The power of nature. In every drop.

Over 60 pure essential oils and 13 blends – for diffusers, sauna, skincare and everything that makes your home a little more natural.

100 % pure · Hand-filled with care in Germany

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100 % pure

100 % pure

No synthetic additives

Hand-filled in Germany

Hand-filled in Germany

In small batches

Free shipping from €50

Free shipping from €50

Within Germany

Batch number

Batch number

On every label

The easiest way in

Can't decide? The starter set

Ten of our most popular oils at 10 ml each: lavender, lemon, sweet orange, lemon eucalyptus, eucalyptus, peppermint, tea tree, rosemary, cedarwood and clove.

From citrus through herbal to woody and spiced – enough to cover all five scent families and work out which direction suits you.

Bought individually, these ten oils cost €72.50. In the set you pay €49.95.

View the starter set
Zitroneneukalyptusöl von Casse-Q – 100 % naturrein

Lemon eucalyptus – Eucalyptus citriodora

Our oil of the month

What makes lemon eucalyptus special starts with how it's obtained: gentle steam distillation of the fresh leaves produces an essential oil with a clear, lemony-fresh profile.

Natural aroma compounds such as citronellal shape its character – citrusy and herbaceous at once, noticeably fresher than classic eucalyptus. In a diffuser it's there immediately, but fades faster than woody oils.

It comes into its own in the warm season, when light, zesty scents are what you want – on the terrace, in the garden house or as a summer scent indoors.

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The difference is in the detail

Casse-Q vs. the others.

Supplier analyses Filled in Germany 100% pure essential oil
Feature Casse-Q Others
100 % pure essential oil No extenders, carrier oils or synthetic additives Always Not always
Hand-filled in Germany Every bottle filled individually by hand – controlled quality ALWAYS Mostly machine-filled
Small batches Fresh and consistent – no months in storage ALWAYS Large volumes
Botanical name & batch number On every label – every filling traceable ON EVERY LABEL Often not stated
Transparent origin Known producers, traceable supply chain COMPLETE Rarely named
No synthetic fragrance What smells of lavender is actually lavender GUARANTEED Not guaranteed
Personal service Real people, real answers – no call centre DIRECT Anonymous

Frequently asked questions

What are essential oils?

Essential oils are volatile plant extracts obtained from blossoms, leaves, barks, roots or fruit peel. They hold the scent of the plant in highly concentrated form. When you buy 100 % pure essential oils from us, you get an unadulterated natural product – free of synthetic fragrances and extenders.

How are essential oils produced?

Usually by steam distillation, where hot vapour releases the oil molecules from the plant tissue. For citrus fruits such as lemon or orange we use cold pressing to preserve the zesty freshness of the peel. We rely on gentle methods so the delicate aroma compounds survive.

How can you tell a high-quality essential oil?

Real quality can be read on the label. It should carry the botanical name in Latin, the country of origin, the extraction method, a batch number and the note “100 % pure essential oil”. Lower-grade products often hide behind terms like “perfume oil” or “nature-identical”. That transparency is exactly what we insist on for all our oils.

How do you use essential oils?

The options are varied. The most common are:

  • In a diffuser or as room fragrance: 4 to 6 drops in 150–200 ml of water for an average room.
  • As a sauna infusion: 5 to 10 drops per litre of water, never neat on the stones.
  • In DIY projects: in homemade soap, bath salts or natural cosmetics.
  • On skin: only diluted in a carrier oil such as almond or jojoba, typically at 1 to 3 percent.

Can you blend essential oils?

Yes. What matters is the balance of top, heart and base notes: light citrus is there immediately, herbal and floral parts follow, woody base notes carry for hours. Ready-made compositions are under Essential Oil Blends.

How should essential oils be stored?

Cool, dark and tightly closed. UV light and oxygen cause oxidation, which changes both scent and colour. Use citrus oils within a year; woody and resinous oils keep considerably longer.

Why essential oils from Casse-Q?

We select our producers against fixed criteria and ask for their analyses. Filling is done by hand in Germany, in small batches. Every label carries the botanical name, country of origin, extraction method and batch number – so you can trace what's in the bottle.

Pure essential oils for home, sauna and garden

Scent is more than a passing smell. It shapes how a room feels, and it attaches itself to memories. At Casse-Q you'll find over 60 pure essential oils and 13 ready-made blends – for the diffuser, the sauna infusion, your own cosmetic recipes and everything that makes your home a little more natural.

Why pure makes the difference

“Fragrance oil”, “aroma oil” and “perfume oil” are not protected terms – behind them sit mostly lab-made scent compounds, often dissolved in alcohol or a carrier oil. A pure essential oil, by contrast, is the unaltered distillate or pressing of a single plant.

The difference shows above all over time: a synthetic scent smells the same from the first minute to the last, because it was built that way. A natural product consists of dozens of compounds with different vapour pressures – the light molecules reach the air first, the heavy ones last.

Which scent suits which room?

  • Living room: warm, balanced compositions that stay pleasant over longer run times – Sonnenruhe or Waldliebe, for example.
  • Study: clear, herbal notes such as Frischegeist or Kräuterwind.
  • Bathroom: fresh components such as lemon, lime or eucalyptus.
  • Bedroom: lavender or Swiss stone pine, sparingly dosed – two drops are often enough here.
  • Terrace and garden house: citrus oils such as lemongrass or grapefruit, combined with a woody base note that holds up in the warmth.

Four tips for scenting a room

  1. Less is more. Start with 3 to 5 drops in the diffuser. Pure oils go a long way.
  2. Air the room first, then scent it. Room fragrance is no substitute for oxygen.
  3. Intervals beat continuous running. The nose adapts to a constant scent after about fifteen minutes. 15 minutes on, 30 off works better than adding more.
  4. Place it well. Somewhere air circulates, but not in a draught.

Where to start?

The most common beginner's mistake is buying too much choice. Ten small bottles mean ten oils, eight of which are still half full two years later. Three or four oils you actually use up make more sense – or the starter set with ten varieties at 10 ml, if you'd like to try more at once.

What lies behind the term aromatherapy, which legal categories exist and what a scent can realistically do is explained in detail on our aromatherapy guide.

Buying for a business?

We supply resellers, sauna operators, beauty studios and small manufacturers with containers up to one litre – at tiered prices and with a named contact. All terms and the enquiry form are on our wholesale page.