100% Pure Castor Oil - Carrier Oil | Pure, Cosmetic Grade | For Skin & Hair
100% Pure | Unadulterated | No Dilution | Best Results
The thickest, most conditioning carrier oil — the ultimate hair growth base oil and the lather booster every soap maker needs.
Castor Oil (Ricinus communis) is a uniquely structured carrier oil — its primary fatty acid, Ricinoleic Acid (~90%), is the only significant source of this compound in nature. Ricinoleic acid is responsible for castor oil's extraordinary viscosity, its powerful humectant properties (it draws moisture into both skin and hair), its anti-inflammatory action, and its ability to promote circulation when applied to the scalp.
In soap making, castor oil is famous for one specific property: it dramatically increases and stabilises lather. Even a 2% addition to a melt-and-pour base measurably improves bubble quality. In haircare, it is the most popular base oil for hair growth serums — its thick consistency creates long contact time on the scalp, and its ricinoleic acid stimulates follicle circulation.
KEY PROPERTIES & BENEFITS
Ricinoleic Acid (~90%): Unique fatty acid — humectant, anti-inflammatory, circulation-stimulating, antimicrobial
Lather boosting: In soap, castor oil is unmatched for increasing lather volume and density — a soap maker's essential
Scalp circulation: Applied to scalp, ricinoleic acid stimulates blood flow to follicles — the primary mechanism of its hair growth reputation
Deep conditioning: Exceptionally thick and coating — seals moisture into hair shaft and prevents protein loss
Viscosity builder: Used in small quantities to thicken other carrier oil blends without the heaviness of butters
SPECIFICATIONS
Botanical name | Ricinus communis |
Aroma | Very mild, slightly sweet, earthy |
Colour | Pale yellow |
Consistency | Extremely thick and viscous — much thicker than other carrier oils |
Shelf life | 2 years |
Absorption rate | Very slow — sits on skin and hair surface, ideal for intensive conditioning treatments |
Comedogenicity | 1/5 — low risk of clogging pores despite thick consistency |
INCI name | Ricinus Communis (Castor) Seed Oil |
Grade | Cosmetic grade |
Pairs well with | Must be diluted — too thick to use undiluted in most applications. Works well with all oils |
WHERE CAN YOU USE IT?
PRODUCT TYPE | HOW IT'S USED |
Soap (MP/CP) | 2–5% — lather booster; even small additions dramatically improve bubble density. A virtually universal soap making addition. |
Hair growth serum | 20–50% blended with lighter carrier oils (Jojoba, Almond, Argan). The standard professional DIY hair growth oil base. |
Hair oil (pre-wash) | 50–80% in a carrier blend — applied to scalp for 30 min–overnight pre-wash conditioning. The most popular Indian DIY hair treatment. |
Scalp serum | 10–30% — base for Rosemary + Peppermint scalp growth serums. |
Eyelash & eyebrow serum | Neat or 50% blend — the most popular DIY lash and brow conditioning treatment. Applied with a clean mascara wand. |
Lip balm | 10–20% — adds gloss and moisture retention to lip balm formulations. |
Body lotion | 3–10% — adds a moisture-locking film to body lotions, particularly beneficial for very dry skin. |
Shampoo | 1–3% — mild conditioning addition that improves post-wash hair feel. |
Nail & cuticle treatment | Neat application — one of the most effective natural cuticle and nail conditioning oils. |
RECOMMENED USAGE
Soap: 2–5% (higher amounts can make soap sticky)
Hair oil/serum: 20–50% (dilute with lighter oils for wearability)
Lash/brow serum: 50–100%
Lip products: 10–20%
Body lotions: 3–10%
Storage & Safety
Store in a dark glass bottle away from direct sunlight and heat
Refrigerate after opening to slow oxidation
Keep tightly sealed — oxygen accelerates deterioration
Use within 12 months of opening for best aroma and efficacy
Keep out of reach of children and pets
DO NOT apply undiluted to skin — always dilute in a carrier oil or cosmetic base
