Castor Oil: Discover the remarkable benefits of this “Liquid Gold”

Thinning edges and brittle lashes? Skin that's dry no matter what you slather on it? Joints that complain every morning? Before you spend another small fortune on six different products, meet the one bottle your gran probably already swore by: castor oil — "liquid gold" with 4,000 years of use behind it and, increasingly, research to match.

Here's what it genuinely does well, how we'd use it (including the famous castor oil pack), and where the claims outrun the evidence.

What we'd suggest (the short version)

• Buy once, buy right: cold-pressed, hexane-free, organic. That's non-negotiable.
• Best uses, in our honest order: hair and scalp treatments, dry skin, brows and lashes, joint massage, and castor oil packs for liver and lymphatic support.
• Dilute it: it's thick — mix 1 part castor to 2 parts jojoba, coconut or almond oil for easy application.
• Give hair and lash results 4–6 weeks of consistent use before judging.
• As a laxative: it works, but occasionally only — food-grade oil, small dose, and not if you're pregnant.
• It's not magic: persistent hair loss, skin conditions or digestive trouble deserve a proper check-up, not just an oil.

What makes castor oil special

Pressed from the seeds of Ricinus communis, castor oil was used by the ancient Egyptians as medicine and beauty treatment, and has been an Ayurvedic staple for over 4,000 years. Its secret is chemistry: about 90% of its fatty acid content is ricinoleic acid, a rare fatty acid found in almost no other natural oil — the source of its anti-inflammatory, antimicrobial and deeply moisturising properties.

It also contains:

• Oleic acid — supports skin health and moisture retention
• Linoleic acid — an essential omega-6 that maintains the skin barrier
• Vitamin E — antioxidant protection for cells
• Minerals — including zinc, magnesium and calcium
• Stearic acid — cleansing and softening

1. For your skin

Ricinoleic acid's anti-inflammatory and antibacterial action makes castor oil useful for acne, dermatitis and psoriasis flare-ups, while its richness makes it a serious moisturiser — it penetrates deep rather than sitting on the surface. A 2012 study confirmed ricinoleic acid's anti-inflammatory activity is comparable to capsaicin.

• Night moisturiser: a few drops mixed into jojoba or sweet almond oil, applied before bed.
• Blemishes: dab directly onto spots with a cotton bud.
• Stretch marks and scars: massage in daily — ricinoleic acid supports tissue regeneration.
• Cracked heels: slather generously, cover with cotton socks, sleep. Thank us in the morning.

Working on skin from the inside too? Our skin, hair and nails supplements pair beautifully with topical castor oil.

2. For your hair, brows and lashes

This is the use we get asked about most. Castor oil's vitamin E, omega-6s and minerals nourish the scalp, while ricinoleic acid balances scalp pH and improves blood flow to the follicles — supporting growth, thickness and less breakage, and helping with dandruff and itchy scalp.

• Hot oil treatment: warm slightly, massage into scalp and lengths, wrap in a warm towel for 30–60 minutes, then shampoo out.
• Brows and lashes: a thin layer with a clean mascara wand before bed — most people see fuller results in 4–6 weeks.
• Scalp massage: mix with coconut or olive oil and massage 5–10 minutes to stimulate circulation.
• Split ends: a tiny amount on the tips seals and protects.

Tip: castor oil is gloriously thick — 1 part castor to 2 parts lighter oil makes application (and washing out) far easier.

3. For occasional constipation

Castor oil is FDA-recognised as a safe and effective stimulant laxative: enzymes in the small intestine release ricinoleic acid, which triggers the intestinal walls to contract. It works — usually within 2–6 hours — but treat it with respect:

• Only food-grade, cold-pressed oil for internal use
• Start with 1 teaspoon for adults, on an empty stomach
• Occasional use only — never a long-term constipation fix
• Not during pregnancy, and check with a healthcare practitioner if breastfeeding or on medication

If constipation is a regular visitor, the real fix is fibre, water and gut flora — see our gut health collection.

4. For lymphatic and immune support

Castor oil packs over the abdomen are believed to stimulate the lymphatic system — the network that moves infection-fighting white blood cells around your body. This traditional practice is popular in naturopathic circles, though robust clinical evidence remains limited. It's gentle, cheap, and the enforced 45 minutes of lying still is therapy in itself. Pair with our immunity range through winter.

5. For wound care

Research in the Journal of Clinical and Aesthetic Dermatology shows castor oil creates a moist healing environment that supports tissue growth. It reduces inflammation around the wound site, offers antimicrobial protection and may minimise scarring — in fact, Venelex, a clinical wound ointment, is built on castor oil and balsam of Peru. For minor cuts, scrapes and burns, a thin layer helps things along. (Anything deep, dirty or not healing: clinic, not cupboard.)

6. For liver support

Used as a pack over the liver area (right side of the abdomen), castor oil is traditionally used to support hepatic circulation and the body's natural detox pathways — many naturopathic practitioners in South Africa include packs in seasonal cleanse programmes. Combine with liver-supporting herbs like milk thistle from our herbal supplements range.

7. For joints and sore muscles

A study in Phytotherapy Research found topical ricinoleic acid has remarkable analgesic and anti-inflammatory effects. For arthritis, stiffness or post-gardening regret:

• Warm a little oil between your palms
• Massage into the joint in circles for 5–10 minutes
• Cover with a warm cloth or heat pad for 20–30 minutes
• Repeat daily

For the inside-out approach, see our joints and mobility collection.

8. For dry eyes — with a big caution

Some practitioners recommend a drop of sterile, pharmaceutical-grade castor oil before bed for dry eye syndrome — it slows tear evaporation overnight. This is the one use where we insist: speak to an ophthalmologist first, and never use ordinary cosmetic-grade oil in your eyes.

How to make a castor oil pack (the proper way)

The castor oil compress is the most therapeutic way to use this oil — popularised by Edgar Cayce and adopted by naturopaths worldwide.

You'll need

• Cold-pressed, hexane-free castor oil
• Unbleached wool flannel or cotton cloth, big enough for the treatment area
• Plastic wrap or a plastic sheet
• A hot water bottle or heating pad
• An old towel — castor oil stains, and it does not negotiate

Steps

1. Prepare: fold the cloth into 3–4 layers and saturate with oil — wet but not dripping.
2. Position: place over the target area (abdomen for liver/digestive support, or directly on sore joints).
3. Cover: layer plastic wrap over the cloth to protect clothes and couch.
4. Heat: hot water bottle or heating pad on top — warmth drives absorption.
5. Relax: 45–60 minutes. Read, breathe, do absolutely nothing. That's part of the medicine.
6. Clean up: wipe off excess; bicarbonate of soda in warm water cuts the residue.
7. Reuse: store the flannel in a glass jar or zip-lock bag in the fridge — it's good for 25–30 uses; just add a little fresh oil each time.

Skip the packs if: you're pregnant, menstruating heavily, or have broken skin over the area — and check with your doctor if you have any serious abdominal condition.

The honest bottom line

One affordable bottle covers your hair mask, brow serum, night oil, joint rub and Sunday-evening liver pack — that's why it's earned the "liquid gold" name. Just buy the cold-pressed organic kind, give it 4–6 weeks of consistency, and be honest with yourself about when a symptom needs a professional instead of a pantry remedy.

Want to know which grade of castor oil suits what you're treating? WhatsApp us on 076 913 5059 or pop into One Life Health at Centurion, Glen Village or Edenvale — we'll show you what we keep on our own bathroom shelves.

By Precious, One Life Health Consultant

From the apothecary shelf

A few products we'd hand a customer asking for a starting point. Not a paid placement — these are what we actually take, recommend, or keep at the front of the shelf.