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Does Mielle rosemary oil cause hair loss? Netizens claim it does. We found a few viral TikTok videos that have gotten over 4 million views on this topic.
People are concerned about unusual hair loss. Losing a hundred hairs every day is quite natural. Many people complained that their hair fell out in clumps and they noticed bald spots when using these products.
Many share videos showing clumps of fallen hair. Given the number of similar reports, this issue needs a closer look.
What Sparked the Mielle Hair Loss Controversy?
The Mielle hair loss drama started in September 2024. Many customers found their hair falling out in clumps.
It all began when TikTok star Bethanny showed her hair falling out in a video. She blamed Mielle products. Her video got 4 million views in a short time.
Soon, more people with natural hair shared similar stories. They noticed hair loss during wash days, but didn't connect it to the products earlier.
Videos tagged "Mielle hair loss" flooded social media. Users showed bald spots and broken hair. Many threw away their Mielle products on camera.
The main products causing issues were:
· Rosemary Mint Scalp & Hair Oil
· Rosemary Mint Shampoo
· Rosemary Mint Hair Masque
· Rosemary Mint Leave-In Conditioner
· Rosemary Mint Styling Crème
P&G has been manufacturing Mielle since 2023. The company never disclosed updated information about the product, leaving many customers unsure. As a result, disappointed customers filed a class-action lawsuit against Mielle and P&G.
Ingredient Breakdown: What’s Inside Mielle Rosemary Oil?

Want to know if Mielle hair loss is real? Let's find its ingredients.
There are various ingredients in the oil, which include rosemary oil. This is an oil that helps enhance the circulation of blood to the head, resulting into promotion of hair growth. Peppermint oil prickles your head. Menthol keeps it cool.
But these oils can cause problems. When too strong, they may irritate your scalp. Studies show that rosemary oil at concentrations above 3.5% can irritate some people's skin.
Other tricky ingredients include:
· Benzonatate: Numbs your nerves
· Nettle Extract: May cause allergies
· Biotin: Can build up on the scalp
Many users report burning scalps before their hair falls out. This happens because these ingredients can make skin very sensitive over time.
Dr. Lily Talakoub said that if you use it in excessive amounts, your scalp can become sensitive. Your skin type and usage control the scalp reaction.
Does Science Back the Hair Loss Claims?
Does Mielle rosemary oil cause hair loss? Experts have looked into these scary claims.
Dermatologists' opinion is that essential oils are the cause of allergic skin diseases. Using them for a long time can surely lead to suffering, as a single ingredient does not cause hair loss.
Dr. Hadley King, a skin expert, explains that allergic reactions can occur even months after safe use.
Many Mielle hair loss reports show this exact pattern. Users were fine at first, then suddenly had problems.
Product experts found several concerning ingredients:
· Peppermint oil and nicotinate can irritate the skin
· Tea tree oil often causes allergic reactions
· Multiple essential oils increase reaction risks
Lab tests found another worry: Their shampoo might contain DEA, a harmful chemical.
While Mielle says they test their products thoroughly, science suggests that allergic reactions to oils likely explain most Mielle hair-loss cases.
Other Factors That Could Explain Hair Loss

Beyond the product itself, several alternative factors might explain the Mielle hair loss reports circulating online. At our company, examining these possibilities provides valuable context.
People often put hair oils on wrong or keep them on their heads too long. Avoid keeping oil on your scalp overnight. Leaving it longer could damage your hair and scalp. Similarly, dirty hair stuck with oil is greasy. The accumulation of over-styled products, combined with sebum, blocks hair follicles and may result in thinning. Proper application requires consistency—twice-weekly applications for 1-2 hours yield the best results.
Hair loss is caused by health issues, not hair care products. Medical conditions such as thyroid problems hormonal changes during pregnancy or menopause, and lack of certain nutrients can lead to hair falling out. Some medications used to treat cancer, depression, and high blood pressure also have an impact on hair loss. Stress following major life events or surgery typically triggers a temporary loss within 2-3 months.
Using fake Mielle products can put you at risk. The company cautions that these counterfeit items lack proper safety testing and could harm your health. This problem started when a beauty influencer made untrue statements about rosemary oil leading to hair loss.
Conclusion
After examining all the evidence, the Mielle hair loss controversy requires a balanced perspective. Thousands of customers have shared similar experiences that cannot be dismissed. However, science points to individual sensitivities rather than dangerous formulations.
The query of whether Mielle rosemary oil makes one lose hair or not does not have a yes or no answer. Essential oils may be allergenic to some individuals. Such reactions may arise without warning, even months after there were no issues with their use.
At TopUnique Hair, we recommend patch-testing any hair product containing essential oils before complete application. People need to follow the right rules when putting oils on their head. Using these oils for too long or in the wrong way will make scalp problems worse.
Furthermore, anyone experiencing unusual hair shedding should consider underlying health factors. Thyroid problems, stress, and medications often cause hair loss that gets wrongly blamed on products.
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