Botanical oilGrowth stimulationN° 003

Cold-Pressed Castor Oil

Ricinus communis

90% ricinoleic acid — the omega that pushes the dermal papilla.

Region
🇮🇳 Gujarat, India
Form
First-press vegetable oil
Shelf life
24 months, cool storage
Category
Botanical oil

01The brief.

Origin

Cultivated across the black-cotton soils of Gujarat and Rajasthan, the world's leading castor-producing regions (India supplies ~85% of global demand).

Extraction

First-press, hexane-free. Beans are hulled, cleaned, and cold-pressed under 40°C to preserve ricinoleic acid and vitamin E. The residual meal is composted, never solvent-extracted.

Concentration

Use neat, or diluted 30–50% into lighter oils for finer hair. On lashes/brows, one drop per side.

02How it works.

The 90% ricinoleic acid in cold-pressed castor oil binds to prostaglandin receptors on the dermal papilla, prolonging the hair's anagen phase. Its unusually high viscosity forms a semi-occlusive film that traps moisture inside the cuticle — which is why hair feels dramatically softer after one application.

CautionVery thick — always warm between palms and apply to damp hair, or dilute for fine strands. Never taken orally — the seed contains ricin (removed in cold-pressing the oil, but oral use of raw seed is toxic).

  • Benefits
  • ✦Thickens the strand shaft and darkens the appearance of thinning brows/lashes
  • ✦Seals in moisture, sealing split ends between salon visits
  • ✦Anti-fungal properties help calm flake-prone scalps
  • ✦Traditional remedy backed by centuries of Ayurvedic use

03Molecular signature.

The active constituents that make Cold-Pressed Castor Oil work — with standardised percentages where measured by HPLC.

  • Ricinoleic Acid (C18:1 ω-9)

    Hydroxylated fatty acid — binds prostaglandin receptors on the dermal papilla to prolong anagen.

    85–92%

  • Oleic Acid

    Cuticle-smoothing omega-9.

    3–5%

  • Linoleic Acid

    Barrier-supporting essential fatty acid.

    4–6%

  • Vitamin E (tocopherols)

    Natural antioxidant that stabilises the oil in-bottle.

04Signal profile.

EvidencePotencySafetyHeritageSensorySourcing

A living profile — the record that made Cold-Pressed Castor Oil the house's choice.

  • Evidence

    2 peer-reviewed sources

    74

  • Potency

    Standardised at 90%

    85

  • Safety

    Requires patch test

    62

  • Heritage

    Documented across 3 traditions

    80

  • Sensory

    Botanical oil profile

    88

  • Sourcing

    Traceable provenance

    92

05Heritage.

The record

Castor was buried with Egyptian nobility for cosmetic use in the afterlife — Ebers Papyrus (1550 BCE) documents its use as a scalp remedy. It appears in Sushruta Samhita (600 BCE) as an Ayurvedic hair oil, and Caribbean 'Jamaican Black Castor Oil' (roasted-bean variant) became the 20th-century global hair-growth staple.

Traditional use

Anointing oil in Ayurveda; Egyptian brow and lash blackener; Caribbean protective-styling sealant; West African braid finisher.

Naturally found in

  • ●Native to East Africa (Ethiopia and Kenya)
  • ●Cultivated commercially in India, Brazil, and China
  • ●Wild along riverbanks across the tropics

Sustainability

Castor plants are drought-hardy and grow on marginal soils where food crops fail. Our source cooperative pays growers a 12% premium above spot-market for verified pesticide-free harvest.

06Field → phial.

Every gram of Cold-Pressed Castor Oil passes five gates before it enters a Ghori formula. No shortcuts, no re-labels — the paper trail runs from soil to seal.

  1. 𖤣01

    Stage 01

    Harvest

    Cultivated across the black-cotton soils of Gujarat and Rajasthan, the world's leading castor-producing regions (India supplies ~85% of global demand).

  2. ❋02

    Stage 02

    Extract

    First-press, hexane-free. Beans are hulled, cleaned, and cold-pressed under 40°C to preserve ricinoleic acid and vitamin E. The residual meal is composted, never solvent-extracted.

  3. ◇03

    Stage 03

    Assay

    HPLC-verified. 90% standardised for ricinoleic acid content — the highest of any known oil.

  4. ◉04

    Stage 04

    Formulate

    Use neat, or diluted 30–50% into lighter oils for finer hair. On lashes/brows, one drop per side.

  5. ⌘05

    Stage 05

    Deliver

    Stable 24 months, cool storage. Sealed under nitrogen where required.

07Best for. Pairs with.

Best for

  • Sparse brows, lashes, and hairline edges
  • Dry, coarse, or over-processed hair
  • Split ends and mid-lengths that snap

Works well with

  • Rosemary Leaf Oil
  • Moringa Oleifera Oil
  • Vitamin E

08In 1 formula.

09People often ask.

Will castor oil really grow my eyebrows back?

It won't create new follicles, but it thickens and darkens the existing vellus hairs so brows look fuller within 6–8 weeks of nightly use.

How do I wash castor oil out?

Apply shampoo to dry hair first, emulsify with your fingers, then add water. Two washes are usually enough.

Cold-pressed vs Jamaican Black — which is better?

Cold-pressed is purer and less irritating; Jamaican Black is roasted (adding wood-ash alkalinity), which some find more penetrating but harsher. We chose cold-pressed for daily safety.

10The paper trail.

  1. 01McMullen R, et al. J Cosmet Sci. 2003 — Ricinoleic acid effects on hair conditioning.
  2. 02Vieira C, et al. Mediators Inflamm. 2000 — Anti-inflammatory activity of ricinoleic acid.

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