Castor Oil Packs
Topical castor oil application with heat for lymphatic support, digestive health, and relaxation
Bottom Line
Castor oil packs are a traditional naturopathic remedy with limited but intriguing research. The evidence for lymphatic stimulation and anti-inflammatory effects is preliminary but promising. Many users report subjective benefits for digestion, menstrual discomfort, and relaxation.
Low-risk, inexpensive intervention with a long history of traditional use. Scientific evidence is weak, but anecdotal reports are consistently positive. Worth trying if you're drawn to gentle, natural approaches.
Science
Proposed mechanisms:
- Ricinoleic acid (90% of castor oil) binds to EP3 prostanoid receptors
- May stimulate smooth muscle contraction (hence laxative effect)
- Proposed lymphatic stimulation via topical absorption
- Heat application enhances circulation and relaxation
- Anti-inflammatory effects demonstrated in animal studies
Key studies:
- Grady (1998): Castor oil packs increased lymphocyte counts in small study
- Arslan & Eser (2009): Castor oil effective for constipation in elderly
- Vieira et al. (2000): Ricinoleic acid showed anti-inflammatory properties
What the evidence shows:
- Laxative effect: Well-established (oral use)
- Lymphatic stimulation: Preliminary (one small study)
- Anti-inflammatory: Supported in animal models
- Skin penetration: Ricinoleic acid does absorb transdermally
- Relaxation: Likely from heat + ritual + parasympathetic activation
Limitations:
- Very few human studies on topical packs
- Most evidence extrapolated from oral use or animal studies
- Mechanisms for topical benefits not fully understood
- Placebo effect likely contributes to reported benefits
Supporting Studies
3 peer-reviewed studies
View all studies & compare research →Practical Protocol
Basic castor oil pack protocol:
- Soak flannel cloth in cold-pressed castor oil (saturated but not dripping)
- Place over target area (liver/abdomen most common)
- Cover with plastic wrap or old towel
- Apply heat source (hot water bottle, heating pad)
- Relax for 45-60 minutes
- Remove and clean skin with baking soda + water solution
- Store flannel in glass jar for reuse (up to 30 uses)
Target areas:
| Area | Traditional Use |
|---|---|
| Right side/liver | Liver support, detox |
| Lower abdomen | Menstrual support, digestion |
| Joints | Pain, inflammation |
| Thyroid | Thyroid support (less common) |
Frequency:
- Therapeutic: 3-4 times per week for 4-6 weeks
- Maintenance: 1-2 times per week
- Acute issues: Daily for short periods
Timing:
- Evening preferred (promotes relaxation)
- Not during menstruation (traditional guidance)
- Not during pregnancy
- Allow 2+ hours after eating
Common mistakes:
- Using refined castor oil (use cold-pressed, hexane-free)
- Not enough oil (flannel should be saturated)
- Too short duration (<30 min may be insufficient)
- Skipping the heat (heat enhances effects)
- Staining good clothes/sheets (castor oil stains)
Risks & Side Effects
Known risks:
- Skin irritation in sensitive individuals (patch test first)
- Staining of fabric (use old towels/clothes)
- Digestive upset if ingested in large amounts
- Potential allergic reaction (rare)
Contraindications:
- Pregnancy (traditionally contraindicated)
- Breastfeeding (insufficient safety data)
- During menstruation (traditional guidance)
- Open wounds or broken skin
- Active abdominal inflammation or appendicitis
- Intestinal obstruction
Precautions:
- Patch test on small area first
- Use only externally (not for oral use in pack form)
- Protect bedding and clothing from stains
- Don't use on face or sensitive areas
Risk level: Very low when used externally as directed.
Who It's For
Ideal for:
- Those interested in gentle, traditional remedies
- People seeking relaxation rituals
- Women with menstrual discomfort (outside of period)
- Anyone with sluggish digestion
- Those who enjoy self-care practices
- Integrative/naturopathic health enthusiasts
Especially popular for:
- Liver support protocols
- Pre-conception preparation
- Digestive sluggishness
- General "detox" support
- Relaxation and stress relief
May not be ideal for:
- Those wanting strong scientific evidence
- People sensitive to oils on skin
- Anyone with contraindications above
- Those who dislike messy protocols
How to Track Results
What to measure:
- Subjective wellbeing (1-10 scale)
- Digestive function (bowel regularity)
- Menstrual symptoms (if applicable)
- Sleep quality (if doing evening packs)
- Relaxation level during/after
Journaling prompts:
- Energy levels day after pack
- Digestive comfort
- Any skin reactions
- Overall sense of wellbeing
Timeline:
- Immediate: Relaxation, warmth
- 1-2 weeks: Possible digestive improvements
- 4-6 weeks: Traditional protocol duration for deeper effects
Signs it's working:
- Improved bowel regularity
- Better sleep on pack nights
- Reduced bloating
- General sense of wellbeing
- Relaxation response during use
Top Products
Castor oil:
- Heritage Store Castor Oil - $10-15, cold-pressed, hexane-free
- Queen of Thrones Castor Oil - $25-35, popular in wellness community
- Sky Organics Castor Oil - $10-15, organic option
Pack kits:
- Queen of Thrones Castor Oil Pack - $30-50, less mess design
- Castor oil pack kit with flannel - $15-25, traditional setup
DIY supplies:
- Organic cotton flannel - $10-15
- Hot water bottle - $15-20
- Glass jar for storage - $5
What to look for:
- Cold-pressed, hexane-free castor oil
- Organic preferred
- Unbleached cotton flannel
- Dark glass bottle (protects oil)
What to avoid:
- Refined or processed castor oil
- Synthetic flannel materials
- Plastic storage containers
Cost Breakdown
DIY setup ($20-40):
- Castor oil (16 oz): $10-15
- Cotton flannel: $10-15
- Hot water bottle: $15 (or use existing heating pad)
- Glass jar: $5
Pre-made kit ($30-60):
- Queen of Thrones or similar kit
- More convenient, less messy
- Good for beginners
Ongoing costs:
- Oil refill every 2-3 months: $10-15
- Flannel replacement every 6-12 months: $10
Cost-per-benefit assessment:
Very affordable. A $30 setup lasts months. One of the cheapest wellness interventions available.
Recommended Reading
- The Oil That Heals View →
Podcasts
My AM/PM Full Body Castor Oil Routine for Skin Rejuvenation - 1120
Chalene Johnson shares her comprehensive AM/PM castor oil routine, covering all the ways she...
#74: Unlocking the Power of Castor Oil Packs for Energetics and Healing with Dr. Marisol Teijeiro
Dr. Marisol Teijeiro, naturopathic doctor and founder of Queen of the Thrones, joins Margaret...
214. The Magic of Castor Oil Packs for Detox and Hormones with Marisol Teijeiro
Dr. Marisol Teijeiro joins Samantha Gladysh on The Wellness Witch Podcast to break down the...
53. Castor Oil Packs For Liver Detox, Thyroid, and Skin
Margaret, a holistic nutritionist, delivers a concise solo crash course on castor oil packs...
Discussed in Podcasts
28 curated moments from top health podcasts. Click any timestamp to play.
Castor oil as a natural anti-inflammatory and microbiome balancer
Dr. Marisol explains the unique biochemistry of castor oil, including its ricinoleic acid that mimics prostaglandins, its pain-relieving properties via substance P reduction, and its nitric oxide-promoting effects that balance the microbiome and break down biofilm.
"Castor oil is this most unique oil. No other oil compares to it. Its chemical structure is completely unique. It actually looks and mimics very much something known as a prostaglandin, which is a natural anti-inflammatory created by our body."
How stress and inflammation shut down detox pathways
Marisol identifies stress and inflammation as the two root causes of disease, explaining that when both are elevated, the body shuts down its ability to liver detox, lymphatic drain, and colon cleanse. Castor oil packs uniquely address both.
"Stress and inflammation impact how our bodies able to naturally liver detox, lymphatic drain and colon cleanse, right? Because those functions shut down when we're in stress state."
The castor oil pack as a tool for nervous system regulation and oxytocin
After years of trying magnesium, GABA, valerian, and melatonin to calm down, Marisol realized she was missing a big shot of oxytocin. The castor oil pack was the first tool that taught her body how to self-soothe and move into a relaxed state.
"I couldn't take enough magnesium. I couldn't take enough GABA. I couldn't take enough valerian. I couldn't take enough melatonin. I couldn't take enough of those things to calm my body down because what I was missing was a big shot of oxytocin every single night."
Testing 13 Amazon castor oil brands revealed alarming quality issues
Dr. Marisol tested 13 castor oil brands from Amazon and found many were oxidized, rancid, contained false label claims, or were not even castor oil at all, highlighting why quality sourcing matters.
"on the table. So many were oxidized. So many were rancid. So many weren't even castor oil. So many had false label claims. So you really need to know your manufacturer of castor oil. And especially because it is the most deeply hydrating, deeply hydrating and richly nourishing oil that exists. And that's why..."
Evening castor oil beauty ritual for face, eyes, and lashes
Marisol describes her nightly routine: wash face with castor oil and a steamed cloth, apply extra around eyes for fine lines and dark circles, then use a spoolie to apply to eyelashes and eyebrows before putting on a beauty sleep eye mask.
"I will take a steamed cloth. I'll steam my face. Then I'll take a dime-sized, quarter-sized amount of castor oil. And then I'll put it in my hands and I'll rub all of that on my face."
Golden vs black castor oil for different hair types
Marisol explains the distinction between golden and black castor oil: golden for skin and lighter hair types, black (which contains ash from burning) for darker skin tones and kinky, curly, coily hair types due to its slightly more alkaline nature.
"But this is also why you also want to make sure that castor oil is never sitting in plastic. Very, very key because oils in general should never be mixed with plastic because oils are how things get carried into our body from the outside world. And toxins are what's called as lipophilic. So they're actually oil-based toxins."
Castor oil as full-body moisturizer — the occlusive properties that lock in skin moisture
Chalene explains how castor oil's occlusive properties trap moisture in the skin, making it especially valuable during perimenopause and menopause when the skin loses its moisture barrier. She applies it head to toe after every shower.
"The racinoleic acid, the vitamin E, it is one of the most occlusive oils available. And what does that mean? It means it traps moisture in your skin."
Evidence-based perspective on castor oil packs for detox and immunity
Dr. Neal Malik explains castor oil packs from an evidence-based perspective, noting that while well-designed studies are limited, the packs are unlikely to cause harm and the belief effect can trigger real cascading health benefits through better sleep, diet, and movement.
"Whether castor oil packs actually help the liver clean the blood or improve lymphatic drainage and help the immune system is hard to say. What often happens when folks use these types of therapies is that they believe it will make them feel better. So, sometimes just that belief will in fact make a person feel better."
Castor oil packs for endometriosis pain relief after one month
After wearing castor oil packs daily for one month, Meg reports significantly less menstrual pain. Where she previously had one night per cycle where she could not sleep due to pain, that did not happen after starting daily pack use.
"My period gets so bad that there's usually one night every single cycle that I don't sleep because my period pain is so bad. And that did not happen this time."
The liver-thyroid connection and why castor oil packs support both
Meg explains that the liver converts inactive T4 thyroid hormone to active T3, so supporting the liver with castor oil packs also supports thyroid function and by extension hormonal balance.
"The liver actually converts inactive T4 to active T3. So not a lot of people think about in order to support the thyroid, we're also wanting to look at the liver and be supporting the liver."
How castor oil packs promote deep sleep through parasympathetic activation
Meg describes getting deeply sleepy within two hours of putting on her castor oil pack in the evening, experiencing a quality of rest she had not felt before, supporting her nervous system transition into deep sleep.
"I get so sleepy for bed like it it's like that good kind of feeling right like I'm sitting on the couch I'm reading my book and it's that feeling where I'm you just cannot like even read another paragraph because you're so sleepy."
Castor oil packs as the missing link for chronic fatigue recovery
Dr. Marisol describes how after doing everything right in naturopathic school, she finally tried a castor oil pack and experienced a profound shift, feeling like the sky opened up and angels began to sing, marking the beginning of her true healing.
"I've got nothing to lose now. You know, I'm in bed. I can't get out of bed. So I may as well try this thing."
Who to Follow
Practitioners:
- Edgar Cayce - Popularized castor oil packs in readings (historical)
- Dr. Marisol Teijeiro (Queen of Thrones) - Modern castor oil pack advocate
- Dr. John Douillard - Ayurvedic practitioner who recommends packs
Communities:
- Naturopathic medicine
- Functional medicine
- Ayurvedic practitioners
- Fertility/preconception communities
Synergies & Conflicts
Pairs well with:
- Dry brushing - Both target lymphatic system
- Sauna - Heat therapies complement each other
- Liver support - Traditional liver support protocol
- Magnesium - Epsom salt bath + castor oil pack combo
Protocol stacks:
- Lymphatic support: Dry brushing → castor oil pack → rebounding
- Relaxation evening: Castor oil pack → /magnesium → sleep
- Digestive reset: Castor oil packs + /time-restricted-eating
Timing considerations:
- Best done in evening (relaxing)
- Can combine with meditation or reading
- Some do before bed for sleep benefits
- Avoid immediately after meals
What People Say
Online communities:
Common positive reports:
Common complaints: