I used castor oil for the first time in 2022 for a skin-and-wrinkle test. It's often called a miracle oil for hair growth. But as a doctor, I am naturally cautious about claims like that. So in January 2026, I devoted five months to a hair-growth test by comparing five of the top castor oil brands.
Because of the remarkable results I saw during my castor oil skin-and-wrinkle test, I must confess that I already had a bias in favor of one castor oil. But as a doctor, I still had to compare each oil fairly for the best castor oil for hair growth test.
Over the previous three months before the test, I had already tracked my usual hair growth at 0.4 inches a month.
For this review, I tested five brands with one question in mind: if I used castor oil on my scalp at night, would my hair grow faster than it had been growing before? I paid attention to how each oil was made and whether the results matched the claims. This review explains why I ranked one above another and which oil I would choose first.
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5 Best Organic Castor Oils of 2026
Seven Minerals Organic Castor Oil: Best Overall (Shop Now) →
The Goodbye Company Organic Castor Oil: Runner-Up (Shop Now) →
Ella & Eden Organic Castor Oil: Best Value (Shop Now) →
Queen of the Thrones Organic Castor Oil: Best TikTok Favorite (Shop Now) →
UpNature Organic Castor Oil: Budget-Friendly Pick (Shop Now) →
Medical Disclaimer: This article is for informational purposes only and does not replace professional medical advice, diagnosis, or treatment.
Seven Minerals Organic Castor Oil
Best Overall
This is the same brand I used during my 2022 skin-and-wrinkle test. The results from that earlier test are part of why I trusted Seven Minerals castor oil enough to test it again for hair growth.
When you use a quality castor oil, the results can be 3× better than what people see with poor-quality oils. At night, I applied the Seven Minerals oil to my scalp before bed and massaged it in.
The texture is not like a light hair serum. It’s richer and heavier. I focused mostly on the areas where I wanted my hair to look fuller. And in the morning, I washed it off thoroughly.
After two days, my hair felt less dry and looked fuller after washing. The ends also seemed less brittle.
But I was not the only one who noticed the difference. My wife did, too. And two female colleagues also commented that my hair looked fuller, without knowing I had been using castor oil at night.
I started using Seven Minerals castor oil on 1 January 2026 and measured my hair length on 31 January. Usually by this time, the tips of my hair would be touching a little mole on my neck. This time, it was 4 inches below the mole. So during the four-week test, my hair grew 0.8 inches. That’s an extra 2 inches more than my normal hair-growth rate.
I do not consider 0.8 inches of growth in one month a universal promise. But this was my measured result. Besides the hair growth, I like that this castor oil has almost no smell, feels rich, and comes with a quality pump dispenser. And finally, I value that it is USDA-certified organic. That said, if someone asked me which oil is the best castor oil for hair growth, skin, and brows, this would be my choice.
What I Liked Most
✔ Hair grew 0.8 inches in 4 weeks
✔ USDA-certified organic castor oil
✔ Cold-pressed and unrefined
✔ Hexane-free extraction
✔ High ricinoleic acid content
✔ Thick, pure oil with no fillers
Noteworthy
- ~ 9K+ people bought it this month
- ~ Highest rated castor oil
- ~ Best castor oil for hair growth
The Goodbye Company Organic Castor Oil
Runner-Up
Can you eat castor oil? Castor oil can only be ingested when it’s specifically labeled as food-grade. The Goodbye Company organic castor oil is the only oil that specifies “92% ricinoleic acid.” And the oil itself is food-grade and USP-pure. Most castor oils are intended for skin and hair only. Because this one is produced clean enough for ingestion, it immediately raises the bar on how it’s sourced and processed. It’s cold-pressed, hexane-free, extra virgin, and made in small batches tied to family farms rather than mass suppliers.
Castor oil is not something you eat for hair growth. There is no good evidence that swallowing castor oil makes hair grow thicker or faster. Food-grade castor oil is used as a laxative when taken according to the label, but that higher purity standard also makes it one of the best-quality oils for use on the scalp, hair, skin, and in castor oil packs.
I started using this oil on my scalp on 1 February 2026 and continued using it a into March. This is the highest quality oil for hair, skin, and nails on this list, but it is also the highest price. What’s interesting is that about 50% of people choosing a castor, choose this one, despite the price. I used it in two ways: on my scalp and on my eyebrows. With every use, I felt like I was rubbing something precious into my hair.
For eyebrows, I applied a tiny amount at night. That is all you need. As for my hair, it grew 0.8 inches again in the month of February. So it grew at the same rate as the Seven Minerals castor oil. Moreover, my brows looked better after the first 2 weeks. Fuller? Slightly. Healthier-looking? Yes.
My final verdict? Because of the price of this oil, I used it sparingly and carefully. The 8.5-ounce bottle ran out just at the 4-week mark. Ultimately, if I needed a food-grade oil, was using castor oil packs, wanted to relieve constipation, or if budget was not a concern for me (it is), this is the only castor oil I would choose.
What I Liked Most
✔ 4.7-star rating from 4,040+ reviews
✔ Cold-pressed and hexane-free
✔ USDA organic and non-GMO
✔ Amber glass bottle to protect the oil
✔ Small-batch, USA-produced
✔ Works for packs, scalp, lashes, brows, and skin use
Noteworthy
- ~ Awarded “Best Food-Grade Castor Oil.”
~ Highest quality oil for hair, skin, and nails
Ella & Eden Organic Castor Oil
Most Innovative
The Ella & Eden organic castor oil got my attention because I saw it featured in Forbes, and then the affordable price made me look twice.
This castor oil is for the person who wants organic quality without making the purchase feel precious. If you apply castor oil often—to your scalp, face, lashes, or feet—this oil is especially for people focused on hair and scalp use. Many buyers choose this one in the larger sizes, including the 32-ounce bottle, because the cost per ounce drops significantly. That makes it appealing if you’re doing scalp treatments several times a week and you’re looking for an affordable organic castor oil.
I used it on my eyebrows every night and on my hair roughly three times a week. For brows, feet, dry skin, and general beauty use, this one is an affordable pick.
What I Liked Most
✔ 4.6-star rating
✔ USDA-certified organic castor oil
✔ Cold-pressed and unrefined
✔ Hexane-free extraction
✔ Dark glass bottle to protect potency
✔ Screw-on pump for cleaner, controlled use
✔ Available in 4 oz, 16 oz, and 32 oz sizes
Noteworthy
- ~ 2K+ people bought it this month
Queen of the Thrones Organic Castor Oil
Best TikTok Favorite
The Queen of the Thrones organic castor oil has already sold 7,000 bottles this month—and it’s only the 7th. It’s the one you’ve probably seen all over YouTube, TikTok, and castor oil pack videos. It carries two sustainability features, which matter to buyers who look beyond the label and into how a product is sourced, bottled, and tested. In essence, it’s practitioner-grade and clearly positioned that way.
For hair growth, my wife and I disagree on the best castor oil, and neither of us is likely to change. Seven Minerals is my top choice, but Queen of the Thrones is hers. She likes the fact that it’s extra virgin, has a slightly thinner feel, and comes from a company whose values appeal to her.
It has a serious wellness feel, and the packaging supports that. It’s still thick and smooth, but clearly designed for people who want a high-quality oil. While I was using it, I felt like the volume of my hair was more, but at this stage, I had been using castor oil on my scalp for three months.
This is the oil I would consider if someone already knows they want to use castor oil packs or wants a brand with a strong wellness following. It has that practitioner-style positioning, and some buyers, like my wife, prefer that.
What I Liked Most
✔ 4.7-star rating
✔ USDA-certified organic castor oil
✔ Cold-pressed and hexane-free
✔ Amber glass bottle to protect the oil
✔ Third-party tested for purity
✔ Two sustainability features
✔ Made for face, scalp, lashes, brows, and body use
Noteworthy
- ~ 7K+ people bought it this month
UpNature Organic Castor Oil
Best Value
The UpNature Organic Castor Oil is the cheapest oil on this list. And it comes with a screw-on pump for clean dispensing and a mascara-style applicator designed specifically for lashes and brows.
The oil itself has the expected thick texture that people look for. People reach for it to condition the scalp, reduce breakage, and support fuller-looking lashes and brows.
I only used this oil on my eyelashes because it came with a mascara applicator. After 4 weeks, my lashes looked a little more noticeable after consistent use. Of course, this brand isn’t positioned as practitioner-grade. But for price-conscious buyers who want organic sourcing, glass packaging, and accessories included, this one is the best castor oil for hair growth.
What I Liked Most
✔ 4.7-star rating
✔ USDA-certified organic castor oil
✔ Cold-pressed and unrefined
✔ Hexane-free extraction
✔ Includes pump for cleaner application
✔ Includes mascara wand for lashes and brows
✔ Dark glass bottle to protect potency
Noteworthy
- ~ Cheapest castor oil
- ~ 2K+ people bought it this month
What I Learned After Testing Five Castor Oils
I went into this test with healthy skepticism.
Castor oil has been given credit for almost everything: hair growth, thicker brows, glowing skin, softer wrinkles, digestive relief, neck tension, castor oil packs, dry feet, lashes, and scalp health.
With Seven Minerals, I measured 0.8 inches of hair growth in the first month. As I continued testing the other castor oils, my monthly growth stayed between 0.6 and 0.8 inches, so the growth results were not wildly different from one bottle to the next. Seven Minerals remained my best castor oil for hair growth because I liked the quality of the oil, the price, and the fact that it had no noticeable smell.
My strongest quality impression came from The Goodbye Company because of its food-grade oil.
My most value oil was Ella & Eden.
My best wellness-pack oil was Queen of the Thrones.
My best budget oil was UpNature.
If I were choosing only one best castor oil for hair growth, I would choose Seven Minerals. It gave me the extra length and volume I wanted, had the quality markers I look for, and I liked the smell.
How I Would Use Castor Oil for Hair
Use it at night.
Apply a small amount to the scalp.
Massage it in with your fingertips.
Do not soak the hair.
Sleep with it on.
Wash it out thoroughly in the morning.
Repeat for four weeks before judging the result.
I would also take a starting measurement. Do not guess. Use the same ruler or tape measure. Track the same area. Then compare after four weeks.
My Final Takeaway
The oil I would buy again first is Seven Minerals organic castor oil.
It gave me the volume I was hoping for, and it was already the castor oil I trusted from my earlier skin experience. After four weeks of nighttime scalp use, my hair measured 0.8 inches longer.
I do not believe every castor oil deserves the same reputation. The bottle matters. The extraction method matters. And of course the quality of the oil matters.
Ultimately, choose organic. Choose cold-pressed. Choose hexane-free. Choose a dark glass bottle. And use less than you think you need.
Then give it four weeks.
Best Castor Oil for Hair Growth FAQs
How to use castor oil for hair growth and thickness?
It’s better to use castor oil at night. Apply a small amount to your scalp, massage it in with your fingertips, and focus on the areas where you want your hair to look thicker. Do not soak your hair with oil. Castor oil is heavy, so too much can make it difficult to wash out. In the morning, shampoo it out properly.
What is the top rated castor oil for hair growth?
Seven Minerals is the one I would choose first for hair growth. It’s the oil I liked most because of the quality, the price, the texture, and the fact that it does not have a strong smell. If you want the highest-quality food-grade oil, The Goodbye Company is the better choice. If budget matters most, Ella & Eden or UpNature are the affordable oils.
What is the best rosemary and castor oil for hair growth?
The Seven Minerals rosemary and castor oil is the one I would look at first. It gives you castor oil and rosemary in one bottle, so you do not have to mix the two yourself.
What is best castor oil for hair growth Amazon?
The best castor oil for hair growth on Amazon is Seven Minerals if you want my overall pick. The Goodbye Company is better if you want food-grade quality. Ella & Eden is a good affordable oil. And UpNature is the budget oil.
What is the best organic castor oil for hair growth?
The best organic castor oil for hair growth is Seven Minerals. The second one I would consider is The Goodbye Company because it’s food-grade, USP-pure, and very high quality. For hair growth and volume, I would choose Seven Minerals first. If food-grade purity matters more than price, I would choose The Goodbye Company.
What is the best brand of castor oil for hair growth?
The best brand depends on what you need. Seven Minerals is my overall choice for hair growth. The Goodbye Company is best for food-grade quality. Ella & Eden is best for affordability. Queen of the Thrones is best for castor oil packs. And UpNature is best if you want the cheapest oil that’s still organic.
What castor oil is good for hair growth?
A good castor oil for hair growth should be organic, cold-pressed, unrefined, hexane-free, and stored in a dark glass bottle. Seven Minerals is the one I would choose first. The Goodbye Company is also excellent if you want food-grade quality. Ella & Eden and UpNature are good oils if you want something more affordable.