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The Efficacy of Lavender Herbal Tea in Premenstrual Syndrome

Psychological and Physiological Effects of Lavender Herbal Tea in Women With Premenstrual Syndrome: a Randomized Clinical Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07737366
Enrollment
60
Registered
2026-07-30
Start date
2025-07-09
Completion date
2025-10-18
Last updated
2026-07-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety, Bleeding, Complementary Medicine, Depression, Pain Measurement, Premenstrual Syndrome, Stress

Keywords

premenstrual syndrome, anxiety, depression, stress, pain measurement, lavender, complementary medicine

Brief summary

Premenstrual syndrome (PMS) is a common but complex condition defined as a combination of emotional, psychological, and physical symptoms that occur during the luteal phase of the menstrual cycle, usually between 2 and 14 days before the onset of menstruation, and that diminish with menstruation. Epidemiological studies have reported that 80-90% of women experience premenstrual syndrome symptoms, with approximately 20-40% reported to affect daily functioning and relationships. Symptoms associated with PMS include irritability, mood swings, anxiety, depression, bloating, breast tenderness, and headaches. Pharmacological treatments such as selective serotonin reuptake inhibitors (SSRIs) and non-pharmacological methods such as dietary changes, exercise, and cognitive behavioral therapy are used in the management of PMS symptoms. Complementary herbal therapies are gaining increasing interest among individuals who want to avoid the side effects of traditional pharmacological agents. Various agents such as Vitex agnus-castus (chaste tree), Hypericum perforatum (St John's wort), evening primrose oil, and conventional herbal formulations have been studied in the literature. Vitex agnus-castus was found to be effective in relieving PMS symptoms by regulating hormonal balance. The antidepressant effects of yellow cantharone have been evaluated, but findings on its efficacy are inconsistent. Evening primrose oil shows particularly favorable effects on cyclic mastalgia. Lavender tea is known to reduce depression, anxiety, and mood swings. There are no clinical studies evaluating the effect of lavender tea on menstrual bleeding. A randomized controlled trial has shown that abdominal massage with lavender oil reduces the severity of menstrual pain. In this context, it may be a potential complementary herbal treatment to relieve PMS symptoms. Therefore, women with PMS will be divided into two groups. The intervention group will use 2 grams of lavender tea 2 times a day, morning and evening, for 9 days during 2 menstrual cycles (5 days before and 4 days after the estimated onset of menstruation). The control group will create a waiting list. The study data will be provided by 'Personal Information Form', 'Premenstrual Syndrome Scale', 'Depression Anxiety Stress-21 Scale', 'Premenstrual Syndrome Specific Quality of Life Scale', Visual Analogue Scale (VAS), and pad follow-up to monitor bleeding. SPSS 25.0 software will be used to analyze the data obtained from the study. Although the effects of lavender tea on PMS are promising, more clinical studies are needed to confirm its effectiveness. With this study, the need for clinical studies on the effectiveness of lavender tea will be met and a natural and complementary treatment method that can alleviate PMS symptoms will be tested.

Detailed description

Premenstrual syndrome (PMS) is a clinical picture characterized by physical, psychological, and behavioral symptoms that occur during the luteal phase of the menstrual cycle, starting approximately one week before menstruation and decreasing with menstruation. The prevalence of PMS is quite high and it is reported that 50-90% of women experience at least one PMS symptom during the reproductive age. Physical symptoms of PMS include breast tenderness and bloating, headaches, muscle and joint pain, fatigue, appetite changes, sleep disturbances, and skin problems. Psychological symptoms include irritability, outbursts of anger, hypersensitivity, crying spells, difficulty focusing, and social isolation. Behavioral symptoms include overeating, increased alcohol and caffeine consumption, sleep irregularity, and decreased physical activity. Pharmacological, non-pharmacological, and complementary approaches are applied in the management of PMS symptoms. Within the scope of pharmacological treatment, Selective Serotonin Reuptake Inhibitors (SSRIs) are widely used, especially in alleviating psychological symptoms. Non-pharmacological interventions include aerobic exercise, cognitive behavioral therapy, mindfulness-based approaches, diet and lifestyle changes. Dietary restriction of caffeine, sugar, and salt consumption has been reported to reduce PMS symptoms. The trend towards complementary therapies is increasing due to the lower side effect profile compared to traditional pharmacological treatments. Various herbal agents such as Vitex agnus-castus (chaste tree), Hypericum perforatum (St John's wort), evening primrose oil, and traditional herbal formulations have been studied in the literature. Vitex agnus-castus was found to be effective in relieving PMS symptoms by regulating hormonal balance. The antidepressant effects of yellow cantharone have been evaluated, but findings on its efficacy are inconsistent. Evening primrose oil shows particularly favorable effects on cyclic mastalgia. Lavender tea has the potential to alleviate depression, anxiety, and mood swings, but there are no clinical studies evaluating the effect of lavender tea on menstrual bleeding. A randomized controlled trial showed that abdominal massage with lavender oil reduced the severity of menstrual pain. However, further research examining the effects of lavender tea specifically on the menstrual process is needed.

Interventions

The participant will receive 36 lavender tea bags containing 2 grams of lavender tea originating from Turkey. The participant will be advised to use 2 grams of lavender herb brewed in 300 mL of hot water in the morning and evening for 9 days during 2 menstrual cycles (5 days before and 4 days after the estimated onset of menstruation).

Sponsors

Sakarya University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)

Intervention model description

Control Group: No intervention will be applied to the participants in this group. Experimental Group: Participants in this group will consume 2 grams of lavender tea twice a day (morning and evening) for two menstrual cycles, starting 5 days before the estimated onset of menstruation in each cycle and continuing until 4 days after the onset of menstruation, for a total of 9 days.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* No history of acute or chronic illness, Meeting the diagnostic criteria for PMS specified by ACOG, Over 18 years of age, No psychiatric distress and no treatment for psychiatric distress in the last 3 months, No (current or past) participation in psychotherapy for premenstrual symptoms, Not pregnant, Gynecological diseases (hysterectomy, oophorectomy, gynecological cancer, polycystic ovary syndrome, endometriosis, infertility) are among the inclusion criteria.

Exclusion criteria

* Allergy to any herbal tea, food or medicine, Psychiatric illness or chronic illness, Use of psychiatric medication (such as anxiolytics and antidepressants), Regular medication use (such as antihypertensive, antidiabetic), Regular use of herbal teas or complementary medicines, Failure to meet the diagnostic criteria for PMS specified by ACOG, No regular menstruation in the last 3 months, Use of oral contraceptives during the last 3 months, Use of analgesics during menstruation while participating in the study.

Design outcomes

Primary

MeasureTime frame
Premenstrual Syndrome Scale1. within 24 hours on the 4th day of menstruation (after the first 9 days of lavender tea use) 2. within 24 hours on the 4th day of menstruation (after the second 9 days of lavender tea use)
Depression Anxiety Stress-21 Scale1. within 24 hours on the 4th day of menstruation (after the first 9 days of lavender tea use) 2. within 24 hours on the 4th day of menstruation (after the second 9 days of lavender tea use)
Premenstrual Syndrome Specific Quality of Life Scale1. within 24 hours on the 4th day of menstruation (after the first 9 days of lavender tea use) 2. within 24 hours on the 4th day of menstruation (after the second 9 days of lavender tea use)

Secondary

MeasureTime frame
Visual Analogue Scale (VAS)1. within 24 hours on the 4th day of menstruation (after the first 9 days of lavender tea use) 2. within 24 hours on the 4th day of menstruation (after the second 9 days of lavender tea use)
Number of pads1. within 24 hours on the 4th day of menstruation (after the first 9 days of lavender tea use) 2. within 24 hours on the 4th day of menstruation (after the second 9 days of lavender tea use)

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 31, 2026