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Manyo Factory
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A 30ml serum built on glutathione, the ingredient that moved from Korean clinics to the retail shelf over the last few years. The 30ml bottle and the dropper are deliberate: this is a targeted step used twice a day for a defined stretch, not a lotion you apply by the handful.
Who it's for. Skin showing uneven tone and post-blemish marks. Suits all types, including oily skin that finds vitamin C serums too tacky.
How to use. Morning and evening, after toner and before cream. Two to three drops over the face, with a little extra pressed onto marked areas. Daily sunscreen is not optional alongside a tone product — without it you are working against yourself.
Key active. Glutathione, used in Korean formulation as a skin-conditioning and tone-evening agent. In Korean marketing “whitening” means evenness of tone, not lightening the skin, and the topical form is a cosmetic rather than a clinical treatment.
Sourced in Seoul. This is the Korean domestic SKU, not a reformulated export version.
All orders ship from South Korea. Your order is picked and packed by our logistics partner in Bucheon-si, Gyeonggi-do, then travels to the United States as an international shipment.
Handling 1-3 business days, international transit and customs clearance 7-11 business days. Total estimated delivery 8-14 business days. These are estimates, not guarantees.
Free shipping on orders $120+; a flat $12.99 below that. The $120 threshold applies to your order total after any automatic discount. Product prices do not include U.S. import duties or customs fees, which are billed by the carrier and are the responsibility of the recipient.
You may request a return within 30 days of delivery on unused, unopened items. Returns ship to our facility in South Korea and require a Return Authorization Number, which you must request from us before sending anything.
The full ingredient list (INCI) is printed on the product packaging. These are authentic Korean-market formulations sourced directly in Seoul - the domestic SKU, not a reformulated export version.

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A 30ml serum built on glutathione, the ingredient that moved from Korean clinics to the retail shelf over the last few years. The 30ml bottle and the dropper are deliberate: this is a targeted step used twice a day for a defined stretch, not a lotion you apply by the handful.
Skin showing uneven tone and post-blemish marks. Suits all types, including oily skin that finds vitamin C serums too tacky.
Morning and evening, after toner and before cream. Two to three drops over the face, with a little extra pressed onto marked areas. Daily sunscreen is not optional alongside a tone product — without it you are working against yourself.
Glutathione, used in Korean formulation as a skin-conditioning and tone-evening agent. In Korean marketing “whitening” means evenness of tone, not lightening the skin, and the topical form is a cosmetic rather than a clinical treatment.
The steps that go with it, added in one click
Routine total
$154.00
4 products · added in one click
























100% authentic
Sourced in Korea from the brands. Never counterfeit.
Ships from Seoul
Dispatched from Bucheon. 8-14 business days to the US.
Free shipping $120+
Flat $12.99 under $120. Import duties not included.

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