Mielle Mielle Organics Rosemary & Mint Strengthening Hair Oil product photo
Mielle

Mielle Organics Rosemary & Mint Strengthening Hair Oil

4.5 · 122k reviews
$9.40approx.
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Hand-picked and reviewed by our editors. As an Amazon Associate we earn from qualifying purchases.

Mielle Organics Rosemary & Mint Hair Oil is a lightweight, nutrient-rich treatment designed to strengthen and nourish hair from root to tip. Infused with biotin and essential oils, this formula targets frizz, split ends, and dry scalp while promoting longer, healthier-looking strands.

Ideal for those with damaged, brittle, or over-processed hair, this oil works well for all hair types, including natural, relaxed, and color-treated textures. It's especially beneficial for anyone seeking to improve hair strength and manageability without heavy buildup.

  • Strengthens hair with biotin to reduce breakage and split ends
  • Moisturizes dry scalp and soothes irritation with rosemary and mint
  • Tames frizz and adds shine without weighing hair down
  • Supports longer, healthier hair growth over time
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What shoppers say

★ 4.5average from 122k ratings on Amazon

Shoppers frequently praise the refreshing mint-and-rosemary scent and report noticeable scalp benefits after consistent use—particularly reduced dryness and a tingling sensation that feels therapeutic. Several reviewers noticed improved hairline density and healthier-looking strands within weeks, and appreciate that the dark glass bottle protects the formula.

A recurring caveat is that results require patience and regular application; at least one reviewer felt the product is somewhat overhyped for split-end repair and frizz control beyond the scalp. Those with fine or easily weighed-down hair may find the oil heavier than expected.

★★★★★ cort : ) Verified purchase Feb 21, 2024
Love the smell

I got this because I had some thinning along my hair line and wanted my many "baby hairs" to stop sticking up all over the place and needed something to help them grow. It's only been a month in, but I can already tell it is working. What I do is every night when I am doing my nightly routine washing my face/brushing teeth I first wash my face/get all my makeup off, and once I have used my cleanser then washed off I use this. I use this before putting my toner and serums on. I apply it all along the hairline and since this bottle comes with a dropper, it makes it precise and helps it not go everywhere. After I apply a few drops all along my hairline on my forehead I gently rub it in with my fingertips and then take a brow brush or brow spool and brush it in and back like im going to put my hair in a ponytail. I let that sit for about 20 minutes then wash it off with water. This is particularly good on nights if you use or apply masks or skin treatments, because you have to let the mask sit for a certain amount of time so doing this with it helps take care of both at once. I have also started to use this on my eyebrows as well to help with over plucking so I can grow my eyebrows back in and its really actually working! I have been trying so long to try and get my sparse hairs to grow in and full and nothing has worked but this stuff. I take a few drops and put it on each brow and rub it in the brow line then take a brow spooling and brush it in. Wait about 15 to 20 minutes then wash out with water then your done. The key is consistency and this will work. The smell is like a cleaner version of like a Vicks Vapor rub, but not super strong. I love using this stuff at night because it opens up my nasal passages before bed. This product comes in a glass jar with a glass dropper and rubber dropper head. This stuff really works! This stuff has done so good so far I can't wait to see what a few more months will do. Next I am going to start trying this stuff in my hair for split ends and I have full faith they are going to start looking fabulous 👌 Update** I'm so mad at myself, because I wish I would've taken a before picture to put with progress photos to show how much this has had an effect on my hair growth! This is doing great for my hairline, but I noticed alot of the reviews on this was for baby hairs and for regular hair growth, so I wanted to put forth some info on if and how well this does for other areas such as eyebrows, and let me tell you, this stuff is absolutely AMAZING for that! The photos above are my eyebrows at about 3 to 3 and 1/2 weeks in using this product. I only had hair where the inside of the green boxes are, and honestly the picture doesn't do it justice, because this product helped fill in those areas too. All the outside of the green boxes is from using this product. I cant believe what I'm seeing grow, it's amazing :) The picture with my lashes is to show where I apply this along my lash line where the green line is. Those are my natural lashes with nothing on them and this stuff has made them full and longer. (I do not apply the dropper itself along the lash line, after applying to my eyebrows and hair line when rubbing the product in I use what is left on my finger and swipe gently along the lash line.) I will update again to post another photo of what it looks like once I get to the 2 and 1/2 to 3 month mark. Update 2** So I said I would update on the 2 to 3 months mark, so I got those on the pictures now and the 5 month mark as well. The pictures speak for themselves, this stuff really works! I never thought I would be able to grow my eyebrows back in until I stumbled upon this little miracle in a jar. Absolutely amazing and I definitely recommend to others :)

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★★★★★ denise faragalli Verified purchase Feb 27, 2024
Best brand of castor oil!

I rarely write reviews, but I cannot gatekeep this any longer! My hair and scalp have NEVER been healthier. This oil allowed me to see the true potential my hair has by using it 2-3x a week and letting it sit for 30 min-4 hours. Packaging: It comes in a dark glass bottle with a convenient dropper for easy application. The packaging not only preserves the potency of the oil but also adds a touch of elegance to my beauty shelf. It's practical and aesthetically pleasing, reflecting the premium quality of the product inside. Quality: I opted for this brand to ensure that I'm using a product free from synthetic chemicals and pesticides. This oil is cold-pressed from organic rosemary leaves, retaining its natural nutrients and therapeutic properties. The organic certification gives me confidence in its purity and effectiveness, knowing that I'm nourishing my hair with only the best ingredients nature has to offer. Benefits: It offers a myriad of benefits for hair health and vitality. I massage a few drops of the oil into my scalp and hair, focusing on the roots and dry ends. The oil's lightweight texture absorbs quickly without leaving any greasy residue, making it suitable for all hair types. Regular use has helped to strengthen my hair, reduce breakage, and improve overall hair texture. My locks appear shinier, smoother, and more manageable, with a noticeable boost in volume and thickness. Hair Growth: One of the most remarkable benefits of organic rosemary hair oil is its ability to stimulate hair growth. Rosemary essential oil is known for its scalp-stimulating properties, which promote blood circulation and encourage hair follicle health. I've noticed new hair growth in areas where my hair was previously thinning, resulting in a fuller and more luscious mane. Scent: The invigorating scent of organic rosemary hair oil is an added bonus to its hair care benefits. The refreshing aroma uplifts the senses and provides a rejuvenating experience during each application. It's like having a spa day for my hair and scalp in the comfort of my own home. Conclusion: In conclusion, organic rosemary hair oil is a true game-changer in my hair care routine. Its high-quality, organic formulation, coupled with its numerous benefits for hair growth, strength, and texture, makes it an indispensable part of my beauty arsenal. Whether you're looking to revitalize dull and damaged hair or simply enhance your hair's natural beauty, organic rosemary hair oil is a must-try. I highly recommend incorporating it into your hair care routine for healthier, more radiant locks.

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★★★★★ caitlyn23 Verified purchase Jul 12, 2025
Great

Mielle Organics Rosemary & Mint Hair Oil** I recently tried the Mielle Organics Rosemary & Mint Hair Oil, and I’m absolutely thrilled with the results! This 2 fl oz bottle packs a punch with its blend of biotin and essential oils, making it a must-have for anyone dealing with split ends and dry scalp. First off, the scent is delightful! The rosemary and mint combination is invigorating and refreshing, making each application feel like a mini spa treatment. I love how it lingers subtly throughout the day without being overpowering. As for the performance, this hair oil has transformed my hair care routine. I’ve noticed a significant reduction in split ends and an overall improvement in the moisture levels of my scalp. The oil absorbs quickly without leaving a greasy residue, which is a huge plus for me. I typically apply it directly to my scalp and the ends of my hair, and it instantly feels more nourished and hydrated. The infusion of biotin is a game changer. After a few weeks of use, my hair feels stronger and looks healthier. I’ve even noticed a bit of new growth, which is an added bonus! This oil is also versatile; I’ve used it as a pre-shampoo treatment and as a finishing touch for added shine, and both methods have yielded fantastic results. In terms of value, I find it to be worth the price. A little goes a long way, and considering the quality of the ingredients and the positive impact on my hair, I’d gladly repurchase it. If you’re looking for a product that effectively addresses split ends and dry scalp while promoting overall hair health, I highly recommend giving Mielle Organics Rosemary & Mint Hair Oil a try! It’s been a wonderful addition to my hair care arsenal.

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★★★★★ Nordii Verified purchase Apr 4, 2026
Miellle oil

I’ve been using a few products from Mielle, especially the Mielle Organics Rosemary Mint Scalp & Hair Strengthening Oil and the Mielle Organics Pomegranate & Honey Leave-In Conditioner, and my experience has been mostly positive with a few downsides. First, the moisture is really good, especially for 4C hair. The leave-in conditioner makes my hair softer and easier to detangle, which is a big plus. The oil also feels very nourishing and helps with keeping my scalp hydrated. It’s made with a mix of essential oils and ingredients like biotin that are meant to support stronger, healthier hair over time. I did notice that my hair feels stronger and looks healthier, especially when I keep it in protective styles. A lot of people use the oil for growth, and while I can’t say it’s a miracle product, it definitely helps create a healthier scalp environment, which is important for growth.

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★★★ SAIPRADEEP MEKALA Verified purchase May 22, 2026
Good for Scalp, Overhyped for Everything Else

I’ve been using the Mielle Rosemary & Mint Hair Oil for scalp treatments, frizz control, and split ends — so I’ve put it through its paces. The standout for me was the scalp feel; it does soothe dryness and the tingling sensation from the mint is refreshing and makes it feel like it’s working. Beyond that, results were middling. It didn’t do much for frizz or split ends that a regular hair oil wouldn’t also achieve. The rosemary scent is strong, which some will love but can be a bit much. The 2oz bottle also goes fast if you’re using it multiple ways. Decent for scalp care specifically, but I wouldn’t lean on it as an all-in-one hair treatment.

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Reviews are from verified Amazon customers, shown for reference. We don't edit or endorse individual reviews.

Mielle Organics Rosemary & Mint Strengthening Hair Oil: frequently asked questions

What is Mielle Rosemary & Mint Strengthening Hair Oil and who is it for?

Mielle Organics Rosemary & Mint Strengthening Hair Oil is a lightweight scalp and hair treatment oil built around rosemary and peppermint—two botanicals with a long history of use in hair-care routines. It's formulated for people dealing with thinning edges, breakage, or a dry, itchy scalp, and works across hair types, though it's particularly popular in the natural and textured hair community.

The oil can be massaged directly into the scalp or used as a pre-shampoo treatment. Pairing it with a tool like the HEETA Scalp Massager Shampoo Brush can help with absorption and circulation.

Does Mielle rosemary mint oil regrow hair?

Rosemary has shown promise in small studies for supporting scalp circulation, which may create a better environment for hair growth—but no topical oil can guarantee regrowth, and Mielle makes no FDA-approved drug claim. Users with thinning related to scalp health or tension-related breakage tend to report the most noticeable improvement.

Results vary widely depending on the underlying cause of hair loss. If shedding is significant or sudden, a dermatologist visit is the more useful first step than any over-the-counter oil.

How long does it take for Mielle Rosemary Oil to work?

Most users who see results report noticing changes in scalp condition—less dryness, reduced itchiness—within a few weeks of consistent use. Visible changes in hair density or edge fullness, if they occur, typically take two to four months of regular application, which aligns with the normal hair growth cycle.

Consistency matters more than frequency. Using the oil two to three times a week with a proper scalp massage is more effective than occasional heavy applications.

What happens if I put rosemary oil on my hair every day?

Daily use of Mielle's formula is generally tolerable for most scalp types, but applying it every day can cause buildup on the scalp, which may block follicles or leave hair looking greasy—especially on fine or low-porosity hair. Those with sensitive or oily scalps may also notice irritation with daily application.

A practical routine is two to three times per week, massaging into the scalp and washing out after a few hours or the next morning. Listen to how your scalp responds and adjust accordingly.

What are the side effects of Mielle Rosemary Oil?

For most users, side effects are mild: a cooling or tingling sensation from the mint is normal and not a sign of irritation. However, some individuals with sensitive scalps have reported dryness, flaking, or itching with regular use. As with any oil formula, allergic reactions to individual botanical ingredients are possible, so a patch test is a smart first step.

Apply a small amount to your inner wrist or behind your ear and wait 24 hours before full scalp use if you have reactive skin.

What is the lawsuit against Mielle, and has the oil been linked to hair loss?

Starting around 2023, a wave of social media complaints and some class-action filings alleged that Mielle's Rosemary Mint Oil caused shedding and scalp issues, with some users claiming the formula had changed. Mielle disputed those claims and, as of this writing, no FDA recall has been issued for the product.

It's worth noting that some reported "hair loss" after starting an oil can reflect pre-existing shedding that becomes more visible when detangling, not a product reaction. That said, anyone who experiences unusual scalp irritation, shedding, or breakage after use should discontinue and consult a dermatologist.

Is Mielle Rosemary & Mint Hair Oil still safe to use?

There is no active FDA recall on this product, and many users continue to use it without issue. The allegations of hair loss prompted significant public concern, but no regulatory action has confirmed a safety defect in the current formula. If you already own the product and have been using it without problems, current guidance doesn't require stopping.

If you're cautious or prefer a purer option, a straight rosemary essential oil diluted in a carrier like jojoba—such as SVA Rosemary Essential Oil—gives you more control over exactly what's on your scalp.

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