Ecklonia Cava
Brown-seaweed phlorotannin extract studied for antioxidant neuroprotection and cholinesterase inhibition.
Pharmacology
Contents
WHAT IS ECKLONIA CAVA?
Detailed overview
Ecklonia cava is an edible brown seaweed (a marine alga) whose extract is rich in phlorotannins, a class of marine polyphenols including eckol, dieckol, bieckol and phlorofucofuroeckol, together with fucoidan. It is marketed as a dietary supplement (often as the branded polyphenol extract Seanol) and is studied mainly for neuroprotection: the phlorotannins scavenge reactive oxygen species, inhibit acetylcholinesterase and butyrylcholinesterase, and reduce amyloid-beta and oxidative-stress-induced neuronal damage in cell and rodent models. Additional preclinical work points to GABA-A benzodiazepine-site modulation (relaxation, sleep support) and alpha-glucosidase / DPP-IV inhibition (blood-sugar balance). Human clinical evidence for cognition is still limited, so most of the data are preclinical.
Mechanism
Phlorotannin antioxidant + AChE/BChE inhibition
Evidence
Preclinical (cell + rodent), limited human
Legal status
Dietary supplement (contains iodine)
Receptor profile
- Acetylcholinesterase / BChEModerate
- GABA-A (benzodiazepine site)Moderate
- Alpha-glucosidase / DPP-IVModerate
- Reactive oxygen species (antioxidant)Moderate
Safety
Side effects, stop signs, contraindications
Side effects · 5
- Generally well tolerated at the doses studied
- Contains iodine (typical of seaweed): relevant in thyroid disease or iodine sensitivity
- Limited human safety data: most evidence is preclinical
- Possible additive effect with blood-pressure or blood-sugar medication
- Possible mild digestive discomfort (as with other seaweed extracts)
Contraindications · 4
- Pregnancy and breastfeeding: safety not established, and the seaweed iodine load is a concern
- Thyroid disease (hyper- or hypothyroidism): iodine content may affect thyroid function
- Caution with antidiabetic or antihypertensive medication due to additive effects
- Known allergy or sensitivity to seaweed or iodine
Related Nootropics
Same therapeutic category
Studies
Related research and clinical findings
Mixture of Phlorotannin and Fucoidan from Ecklonia cava Prevents the Aβ-Induced Cognitive Decline with Mitochondrial and Cholinergic Activation
Ecklonia cava Ameliorates Cognitive Impairment on Amyloid β-Induced Neurotoxicity by Modulating Oxidative Stress and Synaptic Function in Institute of Cancer Research (ICR) Mice
Ecklonia cava Polyphenols Have a Preventive Effect on Parkinson's Disease through the Activation of the Nrf2-ARE Pathway
Neuroprotective Effects of Ecklonia cava in a Chronic Neuroinflammatory Disease Model
Marine Polyphenol Phlorotannins as a Natural Sleep Aid for Treatment of Insomnia: A Review of Sedative-Hypnotic Effects and Mechanism of Action
FAQ
FAQ
Brown-seaweed phlorotannin extract studied for antioxidant neuroprotection and cholinesterase inhibition.
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Structure & chemistry
The information here is strictly for educational and scientific purposes. It does not replace medical advice or clinical consultation, and it does not encourage illegal substance or pharmaceutical use. Data is sourced. When in doubt, consult your doctor.