About
An extremely viscous, thick carrier with unique properties due to its high ricinoleic acid content. It is almost never used neat in massage — typically blended at 5–10% with lighter carriers to add thickness and drawing properties.
Used in ancient Egypt as a lamp oil, cosmetic, and medicine for over 4,000 years, castor oil was applied by Cleopatra to improve the lustre of her eyes. It became a globally important industrial and medicinal oil through the 19th century.
Benefits
- ✓Deeply conditioning and occlusive
- ✓Stimulates circulation when applied with massage
- ✓Excellent for dry, cracked skin
- ✓Antimicrobial properties
- ✓Draws toxins and supports lymphatic drainage
Pairings (17)
The high menthol content in Peppermint is intensified by Castor's occlusive nature, creating a delivery system that can cause cold-burn sensations and skin irritation, particularly on sensitive areas.
Castor's occlusive nature significantly intensifies essential oil skin absorption; ginger's potential for irritation is amplified. Use at half the normal ginger dilution in this carrier.
Castor's slow, occlusive absorption amplifies black pepper's warming and potential irritation; reduce black pepper to 1% maximum when using castor as a carrier.
Both are heavy, slow-absorbing oils. Combined, their occlusive properties can significantly intensify the absorption of any essential oils in the blend — reduce EO dilutions by half when using this carrier combination.
An extremely heavy and occlusive combination that creates very slow absorption. Any essential oils blended into this carrier mix will have prolonged skin contact — reduce EO dilutions accordingly and avoid on sensitive skin.
Castor's occlusive properties intensify lemongrass absorption; lemongrass's sensitisation potential is increased. Lower lemongrass to 1% maximum in castor-containing blends.
Castor's very thick, occlusive texture can overwhelm a delicate Rose Otto blend; use only in small percentages within a carrier mix.
Castor oil is extremely viscous and can make blends very sticky; if used, keep at low percentage as a minor component of the carrier base.
Castor's very thick, occlusive texture can intensify skin exposure to Tea Tree; ensure careful dilution and avoid on sensitive or acne-prone skin.
Both are very thick, heavy oils; blending the two creates an extremely viscous, difficult-to-spread mixture that is impractical for most massage applications.
Both oils are heavy and slow-absorbing; combining them risks an uncomfortably thick, sticky blend that may not be suitable for massage — keep castor content very low.
Properties
- Aroma
- mild, faintly musty
- Consistency
- heavy
- Absorbency
- slow
- Shelf Life
- 60 months
Contraindications
- ⚠Never use neat in massage — too viscous, intensifies EO absorption
- ⚠Can cause laxative effect if ingested
- ⚠Avoid with sensitive skin in concentration above 10%