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Rsm4.0

Rosemary Oil (topical) – Forschung

Überwiegend Mechanismus / Beobachtung

7 begutachtete Studien

Was die Evidenz sagt

Überwiegend Mechanismus / Beobachtung

Die meisten Studien zu Rosemary Oil (topical) sind mechanistisch oder beobachtend statt RCTs, die einen klinischen Effekt messen — betrachte die Ergebnisse als vorläufig.

Die meiste Evidenz stammt aus mittelwertigen randomisierten Studien, veröffentlicht 1998–2024 mit einer typischen Studiengröße von 100 Teilnehmenden.

Basierend auf 7 Studien · 5 RCTs · 186 Teilnehmende insgesamt

Konfidenz

Mittlere Konfidenz

Nach Outcome

Hair & nails
Überwiegend Mechanismus / Beobachtung4 Studien
Cognitive function
Zu wenige bewertete Studien1 Studie
Anxiety & stress
Zu wenige bewertete Studien1 Studie
Men's vitality
Zu wenige bewertete Studien1 Studie
Safety profile
Zu wenige bewertete Studien1 Studie

Aktives Forschungsgebiet

3 Studien in den letzten 5 Jahren

199820112024

1RCT2018

Moss M, Smith E, Milner M, McCready J · J Psychopharmacol (2018)

Quelle ansehen

2RCT2021

Nasiri A, Boroomand MM · Complement Ther Clin Pract (2021)

Quelle ansehen

3RCT2024

Sayadi Mank-Halati M, Rezaei M, Farzaei MH, Khatony A · Explore (NY) (2024)

Quelle ansehen

4Systematische Übersicht2023

Einfach gesagt: Inconsistent or poorly reported study methodology and nonstandardized outcomes limit the conclusions that can be made from these studies.

Tkachenko E, Okhovat JP, Manjaly P, Huang KP, Senna MM, Mostaghimi A. · J Am Acad Dermatol (2023)

Systematic review: of 1015 citations, 16 studies met inclusion; essential-oil aromatherapy was among the complementary therapies with the 'best' (but sparse, low-quality) evidence for hair growth
Reviewers explicitly cautioned that inconsistent, poorly reported methodology and nonstandardized outcomes limit any firm conclusions
Adverse events across these therapies were rare and mild, supporting a favourable topical safety profile

Quelle ansehen

5RCTn=100 · medium study2015

Einfach gesagt: Both groups experienced a significant increase in hair count at the 6-month endpoint compared with the baseline and 3-month endpoint; no significant difference was found between the study groups regarding hair count either at month 3 or month 6.

Panahi Y, Taghizadeh M, Marzony ET, Sahebkar A. · Skinmed (2015)

Randomized comparative trial: 100 patients with androgenetic alopecia assigned to rosemary oil (n=50) or minoxidil 2% (n=50) for 6 months
Both groups had comparable, statistically significant increases in hair count, with no significant between-group difference at month 3 or month 6
Neither group improved at 3 months; scalp itching was more frequent with minoxidil than rosemary oil

6RCTn=86 · small study1998

Einfach gesagt: The active group massaged essential oils (thyme, rosemary, lavender, and cedarwood) in a mixture of carrier oils (jojoba and grapeseed) into their scalp daily. The control group used only carrier oils for their massage, also daily.

Hay IC, Jamieson M, Ormerod AD. · Arch Dermatol (1998)

7-month double-blind RCT for alopecia areata: 86 patients; the active essential-oil group improved in 19/43 (44%) vs 6/41 (15%) of carrier-oil controls (P=.008)
The intervention was a COMBINATION of thyme, rosemary, lavender, and cedarwood oils — not rosemary alone — so benefit cannot be attributed to rosemary specifically
Treats alopecia areata (autoimmune patchy loss), a different condition from androgenetic (pattern) hair loss

Quelle ansehen

7Tierstudie2013

Einfach gesagt: Topical administration of Rosmarinus officinalis leaf extract (RO-ext, 2 mg/day/mouse) improved hair regrowth in C57BL/6NCrSlc mice that experienced hair regrowth interruption induced by testosterone treatment.

Murata K, Noguchi K, Kondo M, Onishi M, Watanabe N, Okamura K, Matsuda H. · Phytother Res (2013)

Topical rosemary leaf extract restored testosterone-suppressed hair regrowth in mice and promoted regrowth in shaved mice, supporting an anti-androgenic mechanism
Rosemary extract inhibited testosterone 5-alpha-reductase by 82.4% and 94.6% at 200 and 500 µg/mL in vitro; 12-methoxycarnosic acid was identified as an active constituent
The extract also inhibited androgen-dependent cell proliferation, suggesting interference with DHT-androgen-receptor signalling

Quelle ansehen

In der Forschungsbibliothek ansehen

Rosemary Oil (topical) – Forschung

Überwiegend Mechanismus / Beobachtung

Acute ingestion of rosemary water: Evidence of cognitive and cerebrovascular effects in healthy adults.

The effect of rosemary essential oil inhalation on sleepiness and alertness of shift-working nurses: A randomized, controlled field trial.

Comparing the effects of rosemary aromatherapy and music therapy on anxiety levels in patients undergoing general surgery: A randomized controlled clinical trial.

Complementary and alternative medicine for alopecia areata: A systematic review.

Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial.

Randomized trial of aromatherapy. Successful treatment for alopecia areata.

Promotion of hair growth by Rosmarinus officinalis leaf extract.