Moérie Review: Good Hair Care, Thin Growth Evidence
A four-step shampoo, conditioner, mask and leave-in spray routine with sensible cosmetic ingredients and one small company-funded study. The set may improve how hair feels, but the evidence for regrowth is much less certain.
What we liked
- Complete four-step routine with clearly published ingredient lists
- Conditioner and mask use established cosmetic conditioning agents and oils
- Daily leave-in spray gives caffeine and other actives meaningful contact time
- Finished spray was studied for three months rather than supported only by ingredient claims
- No SLS or silicones in the current formulas
Worth noting
- The product study had 20 participants, no placebo group and only five instrumental assessments
- Moérie does not disclose the concentration of caffeine, biotin or fulvic acid
- Evidence for topical caffeine is promising but still low quality overall
- Essential oils, limonene, menthol and camphor may bother a sensitive scalp
- The lowest advertised price is tied to automatic renewal
- Early subscription cancellation can require repaying the discount
- The 60-day results guarantee requires dated progress photos and consistent use
Sources and evidence
- Ultimate Hair Growth Spray in-use and instrumental test — GBA POLSKA (commissioned by Moérie)
- Moérie terms and conditions — Moérie
- Caffeine as an Active Ingredient in Cosmetic Preparations Against Hair Loss — PubMed / Healthcare
- Hair loss: Overview — American Academy of Dermatology
- Moerie Beauty customer reviews — Trustpilot
Specs at a glance
| Type | Four-step cosmetic hair-care system |
|---|---|
| Includes | Strengthening shampoo, smoothing conditioner, nourishing mask, thickening spray |
| Shampoo | 250 ml |
| Conditioner | 250 ml |
| Mask | 122 ml |
| Leave-in spray | 150 ml |
| Highlighted ingredients | Caffeine, biotin, fulvic acid, panthenol, niacinamide, amino acids |
| Mask use | 2-3 times weekly |
| Spray use | Daily, directly on the scalp; do not rinse |
| Formula notes | No SLS or silicones in current ingredient lists |
| Guarantee | 60-day results guarantee with documentation requirements |
Frequently asked questions
Does Moerie really regrow hair?
Moérie has a three-month study on its finished leave-in spray, but it is not strong enough to prove regrowth. Twenty people used the spray without a placebo group; 85% gave a positive answer to a hair-growth question, while instrumental scalp images were taken for only five people. A separate 2025 systematic review found topical caffeine promising but rated most available trials low or very low quality. The fair conclusion is possible benefit, not proven regrowth.
What comes in the Moerie Ultimate Hair Boost System?
The four-piece set contains a 250 ml strengthening shampoo, 250 ml smoothing conditioner, 122 ml nourishing mask and 150 ml leave-in thickening spray. Current ingredient lists include caffeine, biotin, fulvic acid, panthenol, niacinamide, amino acids, plant oils and several essential oils. The exact formula on the delivered package should take priority because Moérie says ingredients can change.
Is the Moerie study a clinical trial?
It is a company-commissioned in-use and instrumental cosmetics test, not a randomized placebo-controlled medical trial. All 20 participants knew they were using the product, the efficacy answers were subjective, and the instrumental assessment covered five scalps. It does provide useful safety and consumer data for three months of use, but the design cannot separate the spray's effect from normal variation, expectation or other hair-care factors.
Is Moerie a subscription?
The lowest prices on the official sales funnel are under Subscribe & Save and renew automatically. Current terms say cancellation must be requested at least 72 hours before renewal. If you cancel before the second subscription charge, the company can require you to repay the difference between the subscription discount and the regular price. Choose the one-time option if you do not want repeat shipments.
How does Moerie's 60-day money-back guarantee work?
It is a results-based guarantee with conditions. Moérie requires two consecutive months of use as directed, a photo before starting, dated monthly progress photos, and a short account of how consistently you used the products and whether you used other treatments. Claims filed before day 60 are not eligible under this guarantee. Ordinary returns have separate rules, so read the current terms before ordering.
Can Moerie irritate the scalp?
It can. The current formulas include essential oils plus fragrance allergens such as limonene and linalool, and some products list menthol and camphor. The company study reported no irritation among 20 participants, but it excluded people allergic to the ingredients and is too small to rule out uncommon reactions. Patch-test the leave-in product and stop if burning, rash or persistent itching develops.
Should I use Moerie instead of minoxidil?
No. Moérie is a cosmetic system, while minoxidil is an evidence-based treatment for some causes of hair loss. Hair thinning can come from genetics, stress, illness, medication, hormonal changes or nutritional problems. A dermatologist can identify the cause and tell you whether minoxidil or another treatment fits. Cosmetic hair care can sit alongside that plan, but it should not delay a diagnosis.
