Coleus amboinicus essential oil, 50 ml
If you have never worked with Coleus amboinicus before, this 50 ml bottle is the low-risk way in. The plant, also published as Plectranthus amboinicus, is a succulent herb grown across the tropics, where its thick, velvety leaves are used in cooking. That is where the nicknames Cuban oregano and Indian borage come from. The oil is taken from the leaves, and the product card lists the INCI name Coleus Amboinicus Leaf Essential Oil and India as the country of production.
Choosing between 50 ml and 500 ml
The two sizes contain the same oil but suit different stages. The 50 ml bottle covers concept work: smelling the material, building a few accords and making pilot batches of the products you have in mind. The larger container only makes sense once the formula is fixed and you need a steady supply for repeat production. Starting small keeps cash and shelf space free while you decide whether this sharp, herbal note belongs in your range.
First impressions on a blotter
Dip a smelling strip and note how the oil changes over time. The opening is bright and almost medicinal-smelling, with eucalyptus and thyme. After some minutes a warm, oregano-like spiciness takes over. On the next day a soft green residue remains. This progression shows why Coleus is usually an accent rather than the backbone of a fragrance.
Product ideas to test
Beard and moustache oil
A light, dry carrier blend with a touch of Coleus and cedarwood gives a clean, outdoorsy scent.
Foot balm
The herbal freshness suits firm balms for feet, where a crisp scent is welcome.
Room spray
Paired with lemon and pine, Coleus adds a green, kitchen-garden twist to home fragrance.
Formulation pointers
The oil is insoluble in water. Add it to the oil phase, or premix it with a solubiliser before it goes into a watery base. Work below 40 °C. Leave-on products are usually kept between 0.2 and 0.5 %, and rinse-off products can reach about 1 %. Use these numbers as starting points: the safety assessment of the finished product has the final word.
Stability checks worth doing
Run each trial batch through a simple shelf test. Keep one sample at room temperature, one in a warm cupboard at about 40 °C and one in the fridge, and compare colour, clarity and scent after two and four weeks. Herbal oils rich in phenols can darken a little over time, and clear gels can turn hazy if the solubiliser ratio is too low. Finding this out at the 50 ml stage costs very little.
Blending notes
Coleus is phenolic and assertive. It works best with citrus, conifers, rosemary and cedarwood, and it tends to swamp delicate florals such as rose.
Card details
Country of production India. INCI Coleus Amboinicus Leaf Essential Oil. Pale yellow to greenish yellow, clear, medium fluidity. Pack size 50 ml.
Test formula: beard oil, 30 ml
Combine 15 ml of jojoba oil, 10 ml of argan oil and 4.7 ml of fractionated coconut oil in a glass beaker. Add 0.1 ml of tocopherol, 0.1 ml of Coleus essential oil and 0.1 ml of cedarwood oil, stir and fill into a dropper bottle. The fragrance load is under 1 %, which leaves room to adjust. Carrier oils are in wholesale liquid oils. When the formula is final, move to the 500 ml container of the same oil. The whole range is listed under wholesale essential oils.
Looking after a small bottle
Keep it upright, tightly closed and out of the light. Avoid plastic droppers for long-term storage, as strong essential oils can attack some plastics.
FAQ
What does Coleus amboinicus oil smell like?
Sharp and herbal at first, with eucalyptus and thyme, then warm and oregano-like.
How many trials does 50 ml allow?
At about 1 ml per sample, dozens of test batches.
Is it suitable for beard oils?
Yes, at a low level and blended with woody notes.