checking the seller’s current terms.
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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.
numbuzin
27 shared · 32 only in this product · 20 only in candidate
79 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
Anua
21 shared · 38 only in this product · 13 only in candidate
72 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
haruharu wonder
20 shared · 39 only in this product · 20 only in candidate
79 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
Anua
22 shared · 37 only in this product · 29 only in candidate
88 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-24
Anua
19 shared · 40 only in this product · 26 only in candidate
85 distinct names across both lists
Candidate ingredient source ↗ · 2026-10-23
The products below share listed ingredient names. This does not establish equal concentrations or effects.
Malpighia Glabra (Acerola) Fruit Water (400,000 ppm), Aqua/Water/Eau, Butylene Glycol, Glycerin, Cetyl Ethylhexanoate, Niacinamide (40,000 ppm), 1,2-Hexanediol, Arbutin, Hydrogenated Lecithin, Pentaerythrityl Tetrabehenate, Diethoxyethyl Succinate, Betaine, Ceramide NP, Hydroxyethyl Urea, Caprylic/Capric Triglyceride, Melia Azadirachta Leaf Extract, Cetearyl Alcohol, Squalane, Melia Azadirachta Flower Extract, Panthenol (2,940 ppm), Curcuma Longa (Turmeric) Root Extract, Tocopherol (2,000 ppm), Carbomer, Butyrospermum Parkii (Shea) Butter, Tromethamine, Xanthan Gum, Allantoin, Ethylhexylglycerin, 2,3-Butanediol, Ocimum Sanctum Leaf Extract, Disodium EDTA, Sodium Hyaluronate, Sodium Carboxymethyl Beta-Glucan, Corallina Officinalis Extract, Malpighia Glabra (Acerola) Fruit Extract, Glyceryl Stearate, Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Potassium Hyaluronate, Rubus Fruticosus (Blackberry) Fruit Extract, Vaccinium Macrocarpon (Cranberry) Fruit Extract, Vaccinium Angustifolium (Blueberry) Fruit Extract, Rubus Idaeus (Raspberry) Fruit Extract, Sambucus Nigra Fruit Extract, Ceramide NS, Ceramide AS, Ceramide AP, Cholesterol, Ferulic Acid, Glutathione, Tranexamic Acid, Adenosine, 3-O-Ethyl Ascorbic Acid (10 ppm), Pentylene Glycol, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Ceramide EOP
Ingredient source ↗ · 2026-10-22 · US product listing
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