Plante
Birch 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 its iconic signature: a plant water 70% more hydrating than pure water, rich in minerals and flavonoids.
Type de peau
All skin types — particularly for dehydrated, dull, demineralized skin.
Concentration
30 to 90% sap in toner/essence.
Compatibilité
Universally compatible: all actives.
Bénéfices sur la peau
- Deep hydration (capacity superior to water)
- Supply of minerals (manganese, zinc, potassium)
- Soothing and anti-inflammatory effect
- Gentle detoxification
- Skin remineralization
- Immediate plumping effect
Comment ça agit, scientifiquement
Birch sap contains betulins, saponins and flavonoids that form a biocompatible hydrating film. The minerals and trace elements in micellar concentration easily penetrate the stratum corneum and support cellular metabolism.
Tradition coréenne
Histoire et usage ancestral
The harvesting of birch sap in spring is a centuries-old tradition throughout boreal Eurasia. In Korea, it is consumed as a traditional drink (gorosoe) during the awakening season. Its scientific cosmetic use dates from 2010.
Comment l'utiliser
- 01 Daily toner-essence morning and evening
- 02 As the 'first water layer'
- 03 Pat with the hands, never with cotton
- 04 Excellent in synergy with hyaluronic acid