# Abib Glutathiosome Dark Spot Serum Abib Glutathiosome Dark Spot Serum: authentic Korean-market serum, sourced for the Korean market. - Brand: Abib - Product: Glutathiosome Dark Spot Serum - Price: $17.64 - Availability: In stock - Size: 50 ml - Market: Korean market, the version sold in Korea - Made in: Republic of Korea - Category: Serums & Ampoules ## Key benefits - Built around Butylene Glycol and Niacinamide - Carries Betaine for supporting texture and feel - Formulated as a serum for its specific place in a layered routine - Sourced as the authentic Korean-market formula, not a US reformulation - Intact Korean-market barcode and batch code on every unit ## How it works The formula is built around Butylene Glycol, which sits high enough on the ingredient list to carry real weight rather than trace amounts. Niacinamide works alongside it, and together they are what Abib is pointing at when the line is marketed for this routine step. Betaine rounds out the supporting cast, filling in texture and feel rather than acting as a headline ingredient. As a serum, it is meant to sit at its specific point in a layered Korean routine rather than replace the steps around it. Abib sources this as the same Korean-market formula sold in Korea, not a separate US-facing version. ## How to use 1. Cleanse and tone first, and apply while the skin is still slightly damp so it spreads in one pass. 2. Press a thin layer over the whole face rather than only the darker patches, since the aim is even colour overall. 3. Follow with moisturizer to hold it in place, and with sunscreen as the last step in the morning. 4. Do not put it on the same evening as a strong exfoliating product, and give each of them their own night instead. ## Ingredients Water, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Zea Mays (Corn) Starch, Chondrus Crispus Extract, Chlorella Vulgaris Extract, Saccharum Officinarum (Sugarcane) Extract, Centella Asiatica Leaf Extract, Chitosan, Malus Domestica Fruit Cell Culture Extract, Polyacrylate Crosspolymer-6, Betaine, Glucose, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Acetyl Glucosamine, Fructooligosaccharides, Fructose, Glycerin, Pentylene Glycol, Ethylhexylglycerin*, Allantoin, Dipropylene Glycol, Adenosine, Glutathione, Madecassoside, Hydroxypropyl Methylcellulose, Hydrogenated Lecithin, Beta-Glucan, Cholesterol, Asiaticoside, Ascorbic Acid, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Ceramide NP, Tocopherol, Ferulic Acid, Lactic Acid, Disodium EDTA, Carbomer, Iron Oxide Red ## FAQ ### What does Butylene Glycol do in this formula? Butylene Glycol is a humectant and solvent that helps the formula's other ingredients dissolve evenly while adding a light layer of its own moisture-holding benefit. It sits toward the front of the ingredient list on this product, which is a reasonable signal of how central it is to the formula. Pairing it with the rest of the ingredient list is what gives this serum its particular feel and finish. ### Where does this fit in a routine? As a serum, this is meant to be used at the point in a layered Korean routine where that step normally sits, applied by pressing a few drops into skin after toner and before moisturizer. Using it out of order will not make it harmful, but it may change how well the following step absorbs. Consistency in where it sits in the routine matters more than the exact minute-by-minute order. ### Is this the same formula sold in Korea? Yes. Abib products sold through Korean Pharmacy are sourced as the authentic Korean-market formula, the same version stocked on shelf in Korea, rather than a separate US-facing reformulation many US retailers carry instead. Packaging carries the intact Korean-market barcode and batch code as part of that sourcing. This is the specific gap Abib shoppers in the US have been left with since Korean import channels tightened. ### How long will one unit last? How long a serum lasts depends entirely on how much is used per application and how often it is applied, so there is no single number that fits every routine. A smaller, daily-use amount will stretch the unit further than a heavier, occasional application. Checking the fill amount against your own usual per-use amount is the most reliable way to estimate it for your own routine. ### Can this be layered with other actives? Butylene Glycol on this ingredient list is not flagged as one that requires special spacing from common actives, so it generally layers into a routine without extra precautions. As with any new product, introducing it on its own for the first few uses is the sensible way to see how your skin responds before adding it alongside other actives. If you use a prescription-strength active elsewhere in your routine, following your own provider's layering guidance takes priority over general routine advice. --- Page: https://korean-pharmacy.com/products/abib-glutathiosome-dark-spot-serum