Tsujimoto Market: Our Guarantees
Description
KOSE Clear Turn White Mask (Vitamin C), 5 Sheets – Japanese Quasi-Drug Sheet Mask
Overview
The vitamin C mask from KOSE Cosmeport's Clear Turn White line — five sachets, one sheet each, and a Japanese quasi-drug (医薬部外品) rather than a plain cosmetic. The approved active is ascorbyl glucoside, a vitamin C form that is stable in water where plain ascorbic acid is not, which is why it survives in a sachet of essence on a shelf.
KOSE's claim for it is precise and worth repeating exactly: it prevents spots and freckles caused by sun exposure. The rest of the formula is a plant-extract base — clematis, meadowsweet, horsetail, ivy, elder, seaweed — in glycerin and butylene glycol.
A word on what 美白 (bihaku) means on a Japanese label. The approved claim is preventing spots and freckles caused by sun exposure, by limiting melanin production. It is not a claim to fade pigment that is already there, and the English word "whitening" does not change the skin's own colour. We keep the Japanese scope here rather than widen it in translation.Same line, different active: the tranexamic acid version and the placenta version. More in Japanese face masks and Japanese whitening skincare.
Key Benefits
- ✓ Japanese quasi-drug (医薬部外品) with ascorbyl glucoside as the approved active
- ✓ Approved claim: prevents spots and freckles caused by sun exposure
- ✓ Ascorbyl glucoside is water-stable, so the dose in the sachet is still there when you open it
- ✓ Plant-extract base — clematis, meadowsweet, horsetail, ivy, elder, seaweed
- ✓ Five individually sealed sachets, one sheet each; the sheet is shaped to sit over the nose and jaw
- ✓ Can be warmed in the bath or chilled in the fridge, in the sachet — KOSE's own suggestion
- ✓ Authentic Japanese pack, shipped from our own stock in Kobe
Product Details
| Brand | KOSE Clear Turn |
|---|---|
| Japanese name | クリアターン ホワイト マスク（ビタミンＣ） |
| 販売名 (registered sales name) | クリアターン ホワイト マスク ＶＣ |
| Made by | KOSE Cosmeport |
| Japanese product class | Quasi-drug (医薬部外品) |
| Approved active (有効成分) | Ascorbyl glucoside (a stable vitamin C derivative) |
| Approved claim | Prevents spots and freckles caused by sun exposure, and keeps the skin looking clear (KOSE's own wording: 日やけによるシミ・ソバカスを防ぎ). |
| Pack size | 5 sachets, one sheet each (5回分) |
| Animal-derived ingredients | None — plant and mineral ingredients only |
| Country of origin | Japan |
| JAN code | Printed on the pack |
| Sold by | Tsujimoto Market, Kobe, Japan |
Who Is This For?
- Anyone whose concern is what the sun will do next rather than what it has already done. This is preventive care, used through the seasons when the UV index is high.
- People who want to try a Japanese 美白 active before committing to a bottle of serum — five sheets is a cheap way to find out whether your skin likes it.
- Skin that finds vitamin C serums stinging: at the concentration in a mask essence, with a stabilised derivative, most people who cannot tolerate a serum can tolerate this.
- Anyone already using sunscreen daily. A 美白 mask is a complement to that, never a substitute — the active limits melanin production, the sunscreen limits the trigger.
- Not for skin that is currently broken, sunburned or inflamed. Wait until it has settled.
How to Use
- Cleanse, then prepare the skin with your usual toner.
- Open one sachet, unfold the sheet and lay it on the face, matching the eye and mouth openings.
- Smooth it down from the centre outwards so no air is trapped along the nose and jaw.
- Leave it on for the time on the pack, then lift the sheet off and discard it. Do not rinse.
- Press the remaining essence in with the palms, then seal with an emulsion or cream.
Frequency: KOSE sells this as a 5回分 pack — five uses. One or two sheets a week alongside daily sunscreen is the pattern the pack is built for; it is not a daily mask.
Full Ingredients
Exactly as declared by KOSE Cosmeport on the product page for this 販売名. INCI names are kept in Latin.
Active ingredient (有効成分): ascorbyl glucoside (L－アスコルビン酸2－グルコシド).
Other ingredients: purified water, 1,3-butylene glycol, dipropylene glycol, clematis extract, meadowsweet (Filipendula) extract, horsetail (Equisetum) extract, English ivy (Hedera helix) extract, elder (Sambucus nigra) extract, seaweed extract (1), disodium EDTA, xanthan gum, hydroxypropyl methylcellulose, sodium phosphate dibasic, sodium phosphate monobasic, sodium hydroxide, concentrated glycerin, methylparaben.
KOSE's own suggestion, and one most translations leave out: the sealed sachet can be floated in a 40 °C bath for about five minutes to warm it, or chilled in the fridge. Warm for a winter evening, cold for a summer morning or after sun exposure.
Cautions
- For external use only. Avoid the eye area; if the product gets into the eyes, rinse at once with water or lukewarm water.
- Do not use on skin with wounds, swelling, eczema, sunburn or any other abnormality.
- Patch test before the first full-face use: apply a little to the inner forearm and leave it 24 hours.
- Stop using it and speak to a dermatologist if redness, swelling, itching, stinging or any other reaction appears during use or afterwards. Continuing can make it worse.
- Keep out of reach of children.
- Close the pack after use and store away from direct sunlight, heat and damp.
- Contains methylparaben. It is a preservative in the essence and it is declared; if you avoid parabens, this is the line to read.
- A quasi-drug is not a medicine. It prevents sun-induced spots; it does not treat melasma or any diagnosed pigmentary condition.
- Single use. Discard the sheet after one wear and do not keep a part-used sachet.
Package Contents
One box, five sealed sachets, one sheet in each. No tray, no applicator, nothing else in the box.
Shipping & Store Notes
- Ships directly from Japan
- Processing time: 2–6 business days
- Tracking number provided after dispatch
- Import duties and taxes may apply depending on destination country
- Opened cosmetics cannot be returned for hygiene and safety reasons
Authenticity Guarantee
Every product at Tsujimoto Market is sourced directly from Japan and verified for authenticity. We never sell fakes or grey-market goods. Each order is carefully packed in Kobe, Japan and dispatched with full tracking.
FAQ
Will this fade the dark spots I already have?
No, and any page that says it will is overselling it. The Japanese 美白 claim these masks hold is prevention: limiting melanin production so that sun exposure produces fewer new spots and freckles. Existing pigment is a different problem, and the honest answers to it are time, sun avoidance, and in some cases a dermatologist.
Vitamin C or tranexamic acid — which of the two?
They hold different approved claims. The vitamin C mask prevents spots and freckles caused by sun exposure; the tranexamic acid mask prevents spots and freckles from spreading. In practice: discrete spots after a summer, vitamin C; pigmentation that is widening across an area, tranexamic acid. The base formula is otherwise the same, so it is a fair comparison rather than a marketing one.
Can I leave the mask on longer than the pack says?
No. Once the sheet starts to dry it takes moisture back off the skin instead of giving it. The time on the pack is the point at which to remove it, not a minimum.
Do I still need sunscreen?
Yes, and more than you need the mask. A 美白 active limits how much melanin the skin makes; sunscreen limits the UV that asks it to. Using the mask without daily sun protection is treating the symptom and leaving the cause running.
Is it authentic, and where is it shipped from?
It is bought in Japan for the Japanese market and shipped from our own stock in Kobe. The box is in Japanese. Processing takes two to six business days and a tracking number follows dispatch; transit time after that depends on the shipping method you choose at checkout, so we do not quote a single delivery figure.
