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Cistanche tubulosa

Cistanche tubulosa
Evidence Level
Limited
2 Clinical Trials
5 Documented Benefits
2/5 Evidence Score

Cistanche tubulosa (Chinese: Rou Cong Rong) is a parasitic desert plant traditionally used in Chinese medicine for vitality, kidney-yang support, and male sexual function. Modern phytochemistry identifies a class of phenylethanoid glycosides—principally echinacoside and acteoside (verbascoside)—as the main bioactive constituents. Preclinical studies in animal models and a small set of human trials suggest effects on testosterone-related pathways, sexual performance markers, and cognitive endpoints. A standardized Cistanche tubulosa glycoside formulation (Memoregain®) has been studied for moderate Alzheimer's disease. Evidence in humans remains early-stage but consistent in direction.

Studied Dose Standardized extracts (30-50% PhGs): 300-600 mg/day. Memoregain® glycoside capsules: ~1.8 g/day (2 x 300 mg glycoside capsules, 3 times daily) in Alzheimer's pilot work.
Active Compound Phenylethanoid glycosides — echinacoside, acteoside (verbascoside), cistanoside; standardized extracts often 30-50% total glycosides.

Benefits

Supports Male Sexual Function

Traditional and preclinical evidence supports use of Cistanche tubulosa phenylethanoid glycosides for sexual vitality in men, with animal models showing improvements in mounting frequency and erectile parameters.

Supported by Trial 2, Trial 1

May Support Healthy Testosterone Levels

Animal studies of phenylethanoid glycosides demonstrate upregulation of testicular steroidogenic enzymes (CYP450, 3β-HSD) and increased testosterone synthesis, providing a plausible mechanism for traditional androgenic uses.

Supported by Trial 1, Trial 2

Cognitive Support in Older Adults

Echinacoside and acteoside show neuroprotective activity in preclinical models, and a small open-label (uncontrolled) study in moderate Alzheimer's disease found no statistically significant mean change in cognitive scores over 48 weeks.

Supported by Trial 1

Adaptogenic Vitality Support

Traditional Chinese medicine uses Cistanche for fatigue and reduced vitality, particularly in aging adults. Modern human work pairing Cistanche with Ginkgo has examined chronic-fatigue endpoints with positive direction of effect.

Supported by Trial 2

Antioxidant Phenylethanoid Glycosides

Echinacoside and verbascoside are potent radical scavengers in laboratory assays and contribute to anti-inflammatory and neuroprotective activity in cell and animal models.

Mechanism of action

1

Steroidogenic Enzyme Upregulation

Phenylethanoid glycosides modulate testicular CYP450 and 3β-HSD enzymes, supporting cholesterol-to-testosterone conversion in preclinical models of reproductive dysfunction.

2

Neuroprotection by Echinacoside

Echinacoside inhibits oxidative stress, supports mitochondrial function, modulates BDNF expression, and attenuates amyloid-β toxicity in cell and animal models of neurodegeneration.

3

Cholinergic Modulation

Cistanche extracts reverse cholinergic dysfunction and partially restore hippocampal dopaminergic transmission in Alzheimer's-like rodent models, contributing to the cognitive signal.

4

Anti-Inflammatory and Antioxidant

Phenylethanoid glycosides scavenge ROS, inhibit NF-κB activation, and reduce pro-inflammatory cytokines in vitro, supporting broader effects on age-related tissue stress.

Clinical trials

1
Cistanche tubulosa Glycoside Capsules in Moderate Alzheimer's Disease

Open-label, non-placebo-controlled study of standardized Cistanche tubulosa glycoside capsules (Memoregain®) over 48 weeks. Outcomes: ADAS-cog, MMSE, ADL, Blessed Behavioral Scale, CGI.

18 patients with moderate Alzheimer's disease; 48-week intervention.

The mean ADAS-cog change from baseline over 48 weeks was not statistically significant; on a per-patient basis scores improved in 10, deteriorated in 7, and stayed unchanged in 1 patient. MMSE and ADL scores remained stable; adverse events were mild. Suggests Memoregain® may help support cognitive stability in moderate AD, though the open-label design limits causal interpretation.

2
Cistanche tubulosa + Ginkgo for Chronic Fatigue Symptoms

Randomized, double-blind, placebo-controlled trial of a botanical formulation combining Cistanche tubulosa and Ginkgo biloba extracts in adults aged 35-60 with chronic-fatigue-syndrome-like symptoms.

Adults aged 35-60 with chronic fatigue symptoms.

The combined botanical product was associated with statistically significant (p < 0.001) improvements in fatigue and quality-of-life measures vs placebo over 60 days. Cistanche's contribution cannot be isolated from Ginkgo, but the combination signal is consistent with traditional adaptogenic positioning.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated in human trials at the doses studied.
Mild gastrointestinal upset (loose stools, nausea) at high doses; traditional use notes a laxative effect.
Possible mild headache or restlessness in sensitive individuals.
Caution in those with hormone-sensitive conditions due to potential androgenic activity.
Limited long-term safety data; avoid in pregnancy and breastfeeding.

Important Drug interactions

Testosterone or other androgenic therapies — additive effects possible; monitor with provider.
Anticoagulants — phenylethanoid glycosides may have mild antiplatelet activity; monitor when combining.
Cholinesterase inhibitors — theoretical additive cognitive effects; combination has not been formally studied.
5-alpha-reductase inhibitors — interaction with prostate-related medications not well characterized.

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Frequently asked questions about Cistanche tubulosa

What is cistanche used for?

Cistanche (rou cong rong) is a desert plant used in Chinese medicine as a yang and kidney tonic for vitality, libido, energy, and bowel regularity (it is gently moistening for the intestines). It is also studied for cognitive and anti-aging support.

What is cistanche good for?

It is traditionally used for sexual vitality and energy, lower-back and bone strength, and gentle relief of dryness-related constipation, and modern research explores its compounds (like echinacoside) for cognition and longevity.

How much cistanche should I take?

It is used within traditional formulas or as standardized extracts; follow product or practitioner guidance.

Is cistanche safe?

Within traditional practice it is generally considered safe and well tolerated. Those with medical conditions or on medication should check with a knowledgeable practitioner or doctor.

What is Cistanche tubulosa?

Cistanche tubulosa (Chinese: Rou Cong Rong) is a parasitic desert plant traditionally used in Chinese medicine for vitality, kidney-yang support, and male sexual function.

What is Cistanche tubulosa used for?

Cistanche tubulosa is researched primarily for Men's Health, Testosterone, and Libido Support. Traditional and preclinical evidence supports use of Cistanche tubulosa phenylethanoid glycosides for sexual vitality in men, with animal models showing improvements in mounting frequency and erectile parameters.

What is the recommended dosage of Cistanche tubulosa?

The clinically studied dose is Standardized extracts (30-50% PhGs): 300-600 mg/day. Memoregain® glycoside capsules: ~1.8 g/day (2 x 300 mg glycoside capsules, 3 times daily) in Alzheimer's pilot work. Always follow the product label and check with a healthcare provider for personal advice.

Is Cistanche tubulosa safe, and does it have side effects?

For most healthy adults, Cistanche tubulosa is well tolerated at studied doses. Reported effects can include: Generally well-tolerated in human trials at the doses studied. Mild gastrointestinal upset (loose stools, nausea) at high doses; traditional use notes a laxative effect. It may also interact with some medications. Cistanche tubulosa is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Cistanche tubulosa interact with any medications?

Possible interactions include: Testosterone or other androgenic therapies — additive effects possible; monitor with provider. Anticoagulants — phenylethanoid glycosides may have mild antiplatelet activity; monitor when combining. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Cistanche tubulosa?

NutraSmarts rates the evidence for Cistanche tubulosa as Limited (2 out of 5). It is backed by 2 clinical trials and 3 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(3 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Guo Q, Zhou Y, Wang CJ, Huang YM, Lee YT, Su MH, Lu J. An open-label, nonplacebo-controlled study on Cistanche tubulosa glycoside capsules (Memoregain®) for treating moderate Alzheimer's Disease. Am J Alzheimers Dis Other Demen. 2013;28(4):363-70. doi: 10.1177/1533317513488907.PubMedUsed to support: 48-week open-label study of Cistanche tubulosa glycoside capsules (Memoregain®) in 18 moderate-AD patients showed no statistically significant change in mean ADAS-cog over 48 weeks (per-patient: 10 improved, 7 worsened, 1 unchanged), with mild adverse events.
  2. Wang Q, Huang J, Zheng Y, Guan X, Lai C, Gao H, Ho CT, Lin B. Selenium-enriched Cistanche tubulosa polysaccharides phenylethanoid glycosides improved reproductive dysfunction by regulating testicular steroids through CYP450-3β-HSD pathway. J Ethnopharmacol. 2020;251:112515. doi: 10.1016/j.jep.2019.112515.PubMedUsed to support: Animal model demonstrating Cistanche tubulosa phenylethanoid glycosides upregulate testicular CYP450 and 3β-HSD steroidogenic enzymes, supporting androgenic activity and the traditional use for male reproductive support.
  3. Kan J, Cheng J, Xu L, Hood M, Zhong D, Cheng M, Liu Y, Chen L, Du J A botanical product containing Cistanche and Ginkgo extracts potentially improves chronic fatigue syndrome symptoms in adults: a randomized, double-blind, and placebo-controlled study. Frontiers in Nutrition. 2021;8:658630. doi:10.3389/fnut.2021.658630.PubMedUsed to support: The combination (Cistanche tubulosa + Ginkgo biloba) chronic-fatigue RCT (n=190, 60 days) reporting significant improvements in fatigue and quality-of-life measures vs placebo. Cistanche's contribution cannot be isolated from Ginkgo, and the study is supplier-linked.