[6]-Shogaol (Phenolic Ketone · Potent Anti-inflammatory · Neuroprotective · TRPV1)
| Compound | [6]-Shogaol (6-Shogaol) |
| Chemical class | Phenylpropanoid-related — Phenolic Ketone (Dehydrated gingerol; Vanillyl alkenone) |
| CAS | 555-66-8 |
| Primary source | Zingiber officinale (dried ginger rhizome) — dehydration product of [6]-gingerol |
| Key applications | Anti-inflammatory (more potent than gingerol), neuroprotective, anticancer, TRPV1 agonist |
| Claim strength | Moderate |
| Typical form | Dried ginger extract enriched in shogaols; dried ginger powder (Sonth/Saunth) |
| Buy from Herbuno | Ing Makhir Ginger Powder - Premium Zingiber Rubens | Sonth → |
Name origin: From shoga (Japanese for ginger) + -ol (alcohol suffix applied loosely to this series). Shogaol is formed from gingerol by dehydration (—OH elimination from the β-carbon) during drying and heat processing of ginger — the same reaction that converts the β-hydroxy ketol to the α,β-unsaturated ketone (enone). This dehydration dramatically increases the TRPV1 potency (6-shogaol is 10× more potent than 6-gingerol for TRPV1 activation) and the anti-inflammatory/anticancer activity. Traditional use: Dried ginger (Saunth/Sonth in Hindi, Shunthi in Sanskrit) is distinguished in Ayurveda from fresh ginger (Adrak) as a therapeutically distinct preparation — prescribed more for systemic anti-inflammatory, analgesic, and circulatory applications where shogaol’s enhanced potency is relevant. This traditional distinction is pharmacologically justified by the different gingerol/shogaol ratio in dried versus fresh ginger. Research trajectory: Shogaol has documented greater potency than gingerol for anti-inflammatory (COX-2/5-LOX inhibition), anticancer (apoptosis induction, autophagy), neuroprotective (amyloid-beta inhibition, AChE inhibition), and thermogenic (TRPV1-mediated BAT activation) effects in preclinical models. It is increasingly recognised as a primary anticancer-relevant compound in ginger alongside [10]-gingerol. Commercial source: Ginger Extract Powder and Ing Makhir (Zingiber rubens) Ginger Powder from Herbuno. See sourcing options below.
Evidence for Shogaol Applications
Anti-inflammatory (greater potency than gingerol): Comparative studies consistently show 6-shogaol has 2–5× greater COX-2 inhibition and NF-κB suppression than 6-gingerol at equivalent concentrations. The α,β-unsaturated enone system (Michael acceptor) of shogaol alkylates cysteine residues on NF-κB (Cys-179 of IKKβ) — a covalent, more potent mechanism than gingerol’s non-covalent COX inhibition. Claim strength: Moderate.
Neuroprotective — Alzheimer’s disease models: Shogaol inhibits amyloid-beta (Aβ) aggregation, inhibits β-secretase (BACE1) — the enzyme generating Aβ from APP — and reduces neuroinflammation in AD animal models. Also inhibits AChE (acetylcholinesterase), providing procholinergic neuroprotection. More potent than gingerol in these neuroprotective assays. Claim strength: Moderate (preclinical convergent).
Anticancer: Shogaol induces autophagy-mediated cancer cell death in breast, colon, and ovarian cancer cell lines. It inhibits migration and invasion of cancer cells (anti-metastatic activity). The Michael acceptor mechanism (alkylation of cancer cell proteins) contributes to selectivity for cancer cells with elevated reactive thiol environments. Claim strength: Moderate (preclinical; no clinical trials).
TRPV1 agonism — thermogenic: Shogaol is 10× more potent than gingerol for TRPV1 activation, producing more intense and sustained thermogenic effects (brown adipose tissue activation, increased metabolic rate). Relevant for weight management and thermogenic supplement formulations. Claim strength: Moderate (animal thermogenic data; limited human).
Ing Makhir Ginger Powder - Premium Zingiber Rubens | Sonth →
Browse Standardised Extract Powders →
Dosage & Formulator Specification
No isolated shogaol human dose established. Dried ginger extract (which has higher shogaol content than fresh ginger extract) at 500–2,000 mg/day is used in anti-inflammatory and nausea supplement applications. Specify dried rhizome source and request HPLC shogaol quantification on CoA — shogaol content varies significantly between fresh extract (low shogaol) and dried ginger extract (higher shogaol, particularly after dehydration at 100°C+). For shogaol-enriched formulations, dried ginger extract or controlled dehydration of fresh ginger extract at 100–120°C increases shogaol content. The Ing Makhir dried ginger (Zingiber rubens, a Northeastern Indian culinary ginger) from Herbuno is a regional variety with distinct aromatic profile.
Frequently Asked Questions — Shogaol
Is dried ginger more potent than fresh ginger?
For anti-inflammatory and neuroprotective applications — yes. Drying converts gingerol to the more potent shogaol (via dehydration) and to zingerone (via retro-aldol at high temperatures). For antiemetic applications (5-HT3 receptor antagonism) — fresh ginger’s higher gingerol content may be preferred. Dried ginger is traditionally preferred in Ayurveda for systemic anti-inflammatory, arthritic, and circulatory applications; fresh ginger for nausea and acute GI applications. This traditional distinction maps onto the different pharmacological profiles of gingerol (fresh) versus shogaol (dried).
Why is shogaol more potent than gingerol?
Shogaol’s α,β-unsaturated ketone system (formed by dehydration of gingerol’s β-hydroxyl group) is a Michael acceptor — an electrophilic system that reacts covalently with cellular nucleophiles (cysteine residues on proteins). This covalent modification is irreversible and generally produces more potent and sustained pharmacological effects than gingerol’s reversible non-covalent binding. The same Michael acceptor mechanism underlies shogaol’s greater TRPV1 potency, NF-κB covalent inhibition, and anticancer activity.
Can shogaol be combined with curcumin for enhanced anti-inflammatory effects?
Yes — rationally synergistic. Shogaol inhibits NF-κB covalently (via IKKβ Cys-179 alkylation) and inhibits COX-2/5-LOX. Curcumin inhibits NF-κB via a different binding mechanism, additionally inhibits STAT3 and NLRP3. Both have poor oral bioavailability as standard powders — co-formulation in a lipid-based or nanoparticle system addresses both simultaneously. This is a commercially established combination with mechanistic depth, though no specific RCT has studied this exact combination.
Is shogaol the active compound in ginger-based weight management products?
Shogaol’s TRPV1 agonism (10× more potent than gingerol) and BAT thermogenesis activation makes it more relevant for thermogenic weight management than gingerol. However, the human evidence for ginger (any form) producing clinically meaningful weight loss is limited — modest reductions in waist circumference are the most consistently replicated finding. Position as “may support healthy metabolism” rather than for significant weight loss claims without stronger human RCT evidence for isolated shogaol.
Related compounds: Gingerol, Zingerone, Capsaicin, Thymoquinone
Claim-strength scale – High = multiple human RCTs; Moderate = limited trials or strong preclinical convergence; Emerging = early-stage lab or animal data.
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