
About this product
In Finland, koivu (birch) is the first tree to wake after winter. Its pale-green leaves peak at Juhannus — midsummer — dense with the aromatic oils that Finns have been putting in their hair for centuries. The tradition is old and simple. After a sauna session, steep fresh birch branches in hot water and rinse your hair with the result. The vihta (birch whisk) used in the steam does something similar: it opens the pores, stimulates the scalp, and leaves everything feeling genuinely alive. Koivunlehtiuute — birch leaf extract — is not a trend. It is a ritual that has been quietly working long before ingredient lists existed. This shampoo distils that into a bottle. The extract is rich in vitamin C, flavonoids, tannins, and saponins — compounds that strengthen the hair shaft and add resilience to fine, fragile strands. Gentle enough for daily washing. Never heavy. No stripping. The scent is the real thing: fresh, green, faintly sweet in the way birch leaves smell when they hit hot water. Not a laboratory approximation. Exactly the atmosphere of a summer sauna evening — löyly rising, birch in the air, nowhere to be. Finnish sauna culture was inscribed as UNESCO Intangible Cultural Heritage in 2020. This shampoo is a small, daily piece of that. Best for fine and normal hair. Suitable for frequent washing and colour-treated hair. Erittäin Hieno — Very Fine Koivunlehtiuute — Birch Leaf Extract Valmistettu Suomessa — Made in Finland 300 ml
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Reading for sauna enthusiasts
How to Choose the Right Sauna Rocks
Not all rocks belong in a sauna. The wrong choice can crack, shatter, or release harmful dust. Here's what to look for — and what to avoid.
Read more →What Regular Sauna Use Actually Does to Your Body
The research on sauna is more compelling than most people realize. From cardiovascular health to stress recovery, here's what science says about regular bathing.
Read more →


