Round Lab Birch Moisturizing Serum
Birch tree sap-based hydrating serum with sodium hyaluronate. Light-textured, non-greasy. Birch sap contains betulin (anti-inflammatory) and xylitol (humectant). A 4th Wave hydration serum notable for its non-comedogenic suitability for oily and combination skin.
Explore this formula
Where to Buy
As an Amazon Associate I earn from qualifying purchases. Using this link does not increase your price.
Atlas links to an Amazon search, not a verified seller listing. Confirm the exact product, formula, seller, and price before purchase.
Reviewed Full Ingredient List (INCI order)
Full order reviewed for US-en on 2026-07-20. Official formula source → Formulas can change; confirm the current package.
Position shows label order, not exact concentration. Ingredients at 1% or less may be listed in flexible order. Learn how to read an ingredient list →