Whitening

In Korea, cosmetics can apply for one of a small set of functional designations from the food and drug authority. Whitening, written 미백, is one of them, alongside wrinkle improvement and UV protection. Getting it requires the formula to contain an approved active at an approved concentration. That is why the word appears on such different products here: it describes what the formula is certified to address, not what kind of product it is. The GRAYMELIN Vita Yuzu Cleansing Oil 400ml and the Glutathione Whitening Toner 120ml sit under the same claim and do completely different jobs.

It is not skin bleaching and it is not a claim about lightening your natural complexion. The target is discolouration: post-acne marks, sun-induced spots, melasma patches, general unevenness. A product carrying this claim is working to keep new pigment from settling and to fade what is already there. Nobody's baseline tone shifts. If a listing anywhere promises that, it is not describing the Korean functional claim.

A short list does most of the work. Niacinamide is the most common and the gentlest, interfering with pigment transfer rather than production. Arbutin and its derivatives are next, and there is a separate grid on this site for arbutin formulas. Vitamin C derivatives such as ascorbyl glucoside are stable enough for daily use. Glutathione has become popular enough that a brand on this grid is named after it, and it also has its own page here. Tranexamic acid appears in the more targeted products. Check which one a bottle actually uses before comparing two whitening products against each other.

Several products on this grid carry two claims at once. KAHI Wrinkle Bounce Core Cream Whitening Cream Wrinkle Improvement Cream states both in its own name, and the Sooryehan 150ml and 100ml set does the same. This is normal: a formula that qualifies for one designation often contains an ingredient that qualifies for the other, and brands list both because certification was earned for both. It does not mean the product is twice as strong at either. Read the double claim as two separate certifications, not as a combined promise.

Because it attaches to the formula, you will find it on steps that barely touch the skin. GRAYMELIN puts it on a 500ml Yellow Food Toner and on a 400ml cleansing oil. GLAN MOOR puts it on a tourmaline cream and on a mask pack. A cleansing oil rinses off within a minute, so whatever active it carries has very little contact time. If you want the claim to do something measurable, prioritise it on the steps that stay on the skin: serum, cream, and to a lesser extent toner.

Pigment is produced in response to UV, so a whitening routine without daily sunscreen is a treadmill. The products fade what exists while the sun replaces it at the same rate or faster. This is the single most common reason people conclude that a whitening product did nothing. Sunscreen is not optional alongside these formulas, it is the half that makes the other half visible.

Niacinamide-based ones are easy to layer and rarely conflict with anything. Vitamin C is best kept to the morning. Products carrying both the whitening and the soothing angle, such as CARE ZONE Acure Blemish Soothing Cream 75ml, are the safer starting point for reactive skin because the formula was built not to sting. Avoid running a whitening serum, an exfoliating acid and a retinoid in the same evening, since irritation itself triggers pigment and undoes the point.

Fresh post-acne marks respond fastest and often visibly fade within six to eight weeks. Sun spots that have been there for years take several months and may never go entirely. Melasma is hormonal as well as UV-driven and tends to return, which is why it is managed rather than cured. Take a photo in consistent light at the start, because gradual change is almost impossible to judge in a mirror day to day.