Two white airless bottles standing upright on a round natural wood slice coaster against a light gray studio background. The tubes have green leaf illustrations near the top and readable text including 'Twilight Birch Nighttime Face Serum' and 'Birch Dew Daytime Face Serum,' with a brand name visible near the bottom.

The Serum Duo – Birch Dew & Twilight Birch Nordic Face Serums for Day & Night

Sale price  $151.00 Regular price  $168.00
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Two white airless bottles standing upright on a round natural wood slice coaster against a light gray studio background. The tubes have green leaf illustrations near the top and readable text including 'Twilight Birch Nighttime Face Serum' and 'Birch Dew Daytime Face Serum,' with a brand name visible near the bottom.
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The Serum Duo – Birch Dew & Twilight Birch Nordic Face Serums for Day & Night

Morning. Night. The Botanical Foundation.

$151.00Bought separately: $168.00

Save $17 vs. buying separately

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Full ingredient list
Birch Dew Daytime Serum Ingredients:
Betula Alba (Birch Sap) Juice, Betula Alba (Birch) Leaf Juice, Lactobacillus Ferment Lysate (probiotic ferment), Yeast Extract (biofermented, naturally rich in niacinamide), Glycerin, Alcohol, Propanediol (plant-derived humectant), Rubus Chamaemorus (Cloudberry) Seed Oil, Picea Abies (Norway Spruce galactoglucomannan) Wood Extract, Water (Aqua), 3-O-Ethyl Ascorbic Acid (stable Vitamin C), Caryodendron Orinocense (Cacay) Seed Oil, Pentylene Glycol, Ribes Nigrum (Black Currant) Seed Oil, Tocopherols (Vitamin E), C13-15 Alkane (plant-derived emollient), Fibroin Glycoside (silk-derived humectant), Inonotus Obliquus (Chaga Mushroom) Extract, Urtica Dioica (Nettle) Leaf Extract, Plantago Major (Plantain) Leaf Extract, Urtica Dioica (Nettle) Root Extract, Achillea Millefolium (Yarrow) Extract, Hippophae Rhamnoides (Sea Buckthorn) Fruit Oil, Sclerotium Gum, Sodium Phytate, Salicylic Acid, Caesalpinia Spinosa (Tara) Gum, Leuconostoc/Radish Root Ferment Filtrate (natural preservative), Benzyl Alcohol, Sorbic Acid, Fragrance (Parfum): Ribes Nigrum (Black Currant) Flower Absolute, Abies Balsamea (Balsam Fir) Needle Oil, Citrus Aurantium Bergamia (Bergamot) Fruit Oil*, Juniperus Communis (Juniper Berry) Fruit Oil, Cananga Odorata (Ylang Ylang) Flower Oil, Black Currant Fragrance†, Green Fragrance†

Twilight Birch Nighttime Serum Ingredients:
Betula Alba (Birch Sap) Juice, Glycerin, Water (Aqua), Propanediol (plant-derived humectant), Alcohol, Vaccinium Vitis-Idaea (Lingonberry) Seed Oil, Picea Abies (Norway Spruce galactoglucomannan) Wood Extract, Bakuchiol (plant-derived retinol alternative), Caryodendron Orinocense (Cacay) Seed Oil, Pentylene Glycol, Ribes Nigrum (Black Currant) Seed Oil, Tocopherols (Vitamin E), C13-15 Alkane (plant-derived emollient), Inonotus Obliquus (Chaga Mushroom) Extract, Vaccinium Vitis-Idaea (Lingonberry) Fruit Extract, Urtica Dioica (Nettle) Leaf Extract, Plantago Major (Plantain) Leaf Extract, Achillea Millefolium (Yarrow) Extract, Psoralea Corylifolia (Bakuchi) Fruit Extract, Hippophae Rhamnoides (Sea Buckthorn) Fruit Oil, Urtica Dioica (Nettle) Root Extract, Sclerotium Gum, Sodium Phytate, Salicylic Acid, Caesalpinia Spinosa (Tara) Gum, Fibroin Glycoside (silk-derived humectant), Sorbic Acid, Helichrysum Stoechas (Everlasting) Flower Extract, Citric Acid, Xanthan Gum, Gluconolactone, Calcium Gluconate, Benzyl Alcohol, Sodium Benzoate, Fragrance (Parfum): Ribes Nigrum (Black Currant) Flower Absolute, Juniperus Communis (Juniper Berry) Fruit Oil, Pelargonium Graveolens (Rose Geranium) Oil, Abies Balsamea (Balsam Fir) Needle Oil, Black Currant Fragrance†, Green Fragrance†

† We're committed to fragrance transparency. The Birch Dew and Twilight Birch scents are each over 99% natural — blends of pure essential oils with a botanical absolute or extract. The remaining trace (less than 0.01%) consists of nature-identical fragrance molecules that mirror compounds found in nature, used to round out the scent profile.
*Contains botanical extracts and essential oils. As with all active botanical formulas, individual sensitivity varies. Patch test recommended for reactive skin. Discontinue use if irritation occurs. Not for use on broken or compromised skin. Consult a healthcare professional if you are pregnant, nursing, or have a known skin condition.
Sourcing
We source with the same care the Nordic relationship with nature has always demanded — taking only what is needed. We prioritize suppliers whose practices we can stand behind across the full supply chain, environmentally and socioeconomically. Nothing is borrowed. Nothing is performed.

The story

From Forest to Formula - The Serum Duo

Two Nordic botanical face serums. The same Nordic foundation. Completely different hours.

In the morning it needs defending. By evening it needs renewing. Most serums ask you to pick one. The Serum Duo covers the full 24-hour cycle your skin actually works on — one formula for what the day demands, one for what the night makes possible.

Both begin with organic Finnish birch sap — 65% or more of each formula by weight, forming the entire water phase. A living base that carries minerals, amino acids, and naturally occurring xylitol deeper than water reaches. In harmony with the birch sap: concentrated Chaga extract, carried deeper by that living base, delivering antioxidant defense before the day has asked anything of your skin.

From that foundation, each serum divides the day.

Birch Dew Daytime Serum — the morning defense and luminosity layer.
Arctic cloudberry leads — one of the rarest berry oils in Nordic nature, its omega fatty acid profile almost singular in the plant world. Its natural vitamin C works alongside a stabilized vitamin C derivative and niacinamide from a biofermented yeast extract — three sources of brightness building quietly, in the same direction, over time. A probiotic ferment rounds out the system. The Nordic Botanical Complex settles everything before the actives begin.
This is the protection layer. What goes between clean skin and the world.
For additional information visit the Birch Dew product page.

Twilight Birch Nighttime Serum — the overnight renewal layer.
Nordic lingonberry leads — in two forms, doing two different things. Lingonberry fruit extract, carrying the berry's antioxidant polyphenols. Lingonberry seed oil to nourish and cushion the barrier while skin does its most considered work. One berry, two forms, chosen to reinforce each other.

Alongside them: Bakuchiol, as both fruit extract and isolated active, for the appearance of renewal without retinol's photosensitivity or irritation. For skin navigating hormonal change — where sensitivity often increases — this is not a compromise. It is the more considered path to the same destination. The Nordic Botanical Complex, with both nettle root and nettle leaf, settles the skin before the active layer begins. Two forms of the same plant. Two distinct phytochemical fractions. Both needed.

This is the renewal layer. What your skin does with the night, supported.
For additional information visit the Twilight Birch product page.

Kasvi Beauty Birch Dew Daytime Serum bottle with serum swoosh on white background.

Hero ingredients

What's inside, and why

Hero ingredients

Organic Finnish Birch Sap — The living base of both serums, and of Bilberry Dream Cream. Minerals, amino acids, and naturally occurring xylitol, forming the entire water phase.

Chaga Extract — Concentrated wild mushroom extract with one of the highest antioxidant capacities in the natural world. Carried deeper by the birch sap base. The warm color in both serums is the Chaga — not decoration, evidence of concentration.

Arctic Cloudberry Seed Oil — One of the rarest berry oils in Nordic nature. Its omega fatty acid profile is almost singular in the plant world. The luminosity lead in the Birch Dew.

Nordic Lingonberry — Present in two forms in the Twilight Birch. Cold-pressed seed oil to nourish and cushion the barrier overnight, and an antioxidant-rich fruit extract carrying the berry's polyphenols.

Bakuchiol — Plant-based. Present as both fruit extract and isolated active. For the appearance of renewal without retinol's photosensitivity or irritation. The considered path for skin navigating hormonal change.