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I have fine hair and I tried the TikTok viral rosemary hair growth oil shoppers are calling a 'game changer' – my honest thoughts

I've been using the rosemary oil for two months and I've already noticed improvements to my hair growth

split image hair and mielle oil
Sophie Bates
Commerce Writer
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Hair health has become a top trend across social media in 2024 so far, and like myself, so many others are prioritising their hair growth right now. Rosemary oil has taken the crown as the most talked about product in the hair care world, and hundreds of TikTokers have shared videos of their hair oiling routines using the Mielle Rosemary Mint & Scalp Hair Oil.

The hair oil has been praised for its hair growth abilities, which has caused the product to sell out on multiple occasions. I bleach my hair and I wear extensions, and in the last year, I've noticed thinning around my scalp area. I've been looking for a hair care buy that would help my hair to feel fuller while still being affordable, and with some research, Mielle seemed like the no-brainer answer I needed to try out for myself. 

mielle hair oil © Sophie Bates
I've been using the Mielle hair oil for a month

Retailing at £9.99/ $9.24 on Amazon, the rosemary oil is described as being designed for "daily use, scalp treatment, and split-end care". The oil comes with different instructions depending on what you're looking to work on. For scalp care, Mielle recommends sectioning out the hair, applying a small amount to each section massaging in using your hands or a brush, combing the product through to the ends, and leaving in. 

As improving hair growth is my main concern, I followed this method on my hair wash days. Rather than leaving the product in, I washed it out after about an hour. I think the oil could be a great leave-in treatment if you have thicker hair, but if you have fine hair as I do, I would recommend trying it as a wash-out treatment first to avoid weighing your hair down.

The first thing I noticed about the hair oil is the lovely mint scent that feels so fresh in your hair. I found the applicator super easy to use, as you can apply the oil to your hands or straight to your hair. 

I've been using the oil as a scalp treatment roughly once a week for two months, applying the product all over my scalp with a scalp massager as I find it gives the best coverage. On days when my hair is clean, I've been using the oil on my ends for hydration, and I'm really happy with the results. The oil doesn't make my hair feel greasy, and it gives the same glossy feel as other oils I've used before that have a much higher price tag.

personal pic hair © Sophie Bates
The Mielle oil made my fine hair feel fuller after a month

The Mielle oil has received generally positive reviews on Amazon, with several commenting on its fresh scent and how it has improved their hair growth. 

One wrote: "Smells like mint and tea trees. So fresh and clean. Easy to use, my hair growth has doubled since using. It used to take me a year to grow three inches; now, I get my hair trimmed at all my appointments. I bleached my hair, and it became damaged; I credit this with helping it feel soft and healthy again. I will purchase this again." 


This mielle oil got everyone in a chokehold…including me! This is the simple hair oiling routine ive been doing since November to help reduce my hair from thinning! 🔗 in comments to my amazon storefront list! #hairoiling #hairtok #lifestyle #hairoilforhairgrowth #hairoilingroutine #hairoil #thinninghairsolution #hairgrowthoil #miellehairoil #rosemaryoil #hairgrowth

♬ original sound - DJ Discretion

Another commented: "This is a little gem of a product that has really helped the edges of my hair. This is my third bottle from Amazon as the price is fantastic. The peppermint scent is lovely and not too overpowering and it lasts ages as a little goes a long way!"

Final thoughts on the viral Mielle Hair Oil

I've now been using the rosemary hair oil for two months, and I've definitely noticed more hair growth around my scalp, which is where I focus the oil the most. My hair also feels softer from applying the product to my ends, so I'm looking forward to seeing how it will benefit my hair long term (and I'll be sure to update this article as time goes on to update you with my hair growth journey). As the oil is suitable for all hair types and can be used in several different ways, I would definitely recommend trying the product if you've suffered from hair loss or would like to improve the general health of your hair. 

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