Is Bondi Boost Good for Thinning Hair? 2,400 Reviews vs Mielle, Kitsch

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Review-analysis guide: 8,359 customer reviews read on Ulta and Target (November 13, 2026), sorted and counted by us; product details from the brand pages checked November 13, 2026.

By The Beauty Read · Checked November 13, 2026 · AI-assisted research and editing · Contains Amazon affiliate links

Is Bondi Boost good for thinning hair? Many reviewers who said they had thinning hair thought so, though reviews cannot show what a shampoo did on its own. Of 431 Ulta reviewers who mentioned thinning hair or heavy shedding, 37% said their hair grew or filled in and 29% said shedding slowed, while 9% said shedding got worse. The common catch was greasy roots, reported by 16% of all 2,222 usable reviewers.

Is Bondi Boost good for thinning hair? What 2,400 reviews show

Is Bondi Boost good for thinning hair, and how does it compare with cheaper rosemary shampoos? Three keep coming up together, BondiBoost HG Shampoo for Thinning Hair (paid link), Mielle Rosemary Mint Strengthening Shampoo (paid link) and Kitsch Volumizing Rosemary & Biotin Shampoo (paid link), and all three sit on Ulta's and Target's shelves. [4] [5] [7]

We read 8,359 reviews of them and kept 2,400 that were written at the stores by people who used the shampoo, outside promotions, copied feeds and posting bursts. That is 2,222 for BondiBoost, 122 for Mielle and 56 for Kitsch, so Kitsch's shares move a lot with each review. [4] [5] [6] [7] [8]

Their labels promise different things. BondiBoost markets Redensyl and Procapil (named in its marketing, not by those names in the ingredient list) for fuller-looking hair, Mielle says its biotin nourishes each strand for 'the appearance of longer, healthier hair', and Kitsch sells volume for fine, limp hair and claims 'thickening hair from within after 10 uses'. None of the three brand pages claims to regrow hair, though the Amazon listing we link for Kitsch is titled 'for Hair Growth'. [1] [2] [3]

Reviews cannot measure hair growth. They show what people noticed in the shower drain and the mirror, so read every share below as a report, not a result.

Is Bondi Boost good for thinning hair? 431 reviewers who said they had it

Of BondiBoost's 2,222 usable reviewers, 431 said they had thinning hair, a widening part or heavy shedding. Among them, 37% said their hair grew or filled in, 29% said shedding slowed and 21% said it looked thicker. [4]

Most of that group, 274 of 431, reported at least one of those changes, and 66 said nothing changed or that shedding got worse. Only 18% gave one or two stars, fewer than the 25% across all usable reviews. [4]

Time came up again and again. Across all 2,222 reviewers, those who said they had used it for three months or more said their hair grew 50% of the time (146 of 293), against 1 of 224 of those writing within two weeks. Most of those early reviewers (145 of 224) reported no result either way, and their commonest complaints were greasy roots (33%) and more shedding (16%). [4]

That pattern has a catch. People who keep using a shampoo are the ones it suits, and 30 reviewers also used minoxidil, supplements, rosemary oil or another growth treatment (18 of them reported growth). Reviews cannot separate the shampoo from time, other treatments or whatever caused the shedding. [4]

Mielle rosemary shampoo reviews show softness praise and shedding complaints

Mielle's Ulta page listed 3,533 reviews and loaded 3,530, but 2,673 are copies from Mielle's own site and 716 of the Ulta-written ones came from June to November 2026, when most (583) said the bottle was free. The 91 others from that stretch that we could otherwise have used read just as glowing (3 gave one or two stars), so we left the whole stretch out. Target's newest 408 were nearly all promotion copies. [5] [6]

That leaves 122 Mielle rosemary shampoo reviews written at the stores, mostly from 2023 and 2024. They split. 27% said their hair felt softer or smoother and 18% said it grew, but 32% (39 of 122) said shedding got worse and 41% gave one or two stars. [5] [6]

Curly and coily reviewers were more positive, though there were only 14: 10 said their hair felt soft, and none reported more shedding. Only 6 said they had fine hair, too few to judge. [5]

The copies from Mielle's site told a sunnier story, with 3% one or two stars and 1% more shedding. We set them aside because they were far more one-sided than the reviews written at the stores. [5]

Kitsch rosemary shampoo reviews praise fullness and fault the bottle

Kitsch's liquid shampoo is newer, and its record is small. After setting aside 297 copies from Kitsch's site and 69 January 2026 posts (including 60 similarly worded five-star reviews in four days), 56 Kitsch rosemary shampoo reviews remained. [7] [8]

The praise fits the label. 11 of 56 said their hair looked thicker or fuller and 13 liked the lavender scent, while only 2 said their hair grew. [7] [8] [3]

Its bottle drew the loudest complaint, with 22 of 56 complaining about the bottle or cap, and 6 saw no change at all. Kitsch also sells a rosemary shampoo bar, so check you are buying the liquid. [7] [8]

Mielle vs Bondi Boost on feel, tingle and greasy roots

On feel, Mielle vs Bondi Boost is closer than the growth numbers suggest. 27% of Mielle reviewers said their hair felt soft or smooth, against 25% for BondiBoost. [5] [4]

BondiBoost's biggest complaint was greasy or weighed-down hair (16%), and fine-haired reviewers said so 33% of the time. Its brand page warns that hair may feel oilier than usual during an adjustment period. [4] [1]

Both carry mint. 19% of BondiBoost reviewers liked the scent and 3% enjoyed the tingle, while 11% said it left hair dry or tangled. On Mielle it was 14% scent, 12% a clean-feeling scalp and 8% dry. [4] [5]

BondiBoost also drew formula doubts. In 2024, 20 of its 239 usable reviewers (8%) said the formula had changed, against 1% before 2024; 7 of the 20 also called it greasy and 8 called it drying. [4]

What reviews can't tell you about rosemary shampoo for thinning hair

So does rosemary shampoo help hair growth? These reviews cannot answer that. All three formulas mix rosemary with other ingredients, and BondiBoost's '93% saw less shedding' figure on its own page comes from a one-month perception study of 30 people who also used its conditioner and a tonic. [1]

The same goes for any biotin shampoo for thinning hair, including Mielle's and Kitsch's. What reviews do show is who was happy and who was not, and how often a rosemary shampoo for thinning hair left roots greasy or shedding worse. [5] [7]

If shedding is new, sudden or patchy, a dermatologist can check for a medical cause first. Among BondiBoost reviewers, 55 linked their shedding to having a baby and 124 to a health cause such as thyroid problems, stress or medication. [4]

Our read is simple. BondiBoost HG has the deepest record and the most growth reports, with greasy roots as the common complaint. Mielle's store-written reviewers praised softness more than growth, but 39 of 122 said shedding got worse. Kitsch is sold for fine, limp hair; 11 of 56 said it looked fuller, though only 6 said they had fine hair. [4] [5] [7]

How we read the store pages for this check

Ulta's BondiBoost page showed 12,436 reviews and the pager reached 12,193. Of those, 8,200 were copies from BondiBoost's own site, and only 1.9% of them carried one or two stars against 16% of the 3,993 written at Ulta, so we set the copies aside without reading them and read every review written at Ulta. [4]

Target's Mielle page stopped loading after its newest 408 reviews (August to November 2026), and 404 of them were copies from Mielle's site, 401 collected in a promotion. Kitsch's Target page loaded 258 of 265. BondiBoost at Target is sold through Ulta's shop and shows Ulta's reviews, so we did not count it twice. [6] [8]

Across the three shampoos we read 8,359 reviews. We set aside 3,374 that Mielle's and Kitsch's own sites had copied onto the store pages, because they rarely gave low stars (3% and 7% one or two stars once free, off-topic and duplicate posts were removed, against 41% and 34% for reviews written at the stores), plus three posting bursts: 1,603 BondiBoost reviews from May to September 2021, a surge of several times the usual monthly volume that was 83% five stars, against 64% in the BondiBoost reviews we kept (249 of them dated September 9 alone), 90 from April 2025 (87% five stars), and 69 Kitsch reviews from January 2026, the month of 60 similarly worded five-star posts in four days; its 7 ordinary reviews went out with it. Mielle's Ulta reviews from June to November 2026 (716) were mostly free bottles (583 said so), so that whole stretch is out. Another 107 were repeats, free, off-topic, empty or not yet used. That left 2,400. [4] [5] [6] [7] [8]

Our Amazon links use the product numbers that search results showed for each shampoo on November 13, 2026; for Mielle that was an Amazon collection page plus the same number on other Amazon stores. Amazon's own pages would not load for us, so we could not read who sells them or confirm the size, and each card says so. Every product detail here except the linked listing's title comes from the brand and store pages.

Keep reading

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• Best clarifying shampoo? 701 reviews of Redken, Paul Mitchell and Olaplex
• Best dandruff shampoo? 2,924 reviews of Jupiter, OUAI and Biolage

Frequently asked questions

Is Bondi Boost good for thinning hair, according to reviewers?

Many reviewers with thinning hair said so. Of 431 who mentioned it, 37% said their hair grew and 29% said shedding slowed, while 9% said shedding got worse. Among those 431, people who said they had used it three months or more reported growth far more often (44 of 76) than those writing within two weeks (1 of 38). Reviews cannot separate the shampoo from time or other treatments, and greasy roots were the common complaint.

Mielle vs Bondi Boost: which did reviewers rate higher?

BondiBoost, in the reviews written at the stores. 25% of its 2,222 usable reviewers gave one or two stars, against 41% of Mielle's 122. Soft-hair praise was about even (27% vs 25%), but 32% of Mielle's reviewers (39 of 122) said shedding got worse, against 8% for BondiBoost.

Mielle rosemary shampoo for fine hair: what did reviewers say?

Too few to say. Only six of Mielle's 122 usable store-written reviewers said they had fine hair; 2 of them said it felt soft and 3 said shedding got worse. Curly and coily reviewers, only 14 of them, were more positive: 10 called their hair soft and only 1 gave one or two stars.

Does rosemary shampoo help hair growth?

Reviews cannot prove it. BondiBoost's reviewers reported growth most often (22%), Mielle's 18% and Kitsch's 2 of 56, but each formula mixes rosemary with other ingredients and people who stay with a shampoo are those it suits. See a dermatologist about sudden or patchy shedding.

Why do the store pages show thousands more reviews than this count?

Most of them were copies or freebies. 8,200 of BondiBoost's Ulta reviews and 3,077 of Mielle's came from the brands' own sites, Mielle had a large free-bottle stretch in 2026, and three posting bursts dominated by five-star reviews were set aside. We kept 2,400 written at the stores by people who used the shampoo.