Comparison
Ashwagandha vs Noopept
Side-by-side of Ashwagandha and Noopept. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Ashwagandha
Ashwagandha supplement guide: KSM-66 and Sensoril extracts at 300-600 mg/day cut morning cortisol and stress in RCTs. Dose, side effects, testosterone data.
Noopept
Noopept cognitive enhancer profile: 10 to 30 mg dosage, dipeptide nootropic mechanism, memory effects, and how it compares to piracetam.
Effects at a glance
Ashwagandha
- •Reduces morning serum cortisol by ~20 to 30% at 300 to 600 mg/day standardized extract over 8 weeks
- •Lowers subjective stress on DASS-21 and PSS scales versus placebo in chronically stressed adults
- •Modest grip-strength and 1-RM gains of ~5 to 8% in trained men when paired with resistance training
- •Improves self-reported sleep quality and onset latency in adults with insomnia symptoms
- •Small testosterone increases (~10 to 15%) reported in stressed or subfertile men, less clear in healthy populations
- •May raise free T3 and T4; can interact with levothyroxine and unmask subclinical hyperthyroidism
Noopept
- •Russian dipeptide nootropic developed in the 1990s, registered in Russia 2002 for cognitive impairment
- •Roughly 1,000-fold higher per-mg potency than piracetam; therapeutic dose 10 to 30 mg/day
- •Active metabolite cycloprolylglycine modulates AMPA receptors and increases NGF and BDNF in rodent hippocampus
- •Russian RCTs in stroke recovery and vascular cognitive impairment show modest improvements over 4 to 8 weeks
- •Western evidence base is essentially absent; healthy-adult enhancement trials have not been published
- •Unscheduled in the US but not approved for human consumption; UK is prescription-only since 2014
Side-by-side
| Attribute | Ashwagandha | Noopept |
|---|---|---|
| Category | natural | nootropic |
| Also known as | Withania somnifera, KSM-66, Sensoril | GVS-111, N-phenylacetyl-L-prolylglycine ethyl ester, Omberacetam |
| Half-life (hr) ↗ | 10 | 0.7 |
| Typical dose (mg) ↗ | 600 | 20 |
| Dosing frequency | daily | 2 to 3 times daily, last dose before mid-afternoon |
| Routes | oral | oral, sublingual |
| Onset (hr) | 2 | 0.5 |
| Peak (hr) | - | 1 |
| Molecular weight | - | 318.37 |
| Molecular formula | - | C17H22N2O4 |
| Mechanism | GABAergic modulation and HPA-axis attenuation; withanolides reduce cortisol secretion and inhibit NF-kB signaling. | Hydrolyzed to active metabolite cycloprolylglycine; AMPA receptor modulation, BDNF and NGF upregulation, antioxidant and antiexcitotoxic effects. |
| Legal status | Dietary supplement in most jurisdictions; regulated in Denmark | Approved in Russia and CIS states; prescription-only in UK; unscheduled and unapproved in US, EU varies |
| WADA status | allowed | unknown |
| DEA / Rx | OTC supplement | Not scheduled in the US |
| Pregnancy | Not recommended | Not recommended |
| CAS | - | 157115-85-0 |
| PubChem CID | - | 183503 |
| Wikidata | Q310109 | Q4321022 |
Safety profile
Ashwagandha
Common side effects
- mild GI upset
- drowsiness
- headache
Contraindications
- pregnancy
- autoimmune disease (theoretical immune stimulation)
- hyperthyroidism
- concurrent sedative use
Interactions
- benzodiazepines: additive CNS depression(moderate)
- thyroid hormone (levothyroxine): may raise T3/T4, altering dose requirements(moderate)
- immunosuppressants: theoretical antagonism via immune stimulation(moderate)
Noopept
Common side effects
- headache
- irritability
- sleep disturbance with late-day dosing
- occasional blood pressure elevation
Contraindications
- pregnancy
- lactation
- pediatric use
- severe hepatic impairment
- severe renal impairment
Interactions
- memantine and other glutamatergic agents: theoretical AMPA-pathway interaction(minor)
- antidepressants: theoretical effect via BDNF axis, undocumented(minor)
- antihypertensives: occasional blood pressure elevation may require monitoring(minor)
Which Should You Take?
Ashwagandha comes out ahead for most readers on the criteria we weight: 3 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-B outcome catalogued. Noopept is the right call when one of the conditionals below applies.
- → If your priority is hormonal optimization, pick Ashwagandha.
- → If your priority is memory, pick Noopept.
- → If your priority is stress and HPA-axis regulation, pick Ashwagandha.
Edge case: If you want to avoid controlled substance, Ashwagandha is the more accessible choice.
Default choice: Ashwagandha. Lower friction to source, and broader goal coverage. Reach for Noopept only if your priority sits squarely in the goals it owns above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Ashwagandha and Noopept?
Ashwagandha and Noopept differ in category (natural vs nootropic), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Ashwagandha or Noopept?
Ashwagandha half-life is 10 hours; Noopept half-life is 0.7 hours.
Can you stack Ashwagandha with Noopept?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
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