TikTok is awash with hacks that promise to deliver princess-like hair with minimum effort.
Although some trends fade as quickly as they blow up, rosemary oil’s reputation for stimulating hair growth when massaged in regularly – and the amount of influencers who now swear by it – is growing by the minute.
With 12.3 million views for ‘rosemary hair oil’ on TikTok, and a 395% increase in Google searches over the past 12 months, the wonder ingredient’s reported credentials for delivering longer, stronger and thicker locks is now becoming a hair care staple.
Although the trend initially blew up because content creators were raving about indie brand Mielle’s cult product Rosemary Mint Scalp & Hair Strengthening Oil, interest in the ingredient continued to soar.
Last year, influencer mentions about ‘rosemary oil’ soared 96%, found marketing platform Traackr, while engagement increased 62% and video views 104% respectively.
Rosemary is a medicinal plant that has traditionally been used in beauty to treat a myriad of skin issues, including irritation.
However, its anti-inflammatory properties also make it ideal for general hair health and scalp healing.
The science speaks to this too: a study by SkinMed, for example, compared rosemary oil’s hair care benefits to minoxidil, a popular hair regrowth treatment.
People with DHT-related hair loss who were treated with rosemary oil had more hair growth after six months than the minoxidil group.
Many brands have now dropped rosemary-infused hair products to meet consumer demand.
These are the ones you need to know about.
Mielle, Rosemary Mint Strengthening Conditioner

Building on the buzz surrounding TikTok famous Rosemary Mint Scalp & Hair Strengthening Oil, Mielle has added more rosemary options.
Its new Rosemary Mint Strengthening Conditioner infuses biotin and mint with rosemary to improve the overall condition of hair thanks to its antifungal properties.
It also helps to soften and detangle.
RRP $9.99
Camille Rose, The Rosemary Collection

Rosemary oil is paired with peppermint, amla, apigenin, shikakai and biotin in this five-piece, vegan collection to boost hair strength and help fight against breakage.
The range comprises Strengthening Hair & Scalp Cleanser, 5-Minute Strengthening Mask, Water Hair Spritz (pictured), Strengthening Hair Drops and a Hydrating Leave-In Oil.
All draw on rosemary’s antioxidant and anti-inflammatory properties.
RRP from $12
Monat, IR Clinical Range

The vegan beauty brand’s unisex hair care range focuses on maintaining a healthy scalp and has rosemary oil at the heart of its formulation.
The collection comprises a shampoo, conditioner and serum which all aim to strengthen locks and increase hair density, while preventing damage and thinning from brushing and combing.
RRP from £43
Tonic15, Aromatica Sea Salt Scalp Scrub and Rosemary Root Enhancer

Tonic15 has tapped into the trend with two new products. Sea Salt Scalp Scrub blends rosemary extract with mineral-rich Dead Sea salt to cleanse, stimulate microcirculation and restore balance.
Rosemary Root Enhancer, meanwhile, features salicylic acid and the brand’s 7-Vitamin Complex to nourish follicles, boosting volume and thickness.
RRP from £14
Odylique, Hydrating Lavender Shampoo

Designed for sensitive scalps, Hydrating Lavender Shampoo is the sister product to the brand’s best-selling Certified Organic Shampoo.
Anti-inflammatory rosemary stars alongside hero ingredient lavender to cleanse hair without disrupting the scalp’s natural sebum or acid balance.
Organic avocado and coconut oil, chamomile, nettle, horsetail and aloe vera also hydrate.
RRP £13
Hair Syrup, Grows-Mary

Hair Syrup’s rosemary-powered pre-wash dry hair treatment claims to help those in “need of a re-growth acceleration”.
Aimed at customers with fine or thinning hair, it blends thyme-infused syrup with rosemary oil, said to activate hair growth rates when massaged into the scalp regularly.
Rosemary gives the product a natural, fresh smell.
RRP £15.50