Science
Tongkat Ali and Libido: What Human Research Shows
A cautious review of human Tongkat Ali studies that measured sexual-function outcomes, with material, population, and product-boundary limits for dried root tea.
Does Tongkat Ali increase libido? Some small human studies of defined Eurycoma longifolia-containing supplements measured sexual-function outcomes. Their materials, populations, and co-interventions vary, so they don't establish a libido effect for dried root tea or this specific product batch.
Direct Answer
“Libido” is a subjective outcome influenced by physical health, mental health, relationship factors, sleep, medicines, and expectations. A study of a specific supplement can answer a narrow question about that intervention and population — it can’t turn Tongkat Ali root tea into a treatment for low desire, erectile difficulty, infertility, or a hormone disorder. Standardized extract study, dried root tea, and this product batch remain three different things throughout.
What Selected Human Studies Measured
| Study | Year/source | Participants/design | Study material | Dose/duration | Outcome scope | Important limitation |
|---|---|---|---|---|---|---|
| Physta® + Polygonum minus trial | 2014 | Men 40–65; randomized, double-blind, placebo-controlled, 26 completed | 300mg combination: Physta® water extract + Polygonum minus | 12 weeks | Questionnaires on sexual performance, erection hardness, mood | Tested a combination, not Tongkat Ali alone and not root tea |
| ADAM trial | 2021 | 45 men with androgen deficiency of aging males; four-arm RCT | E. longifolia supplement; specification not stated in the PubMed record reviewed | 200mg, 6 months, concurrent-training arm included | Erectile function index, Aging Male Scale, total testosterone | Training and supplement were combined in the strongest-result arm; not a root-tea study |
| Idiopathic male-infertility study | 2010 | Sub-fertile male partners; follow-up report | Proprietary standardized water-soluble root extract | 200mg daily; follow-up over 9 months | Semen parameters and pregnancies, not a direct libido outcome | 350 started, 75 completed one cycle; not evidence for tea or a libido treatment |
What These Studies Don’t Show
They don’t establish that our dried root slices improve libido, erectile function, or fertility; treat erectile dysfunction; have a clinically validated sexual-health dose; work within a specified number of weeks; are equivalent to a studied extract or combination product; or are safe for every person or alongside medicines. The published outcomes also aren’t interchangeable — a questionnaire score, a hormone lab value, a semen parameter, and a subjective desire measure are different endpoints.
Product and Batch Distinction
We sell dried root slices for tea. We don’t publish a batch-specific COA, DNA identification, eurycomanone concentration, or clinical trial of this batch, so we can’t connect a cup of tea to the intervention in any study above. See Root Slices vs Extract and Product Testing Status.
When Medical Assessment Matters
Persistent changes in desire, erectile function, or fertility can have many causes and may warrant clinical assessment. Don’t use an herbal tea instead of evaluation for cardiovascular, endocrine, medication-related, mental-health, or relationship concerns. People using medicines, with hormone-sensitive conditions, or who are pregnant, breastfeeding, or trying to conceive should seek qualified advice before use.
FAQ
Does Tongkat Ali increase libido? Some small human studies of defined Eurycoma longifolia-containing supplements measured sexual-function outcomes, but their materials and co-interventions vary. They do not establish a libido effect for dried root tea or this product batch.
Is Tongkat Ali a treatment for erectile dysfunction? No. This page summarizes research boundaries; it does not establish a treatment for erectile dysfunction or replace clinical assessment of sexual-health symptoms.
Sources and Related Reading
Evidence Index · Tongkat Ali and Testosterone · Tongkat Ali and Drug Interactions · Tongkat Ali for Women · Red Tongkat Ali Safety
Educational information, not medical advice. This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions
Scientific research and product-specific testing answer different questions. See Product Batch Testing.
