Your energy, minus the hormones.

One daily capsule of Malaysian Tongkat Ali (Eurycoma longifolia), the root studied in 138 women aged 40–55. 100 mg. Nothing else.^*

Supports steady, all-day energy^*
Supports stamina and physical vitality^*
No hormones, no plant estrogens, no caffeine

Choose your planSubscribe & saveFounding price1 bottle every 30 days · founding price locked in · skip or cancel anytime$29/month$3912-week courseBest value3 bottles, one-time · the length of the study$87$117Try 1 bottle30-day supply, one-time$39

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Hormone-free
Studied in women 40–55
Third-party tested
American brand

Sound familiar?

You’ve tried more coffee. Earlier nights. Just pushing through.

Perimenopause can start in your 40s and last for years. We built Rimbaya for the women holding down jobs, kids and aging parents through it, with one well-studied root instead of another kitchen-sink blend.

How it compares

Not another blend. Not another latte.

Rimbaya compared with typical menopause blends and coffee
Feature	Rimbaya	Typical blendTypical menopause blend	CoffeeAfternoon coffee
Hormone- and plant-estrogen-free	Yes	Often soy or red clover	Yes
Caffeine-free, no crash	Yes	Yes	No
Ingredient studied in women 40–55	Same daily dose	Rarely	Not applicable
One ingredient, full dose on the label	Yes	Often a blend	Not applicable
Every batch third-party tested	Yes	Varies	Not applicable

What to expect

Honest timeline: give it twelve weeks.

Women in the study took 100 mg daily for 12 weeks. That’s why our best value is a 12-week course.

Weeks 1–2
Build the habit
One capsule with breakfast. Same time, every day.
Week 6
Stay consistent
The study tested daily use. Skipped days add up.
Week 12
Full course
When the study measured its results.

Individual results vary.

The research

A root with receipts.

4 published studies on Eurycoma longifolia. Swipe through.

Human trial
138 women
aged 40–55 · 12 weeks
Physical symptom scores, energy included, fell 36% vs 26% on placebo.
World Journal of Clinical Cases, 2025 (opens the paper)
Human trial
119 women
aged 41–55 · 24 weeks
Paired with a second herb: better cholesterol markers than placebo.
Food & Nutrition Research, 2020 (opens the paper)
Human trial
63 adults
31 women · 4 weeks
Less tension and lower cortisol than placebo.
J. Int. Society of Sports Nutrition, 2013 (opens the paper)
Review
Safety
literature review
Centuries of traditional use and a wide safety margin in lab testing.
Molecules, 2016 (opens the paper)

Summaries of published research on Eurycoma longifolia, not claims about Rimbaya. Studies used different extracts and doses; several were funded by the extract’s maker. Results vary.

Our promise

Take the full course. Or your money back.

Results take time, so our guarantee does too. Take Rimbaya for the full 12 weeks. If you don’t feel more like yourself, email us within 90 days of your first order for a full refund.

Choose your plan

Questions

Before you decide.

Twelve weeks from now, you could feel like you.

Founding-member pricing, no charge until launch, 90-day guarantee.