The Joseon pharmacopoeia
All the ingredients
of Korean beauty.
More than forty active ingredients studied in depth: scientific mechanisms, measured benefits, ancestral history at the Joseon palace. Click on an ingredient to explore its full profile.
Fermented rice
Oryza sativa ferment filtrate
발효쌀 (Balhyo-ssal)
The signature ingredient of Korean skincare. Rice, fermented for 60 to 90 days by lactic acid bacteria and natural yeasts, releases a water-…
Read profileRed ginseng
Panax ginseng
홍삼 (Hongsam)
The most precious root in Korean pharmacopoeia. Grown for six years in Geumsan before being harvested, steamed and dried until it turns red,…
Read profileCentella asiatica
Centella asiatica
병풀 (Byeongpul)
Nicknamed 'tiger grass' because wounded tigers rolled in it to heal. Centella concentrates four triterpenes — asiaticoside, madecassoside, a…
Read profileMugwort
Artemisia princeps
쑥 (Ssuk)
The sacred herb at the foundation of Korea. According to the Dangun myth, the first Korean woman was a bear transformed by 100 days in a cav…
Read profilePropolis
Propolis cera
프로폴리스
The resin that bees produce to protect their hive from bacteria and viruses. Applied to the skin, Korean propolis — harvested from the Gangw…
Read profileKorean honey
Mel coreanum
한국꿀 (Hangukkkul)
Korean honey — produced raw and unheated by the beekeepers of Jeolla — contains an exceptional concentration of living enzymes (glucose oxid…
Read profileGreen tea
Camellia sinensis
녹차 (Nokcha)
Korean green tea — mainly grown in Boseong and Hadong, on misty terraces that produce the leaves richest in catechins in the world. Applied…
Read profileCamellia
Camellia japonica
동백 (Dongbaek)
The precious oil obtained from cold-pressed seeds of the camellia flower, which grows wild on the island of Jeju. Its lipid composition is e…
Read profileNiacinamide
Niacinamide (Vitamine B3)
나이아신아마이드
The amide form of vitamin B3, one of the best-studied actives in global cosmetics and a pillar of K-beauty. Compatible with virtually every…
Read profileHyaluronic acid
Sodium hyaluronate
히알루론산
A molecule naturally present in the dermis, capable of holding up to 1,000 times its weight in water. In cosmetics, it exists in several mol…
Read profileBamboo
Bambusa vulgaris
대나무 (Daenamu)
The highest natural concentration of silica (silicic acid) in the plant kingdom — up to 70% of dry weight. This silica is essential to colla…
Read profileSnail mucin
Snail secretion filtrate
달팽이 점액 (Dalpaeng-i jeomaek)
One of the most studied actives of recent K-beauty. The filtered secretion of snails — harvested ethically without harming the animal — cont…
Read profileBetaine
Betaina (de Beta vulgaris)
베타인
A natural osmoprotectant extracted from beetroot, capable of preserving the osmotic balance of cells in a dehydrated environment. Betaine is…
Read profileYuzu
Citrus junos
유자 (Yuja)
The East Asian hybrid citrus — a cross between mandarin and papeda — with an inimitable fresh and woody citrus fragrance. Beyond its olfacto…
Read profileHouttuynia Cordata
Houttuynia cordata
어성초 (Eoseongcho)
Nicknamed 'fish herb' because of its distinctive smell, eoseongcho is one of the most powerful medicinal plants in the Korean pharmacopoeia.…
Read profileMagnolia
Magnolia kobus
목련 (Mokryeon)
Korean magnolia bark contains two unique bisphenols — magnolol and honokiol — with exceptional anti-inflammatory and antibacterial propertie…
Read profileLotus
Nelumbo nucifera
연꽃 (Yeonkkot)
The sacred flower of Buddhism — a symbol of purity that emerges from the mud unsullied. Korean lotus brings the skin a rare combination: ant…
Read profileLaminaria seaweed
Laminaria japonica
다시마 (Dasima)
The giant kelp of the East Korean coast, harvested in Pohang and Ulleungdo. Rich in minerals (iodine, magnesium, calcium), in hydrating algi…
Read profilePeony
Paeonia lactiflora
작약 (Jakyak)
The peony root — not the flower — is one of the most precious ingredients in traditional pharmacopoeia. It contains paeoniflorins and albifl…
Read profileGinkgo Biloba
Ginkgo biloba
은행 (Eunhaeng)
The oldest tree still living on Earth — 270 million years old. Its leaves concentrate unique flavonoids (ginkgolides, bilobalides) with anti…
Read profilePeach
Prunus persica
복숭아 (Boksunga)
The fruit of longevity in Asian culture. Peach brings the skin a cocktail of vitamins (A, C, E), polyphenols and humectant sugars. Its extra…
Read profileBrown rice bran
Oryza sativa bran
쌀겨 (Ssalkkyeo)
The outer layer of the brown rice grain — the richest part of the grain, which is removed to produce white rice. The bran contains 80% of th…
Read profileSalicylic acid (BHA)
Salicylic acid
살리실산
The most studied beta-hydroxy acid in cosmetics: lipid-soluble, it penetrates into the pores and dislodges the oxidized sebum responsible fo…
Read profileAHA (fruit acids)
Alpha-hydroxy acids
AHA (알파-하이드록시산)
Family of water-soluble acids (glycolic, lactic, mandelic, malic) derived from fruits and milk. They exfoliate dead surface cells to reveal…
Read profileCeramides
Ceramides
세라마이드
The natural lipids that form 50% of the intercellular cement of the stratum corneum. Without ceramides, the skin loses its tightness and bec…
Read profileBifida Ferment Lysate
Bifida ferment lysate
비피다 발효 용해물
The lysate of Bifidobacterium bacteria, fermented in a nutrient medium. Pioneered by IOPE and Numbuzin in Korea, it is one of the most power…
Read profileRetinol
Retinol (Vitamine A)
레티놀
The absolute anti-aging reference — the only cosmetic active whose stimulation of collagen is validated by decades of studies. Numbuzin and…
Read profilePeptides
Peptides (chaînes d'acides aminés)
펩타이드
Short protein fragments (2 to 50 amino acids) that act as cellular messengers. Depending on their sequence, they signal collagen production,…
Read profileNoni
Morinda citrifolia
노니
The tropical fruit rich in vitamins, minerals and antioxidants, used in Polynesian medicine for 2,000 years. Celimax popularized it in Korea…
Read profileJeju volcanic clay
Jeju volcanic clay
제주 화산 점토
Drawn from the volcanic soils of Jeju Island, classified a UNESCO Biosphere Reserve. This clay concentrates unique minerals (magnesium, calc…
Read profileBirch sap
Betula platyphylla sap
자작나무 수액
The crystal-clear water that circulates in the birch in spring, traditionally harvested in Siberia, Poland and Korea. Round Lab has made it…
Read profileFermented black rice
Oryza sativa black ferment
흑미 발효액
The dark cousin of white rice, Korean black rice (heuk-mi) contains 5 times more anthocyanins than white rice — the same antioxidant pigment…
Read profilePearl powder
Pearl powder
진주 분말
Oyster pearls ground into a microfine powder, the imperial ingredient of royal Korean cosmetics. The History of Whoo makes it its signature…
Read profileBamboo charcoal
Bamboo charcoal
대나무 숯
Bamboo carbonized at very high temperature becomes an ultra-porous charcoal capable of absorbing up to 200 times its weight in impurities. U…
Read profileRose centifolia
Rosa centifolia
장미 (센티폴리아)
The 'hundred-leaved rose' of Grasse — cultivated for high perfumery since the 17th century. Its floral water, steam-distilled, contains soot…
Read profileFermented yuzu
Citrus junos ferment
유자 발효액
Korean citrus yuzu (yuja), fermented for 100 days in celadon jars. Fermentation transforms its vitamin C into bioavailable forms and release…
Read profileMagnolia bark
Magnolia officinalis bark
후박 (Hupak)
The dried bark of the official magnolia — a pillar of traditional Korean medicine (hupak). It concentrates magnolol and honokiol, two bisphe…
Read profileBakuchiol
Bakuchiol
바쿠치올
Extracted from the Indian plant Psoralea corylifolia, bakuchiol is a natural alternative to retinol — with comparable efficacy on wrinkles a…
Read profileSqualane
Squalane
스쿠알란
Stabilized and hydrogenated version of squalene — a lipid naturally present at 12% in human sebum. Now sourced from olive or sugarcane (no a…
Read profileTranexamic acid
Tranexamic acid
트라넥삼산
Synthetic derivative of lysine, initially developed as an antihemorrhagic agent. A recent discovery: applied to the skin, it powerfully inhi…
Read profileAllantoin
Allantoin
알란토인
Compound naturally present in comfrey, wheat and oak leaves. Identified as early as the 19th century as healing and soothing, it is today on…
Read profileThermal water
Thermal water
온천수
Spring water loaded with minerals (silica, calcium, sodium, selenium) from geological depths. Korean thermal waters (Onyang, Suanbo, Bugok)…
Read profileTremella (silver mushroom)
Tremella fuciformis
흰목이
The Asian silver mushroom, nicknamed 'plant hyaluronic': its polysaccharides hold 500 times their weight in water, with molecules smaller th…
Read profileAzelaic acid
Azelaic acid
아젤라산
Dicarboxylic acid naturally present in grains (barley, wheat, rye). Remarkable triple action: anti-acne, anti-redness (rosacea) and anti-spo…
Read profilePine buds
Pinus densiflora bud
소나무 새순
The young shoots of Korean pine (Pinus densiflora), picked in spring. Rich in chlorophyll, vitamins E and C, terpenes and phytoncides. Gemmo…
Read profileFermented soy
Soya bean ferment
콩 발효액
Soy, fermented for 90 days according to the traditional Korean method (similar to doenjang), releases a unique cocktail: isoflavones (genist…
Read profileMandelic acid
Mandelic acid
만델산
The gentlest of the AHAs, derived from bitter almonds. Its molecule is 4× larger than that of glycolic — it penetrates less deeply and cause…
Read profileGoing further
Discover the rituals that combine them.
Read our editorial articles on glass skin, the morning routine and the secrets of the Joseon palace.
The Joseon Journal