Birch has a sharp, sweet, wintergreen-like aroma — clean, medicinal, and instantly recognizable. It's a bold, distinctive oil that commands attention in a blend.
A little goes a long way — it can easily overpower, so use it sparingly (1–2% max in a blend). It works well with other middle notes like Peppermint or Eucalyptus, and grounds nicely with base notes like Cedarwood or Vetiver. Often used in muscle relief and sports blends.
